CA2302930A1 - Low headroom bracket device for sectional overhead door - Google Patents
Low headroom bracket device for sectional overhead door Download PDFInfo
- Publication number
- CA2302930A1 CA2302930A1 CA 2302930 CA2302930A CA2302930A1 CA 2302930 A1 CA2302930 A1 CA 2302930A1 CA 2302930 CA2302930 CA 2302930 CA 2302930 A CA2302930 A CA 2302930A CA 2302930 A1 CA2302930 A1 CA 2302930A1
- Authority
- CA
- Canada
- Prior art keywords
- steel
- steel plate
- welded
- plate
- door
- 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.)
- Abandoned
Links
- 229910000831 Steel Inorganic materials 0.000 abstract description 23
- 239000010959 steel Substances 0.000 abstract description 23
- 235000014647 Lens culinaris subsp culinaris Nutrition 0.000 description 10
- 241000219739 Lens Species 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 240000004322 Lens culinaris Species 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- -1 viny Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- E05D15/16—Suspension arrangements for wings for wings sliding vertically more or less in their own plane
- E05D15/24—Suspension arrangements for wings for wings sliding vertically more or less in their own plane consisting of parts connected at their edges
- E05D15/244—Upper part guiding means
- E05D15/248—Upper part guiding means with lever arms for producing an additional movement
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
- E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
-
- 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
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wing Frames And Configurations (AREA)
Abstract
An attachment for use with a front mount torsion spring assembly related to hinge connected sections. A top bracket fixture (A) comprised of a left and right side that is attached to the top of a sectional garage door (B) on both the left and right end styles (C). They allow the top section to independently tip inwards before there is any upward movement of the door.
This invention is comprised of a rectangular steel plate (1) with a ninety degree bend at the top (6). With a series of specified punched holes (2), and two small pieces of steel tubing welded to the outside of said steel plate (4), but not extending past its width.
A secondary steel plate (6) smaller in width and height is welded to specified steel tube (3) at the bottom of the steel plate (6) and no wider than its width, while a second steel tube (5) of the same dimensions is welded to the top of the secondary plate (6), so as to extend past the width of said plate, creating a left and right bracket. Both steel tubes (5/3) are welded to the same side of said steel plate (6). The smaller rectangular steel plate (6) is then aligned between the two pieces of tubing (4) that is welded to the larger steel plate (1), a steel pin (7) is inserted and welded to the steel tube (4) of first said steel plate (1) thus creating a hinge between the two steel plates. A standard two or three inch roller (8) is inserted into the tubing extending outwardly from the smaller steel plate (5). This is inserted into a standard horizontal 12" or 15" radius curve track (9). The larger first mentioned plate (1) is then attached to the top section of the door (B) through the specified punched holes (2) with appropriate fasteners.
This invention is comprised of a rectangular steel plate (1) with a ninety degree bend at the top (6). With a series of specified punched holes (2), and two small pieces of steel tubing welded to the outside of said steel plate (4), but not extending past its width.
A secondary steel plate (6) smaller in width and height is welded to specified steel tube (3) at the bottom of the steel plate (6) and no wider than its width, while a second steel tube (5) of the same dimensions is welded to the top of the secondary plate (6), so as to extend past the width of said plate, creating a left and right bracket. Both steel tubes (5/3) are welded to the same side of said steel plate (6). The smaller rectangular steel plate (6) is then aligned between the two pieces of tubing (4) that is welded to the larger steel plate (1), a steel pin (7) is inserted and welded to the steel tube (4) of first said steel plate (1) thus creating a hinge between the two steel plates. A standard two or three inch roller (8) is inserted into the tubing extending outwardly from the smaller steel plate (5). This is inserted into a standard horizontal 12" or 15" radius curve track (9). The larger first mentioned plate (1) is then attached to the top section of the door (B) through the specified punched holes (2) with appropriate fasteners.
Description
BACKGROUND OF
THE INVENTION
This invention related directly to hinge connected sectional doors, and low lentil heights. It is common place knowledge that industry standard door panel range in width from 19, 21 to 24 inches respectively.
These doors, when installed with a front mount torsion spring assembly, typically require 12" to 15" of headroom depending whether the horizontal track is of 12 or 15 inch curve radius. Lentil heights below thesespecifications greatly inhibit the use of the industry standard track systems.
Problematic to impossible installations occur as lintel heights decrease.
PRIOR ART
An overhead door is comprised of sectionally connected panels, which may be manufactured from steel, aluminum, viny, fibreglass, and wood. Typically they can be insulated or non-insulated. Panels typically measure in width 19", 21" or 24". When stacked into a building or truck opening, various heights may be achieved.
Hardware requirements are as follows.
Industry standard hinges are affixed between door sections as cited, (J.P>
Holland 3,484,812, 2 sheets, sheet 1). A
bottom bracket is attached to the end styles of the lowest section and provide an attachment for a steel cable, which in turn is connected to a counter balance system.
(A. V. Rowe 2289045, 3 sheets, sheet 1 ) (Norman 4,878,529), sheet 1 of 3).
The typical industry system consists of a hallow or solid steel 1" or 11/4" shaft. A
torsion spring or springs, slide onto the shaft and one is bolted to a spring mount bracket, which in turn is affixed to a lentil of some sort. Cable drums slide onto said shaft one left, one right, followed by end bearing plates which are bolted directly to the horizontal track, and sometimes lagged or welded to the lentil.
The steel cable runs vertically astride the door and behind the vertical track up to the cable drum. Set screws hold the drum to the shaft, and a pair of gripping pliers clamped to the shaft is wedged against the lentil in order to keep the steel cable taught.
The opposite cable drum is set by similar means.
I The torsion spring or springs, are wound I generally speaking with steel bars, that insert into the winding cone threaded into the torsion spring. When enough energy has been stored to counter balance the weight of the door, set crews in the winding cone are tightened to lock the spring effectively to the shaft.
The top brackets greatly vary in accordance to lentil heights. A top bracket fracture is attached to the end styles and usually as high as possible on the panel, so as to keep the top edge as low as possible to the track.
A typical top bracket Fucture used in conjunction with standard lift components generally place the upper edge of the panel above the horizontal track in the open section.
As the door begins to open, the upper most point of the top panel rotates around the curve radius of the horizontal track (4,095,641 Olson). At a specified point, depending on the curve radius 10", 12", or 15" will achieve a maximum height above the horizontal track 132. Variables occur with different thicknesses of door panels and door height. Lentil heights above the highest point of the top section in the down position, directly correlate to feasible usage of standard top brackets and hinge number components.
Typically and generally speaking as the door height increases so will the height of the sections above the horizontal track.
Industry standard hinges increase in the height starting with a no. 1 for 2" track and no. 2 or 3 with 3" track up to no. 9 hinge respectively. (J.P> Holland 3, 484, 812, 2 sheets, sheet 2). The higher the hinge no.
the further the top bracket roller is away from the section in order to keep the door face flush with the door jam and lentil.
This can be extrapolated as the horizontal curve axes differential. (A point space were by the upper most position of the top section passes through on the curve radius) above the horizontal track (D).
Lentils, beams or other obstructions below the horizontal curve axes differential create significant installation problems, and increase from problematic to impossible as these ratios decrease ( 182).
A number of devices have been invented to overcome the problems associated with horizontal curve axes differential. The most popular and current industry standard is the use of a separate track just for the top roller while the 15" horizontal below engages the rollers of the remaining sections (4,878,529 Horman). This second track enables the use of a short top bracket and provides immediate movement away from the cable drum and spring assembly.
Additionally, special bottom brackets are used to attach the cable on the outside of the vertical and horizontal track (Horman) and generally run diagonally back around a sheave pulley and to the cable drum, also positioned on the outside of the horizontal track. Clearly this arrangement is very dangerous with the use of an automatic operator since it is possible for a person to become entrapped between the cable and bottom bracket as the door is activated to an open position., In addition, should a cable break, or the bottom bracket detach from the bottom section a sling shot projectile can result causing injury or death.
This normally is prevented in standard lift arrangements since the cable runs behind the vertical track and steel shaft of the rollers. Generally and most often cost is also greatly increased with the use of 3"
track and is reflected exponentially as the door height increases.
A top bracket fixture that works in conjunction with the standard lift arrangement, clearly is an advancement over the last embodiment. Safety, cost and flexibility to adapt a standard lift arrangement in the field to a low headroom application are very desirable features. One such attempt is Olson 4,095,641. However, it don'ts address a number of circumstances. Clearly as illustrated in Fig.
9, this invention places the upper most portion of the top section quite high on the horizontal curve axis differential, thus restricting optional performance and increasing lentil height requirements with the use of a draw bar automatic door operator.
Additionally, this device like all other embodiments, attempts to force the upper section around the horizontal curve radius by a quick turn action from open to close in one continuous movement. Installation is also difficult due to precise placement of the fixture Fig. 5 and complicated location of the clip attachment Fig. 6.
., SUMMARY OF INVENTION
This invention solves the problems directly associated in the prior art simply by allowing the top section to independently tip inwards, before there is any upward mount torsion spring assembly and draw bar automatic operator, with limited headroom. Particular attention has been said to simplifying installation and elimination of unnecessary modifications and adjustments.
THE INVENTION
This invention related directly to hinge connected sectional doors, and low lentil heights. It is common place knowledge that industry standard door panel range in width from 19, 21 to 24 inches respectively.
These doors, when installed with a front mount torsion spring assembly, typically require 12" to 15" of headroom depending whether the horizontal track is of 12 or 15 inch curve radius. Lentil heights below thesespecifications greatly inhibit the use of the industry standard track systems.
Problematic to impossible installations occur as lintel heights decrease.
PRIOR ART
An overhead door is comprised of sectionally connected panels, which may be manufactured from steel, aluminum, viny, fibreglass, and wood. Typically they can be insulated or non-insulated. Panels typically measure in width 19", 21" or 24". When stacked into a building or truck opening, various heights may be achieved.
Hardware requirements are as follows.
Industry standard hinges are affixed between door sections as cited, (J.P>
Holland 3,484,812, 2 sheets, sheet 1). A
bottom bracket is attached to the end styles of the lowest section and provide an attachment for a steel cable, which in turn is connected to a counter balance system.
(A. V. Rowe 2289045, 3 sheets, sheet 1 ) (Norman 4,878,529), sheet 1 of 3).
The typical industry system consists of a hallow or solid steel 1" or 11/4" shaft. A
torsion spring or springs, slide onto the shaft and one is bolted to a spring mount bracket, which in turn is affixed to a lentil of some sort. Cable drums slide onto said shaft one left, one right, followed by end bearing plates which are bolted directly to the horizontal track, and sometimes lagged or welded to the lentil.
The steel cable runs vertically astride the door and behind the vertical track up to the cable drum. Set screws hold the drum to the shaft, and a pair of gripping pliers clamped to the shaft is wedged against the lentil in order to keep the steel cable taught.
The opposite cable drum is set by similar means.
I The torsion spring or springs, are wound I generally speaking with steel bars, that insert into the winding cone threaded into the torsion spring. When enough energy has been stored to counter balance the weight of the door, set crews in the winding cone are tightened to lock the spring effectively to the shaft.
The top brackets greatly vary in accordance to lentil heights. A top bracket fracture is attached to the end styles and usually as high as possible on the panel, so as to keep the top edge as low as possible to the track.
A typical top bracket Fucture used in conjunction with standard lift components generally place the upper edge of the panel above the horizontal track in the open section.
As the door begins to open, the upper most point of the top panel rotates around the curve radius of the horizontal track (4,095,641 Olson). At a specified point, depending on the curve radius 10", 12", or 15" will achieve a maximum height above the horizontal track 132. Variables occur with different thicknesses of door panels and door height. Lentil heights above the highest point of the top section in the down position, directly correlate to feasible usage of standard top brackets and hinge number components.
Typically and generally speaking as the door height increases so will the height of the sections above the horizontal track.
Industry standard hinges increase in the height starting with a no. 1 for 2" track and no. 2 or 3 with 3" track up to no. 9 hinge respectively. (J.P> Holland 3, 484, 812, 2 sheets, sheet 2). The higher the hinge no.
the further the top bracket roller is away from the section in order to keep the door face flush with the door jam and lentil.
This can be extrapolated as the horizontal curve axes differential. (A point space were by the upper most position of the top section passes through on the curve radius) above the horizontal track (D).
Lentils, beams or other obstructions below the horizontal curve axes differential create significant installation problems, and increase from problematic to impossible as these ratios decrease ( 182).
A number of devices have been invented to overcome the problems associated with horizontal curve axes differential. The most popular and current industry standard is the use of a separate track just for the top roller while the 15" horizontal below engages the rollers of the remaining sections (4,878,529 Horman). This second track enables the use of a short top bracket and provides immediate movement away from the cable drum and spring assembly.
Additionally, special bottom brackets are used to attach the cable on the outside of the vertical and horizontal track (Horman) and generally run diagonally back around a sheave pulley and to the cable drum, also positioned on the outside of the horizontal track. Clearly this arrangement is very dangerous with the use of an automatic operator since it is possible for a person to become entrapped between the cable and bottom bracket as the door is activated to an open position., In addition, should a cable break, or the bottom bracket detach from the bottom section a sling shot projectile can result causing injury or death.
This normally is prevented in standard lift arrangements since the cable runs behind the vertical track and steel shaft of the rollers. Generally and most often cost is also greatly increased with the use of 3"
track and is reflected exponentially as the door height increases.
A top bracket fixture that works in conjunction with the standard lift arrangement, clearly is an advancement over the last embodiment. Safety, cost and flexibility to adapt a standard lift arrangement in the field to a low headroom application are very desirable features. One such attempt is Olson 4,095,641. However, it don'ts address a number of circumstances. Clearly as illustrated in Fig.
9, this invention places the upper most portion of the top section quite high on the horizontal curve axis differential, thus restricting optional performance and increasing lentil height requirements with the use of a draw bar automatic door operator.
Additionally, this device like all other embodiments, attempts to force the upper section around the horizontal curve radius by a quick turn action from open to close in one continuous movement. Installation is also difficult due to precise placement of the fixture Fig. 5 and complicated location of the clip attachment Fig. 6.
., SUMMARY OF INVENTION
This invention solves the problems directly associated in the prior art simply by allowing the top section to independently tip inwards, before there is any upward mount torsion spring assembly and draw bar automatic operator, with limited headroom. Particular attention has been said to simplifying installation and elimination of unnecessary modifications and adjustments.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2302930 CA2302930A1 (en) | 2000-03-06 | 2000-03-06 | Low headroom bracket device for sectional overhead door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2302930 CA2302930A1 (en) | 2000-03-06 | 2000-03-06 | Low headroom bracket device for sectional overhead door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2302930A1 true CA2302930A1 (en) | 2001-09-06 |
Family
ID=4165701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2302930 Abandoned CA2302930A1 (en) | 2000-03-06 | 2000-03-06 | Low headroom bracket device for sectional overhead door |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2302930A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681088A (en) * | 2018-12-22 | 2019-04-26 | 昆明海顿自动门业有限公司 | A kind of production and turnover panel garage door easy for installation |
-
2000
- 2000-03-06 CA CA 2302930 patent/CA2302930A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681088A (en) * | 2018-12-22 | 2019-04-26 | 昆明海顿自动门业有限公司 | A kind of production and turnover panel garage door easy for installation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |