WO2022099146A1 - A winding device - Google Patents
A winding device Download PDFInfo
- Publication number
- WO2022099146A1 WO2022099146A1 PCT/US2021/058477 US2021058477W WO2022099146A1 WO 2022099146 A1 WO2022099146 A1 WO 2022099146A1 US 2021058477 W US2021058477 W US 2021058477W WO 2022099146 A1 WO2022099146 A1 WO 2022099146A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- winding device
- ring gear
- hole
- flange portion
- worm gear
- Prior art date
Links
- 238000004804 winding Methods 0.000 title claims abstract description 116
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 101000606504 Drosophila melanogaster Tyrosine-protein kinase-like otk Proteins 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 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
- 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
- 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
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
- E05F15/681—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts
- E05F15/686—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts by cables or ropes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
- E05Y2201/47—Springs; Spring tensioners
- E05Y2201/492—Spring tensioners, tension sensors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/60—Suspension or transmission members; Accessories therefore
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/644—Flexible elongated pulling elements; Members cooperating with flexible elongated pulling elements
- E05Y2201/654—Cables
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- 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
Definitions
- the present invention relates to the control the elastic energy of a spring system, whose function is tightening, or releasing of said spring, especially for a torsion spring for lifting a sectional garage door, or overhead door.
- torsion springs used in combination with a garage door include a coil portion and a central axis, about which the coil portion is wound.
- a central shaft is disposed along the central axis of the torsion spring, with the spring being wound around the shaft.
- One end of the spring is fixed with a stationary cone, which is secured by a plate to an anchoring point, such as a wall.
- the other end of the spring fixed with a winding cone, which is wound until there is sufficient torque, and subsequently secured to the central shaft.
- Each end of the central shaft is pivotally supported by a support bracket, or an angle plate secured to the wall.
- a torsion spring stores energy when wound, with that energy being transferred to cables attached to the spring and to the bottom of a garage door, such that the cables can balance the weight of the garage door in opening and closing. If a torsion spring breaks, a garage door will likely not function correctly, either by becoming incapacitated, or by opening asymmetrically and being off-track.
- US2020/0290188 shows prior art, which allows an operator to use an electric drill of driver to turn a worm gear and then drive an engaged ring gear which is temporally attached to the spring.
- the ring gear has two split sections which are put together to surround the shaft and fixed with a winding cone which has been fixed the winding end of the spring already. Since it has two split ring gear sections, it is still too complicated for manufacturing and assembling.
- a winding device for adjusting the elastic storage of an overhead door spring system installed on a wall structure the door having at least a door panel which can be moved up and down constrained within a track.
- the door also has an elastic storage system with a coil spring having a stationary end and a winding end.
- the door system also has a central shaft held within the elastic storage system.
- the winding device has a ring gear with a flange portion, a worm gear engaged by the ring gear, a box or container or a retainer to hold the ring gear and worm gear together in an engagement status with the ring gear engaged with the central shaft by a fastener.
- FIG. 1 shows isometric view of the preferred embodiment of the present invention, an winding device is installed with a door system with a live shaft;
- Fig. 2 shows isometric view of the bottom corner of the bottom panel and shows how the cable and roller are fitted with the bottom bracket;
- FIG. 3 shows how the spring is installed with the central shaft and with the bracket (wall);
- Fig. 4 shows the details about how the present invention is installed with the rod;
- Fig. 5 shows the general isometric view of the preferred embodiment of the present invention;
- FIG. 6 shows the inside structures of the preferred embodiment
- Fig. 7 shows the main body of the box, or retainer
- FIG. 8 and 9 show the situation when the preferred embodiment of the present invention is installed with a door system with a dead shaft;
- FIG. 10 through 12 show the situation when the preferred embodiment of the present invention is installed with a door system with a hollow live shaft;
- Fig. 13 shows the third embodiment of the present invention.
- FIG. 14 through 16 and 22 show the fourth embodiment of the present invention.
- FIG. 17 and 18 show the fifth embodiment of the present invention.
- Fig. 19 and 20 show the sixth embodiment of the present invention.
- Fig. 21 shows a variation from the preferred embodiment, which uses a spur gear as a ring gear, and the center line of the worm gear is tilted with a small angle compared with that in the preferred embodiment.
- a global Cartesian coordinate system X-Y-Z is established as shown at Fig. 1 .
- both U-shaped tracks 22 are mounted to a wall 20 through a bracket 24 (a vertical portion of the track on the right is hidden for better illustration of the cable).
- a bottom panel of door 30 has an angle plate 32 (Fig. 2) with a cable stud 36 on the panel’s side face.
- a roller 34 with a short shaft 38 is mounted on a front face of door 30 at its bottom location through a bracket 33.
- This door panel and other panels which are connected with each other by hinges can be moved up and down through the rollers moving along the u-shaped track 22, and is guided to turn about 90 degrees then is moved in -Y direction through the horizontal portion of u-shaped track 22.
- a central shaft 60 is mounted oriented in X direction by brackets 52 and bearings 54 (Fig. 4) on both ends and through fasteners 55.
- At least one spring unit 40 connects the wall 20 and the central shaft 60.
- the first end, or stationary end of spring unit 40 has the first end of spring body 42 fixed with stationary cone 44 which is fixed to wall 20 through bracket 53 and fasteners 45 (Fig. 3).
- the second end, or winding end of spring unit 40 has the second end of spring body 42 fixed with a winding cone 46, and said winding cone 46 is fixed with central shaft 60 through fastener, or set screw 47.
- the winding end of 40 is better to be adjusted by being moved away along the shaft from its stationary end for some distance. This is called relax length, and it is because when the spring body 42 is wound usually in the direction that makes the spring diameter smaller and nominal length (from stationary end to winding end) longer. This distance is usually a little bit bigger than the amount equals to the product of rounds to be wound times the wire diameter of the spring.
- winding device 10 is applied to a door with single spring, or two or more identical springs all on one side (left or right) to the brackets they anchored to, and if without adjustment depicted at last paragraph, when the spring is wound, it will drive the central shaft in the direction from the stationary end of a spring to its winding end for the distance equals to the product of rounds to be wound times the wire diameter (assuming the spring is manufactured in the way that each adjacent coil has zero gap from each other), if no object blocks this movement.
- a drum 56 through its extension 58 is slidingly attached to central shaft 60 without tightening fasteners 59.
- Said drum 56 also has a notch 57 to hold the upper end fitting 72 of a cable 70, whose lower end fitting 74 is fixed with cable stud 36 at the lower end of panel of door 30.
- FIG. 5 The present invention of an winding device 10 is shown at Fig. 5 through Fig. 7 with a local coordinate system x1-y1-z1 as shown at Fig. 5.
- Said 10 winding device has a main box, or retainer 82 with a base body 83 having a first hole, or main aperture 84 having a center line collinear with x1 , which would be also collinear with X direction when 10 winding device is installed with central shaft 60.
- Said base body 83 also has at least one, but usually two spacer portions 85 with second hole 19 whose center line parallel to y1 and usually perpendicular to center line of main aperture 84, and a plurality of third holes 25 parallel to x1.
- a ring gear 12 has an extension 13 in x1 direction and a hole 18 in x1 direction passing through 12 including extension 13.
- Ring gear 12 also has helical teeth 15 in its periphery edge, and extension 13 has at least one thread hole 11 generally perpendicular to x1 .
- a worm gear 14 has spinal-shaped teeth 15, and an extension portion 16 usually on its each side.
- Extension portion 16 has a hex-shaped stud 17 usually on its each end, but at least on one end.
- Extension portion 16 pivotally engages with second hole 19.
- a cover 27 holds ring gear 12 and worm gear 14 within the chamber formed by base body 83.
- Said cover 27 has a first hole 28 and a plurality of second holes 29 for matching third holes 25.
- Worm gear 14 is restrained by base body 83, through both extension portion 16 being restrained by both second holes 19.
- the periphery face of extension 13 also pivotally engages with main aperture 84 of base body 83 on one end and engages first hole 28 of cover 27 on the other end.
- a plurality of fasteners 26 pass through second holes 29, third holes 25 for holding cover 27 and base body 83 together and keeping engagement between ring gear 12 and worm gear 14 within the chamber of base body 83.
- ring gear 12 and worm gear 14, 14b is engaged with each other in the conventional engagement manner of a ring gear and a worm gear.
- the central shaft 60 has not mechanical communication with cable stud 36 yet, usually by keeping fastener 59 loose to let drum 56 free for rotation around central shaft 60, or by disconnecting either upper end fitting 72 of cable 70 from notch 57, or lower end fitting 74 of cable 70 from cable stud 36.
- a driver usually an automatic screw driver, or electric drill with an appropriate socket is used to engage said hex-shaped stud 17 then is driven usually in the direction leading to central shaft 60 to turn in -X direction (right hand rule). Since the stationary end of spring unit 40 is fixed with wall, and its winding end is fixed with central shaft 60, and one edge of said base body 83, usually its bottom edge close to the wall, is then propelled in +X direction to touch the wall, which provides grounding for turning 12 and central shaft 60 in -X direction. This turning will tighten all said springs fixed with the central shaft and store energy to the counterbalancing system simultaneously.
- drums 56 After storing energy to the spring, with confirmation that upper end fitting 72 of cable 70 is connected with notch 57, and lower end fitting 74 of cable 70 is connected with cable stud 36, then said drums 56 is turned a little bit in +X direction to overcome free play of cable 70 until it is reasonably tightened, then drum 56 is fixed fully with central shaft 60 by tightening fasteners 59.
- spring unit 40 needs to be dismantled from central shaft 60 for repairing or maintenance of an existing door system, said 10 winding device is installed with central shaft 60 as same as described above, then fasteners 59 are released, then said 17 is turned in the direction which turns central shaft 60 in +X direction until spring unit 40 is fully released to neutral status. Then the spring is safe to be removed, or handled for other purposes.
- the present invention 10 winding device winds the central shaft which winds all springs together attached to this shaft, and most important is that because it is received by an end of the shaft, and is attached with one end of the shaft (and the central shaft is fixed with the winding ends of all the spring), therefore it has an intact, or integral one-piece ring gear, leading to much easier and reliable installation and engagement, which saves manufacturing and installation costs and minimizes failure risks.
- a significant percentage of overhead doors for trailer truck has a counterbalancing system with a dead axle, or central shaft. This shaft just keeps static when the door is being opened or closed.
- this dead shaft just keeps the springs usually oriented in cross car direction, but doesn’t transmit torque between spring and the plugs, which is similar to the drums in above paragraphs.
- FIG. 8 and Fig. 9 show the configuration of a counterbalancing system with a dead central shaft.
- a central bracket 153 which is fixed with wall 20, pivotally holds the shaft 160 at its middle portion.
- a spring unit 140 has a main body 142, a plug 156, and a winding cone 146 having a lock screw 147, which fixes winding cone 146 and shaft 160 together. Plug 156 just engages shaft 160 pivotally and it is linked to cable stud 36 by cable 70.
- This kind of system usually has two symmetrical spring units 140, one for holding the right end, and the other for the left end of the door.
- the present invention 10 winding device is engaged with one end of shaft 160 just the same as described above, then hex-shaped stud 17 is turned, which turns 12 and shaft 160, which turns winding cone 146 in +X direction. Since plug 156 is held by cable stud 36 through cable 70, turning of winding cone 146 with respect to plug 156 just tightens 140 and stores elastic energy to it.
- a ratchet, or a one way clutch can substitute for lock screw 151 .
- the one-way clutch is fixed with central bracket 153. It allows shaft 160 to be turned in one way, or in +X direction in this case, but holds it when it tries to turn back in -X direction.
- FIG. 10 shows the situation of a variation of counterbalancing system with live shaft, which is named external shaft for covering the spring within.
- This counterbalancing system has a shaft plug assembly 170 having a hollow shaft 172 whose section cut shape is non-circular connecting one plug 174 by a fastener 176 at each end symmetrically.
- a spring assembly 180 has a spring 182 with its inboard end being fixed with a fitting 186 having a portion with a section cut shape of non-circular 187, and its outboard end fixed with adjustment stud 184. With its nor-circular shape, fitting 186 cannot be turned around X direction with respect to hollow shaft 172, but can be slid in and out freely.
- each said spring assembly 180 is inserted into shaft plug assembly 170 from both left and right end with stud 184 staying outboard and protruding out from shaft plug assembly 170, the shank portion of 184 is held by a hole 192 of support bracket 190. Said hole 192’s center line is collinear to X.
- the notch 175 on plug 174 is connected with cable stud 36 of the door 30 by cable 70 for building mechanical communication between 180 and door 30, then 10 winding device is fixed with stud 184 fully, then hex-shaped stud 17 is turned for winding spring assembly 180 in +X direction for storing energy, then fastener 194 fixes stud 184 with support bracket 190, then 10 winding device can be removed away.
- Fig. 12 shows the section cut along X coordinate.
- Hollow shaft 172 in this application is not just a decorative part but a functional part serving as a shaft connecting two plugs together, and additionally also protects the springs within its hollow shape.
- this connecting means can either be a through shaft, or just a short extension protruded out of the outboard end of said spring and out of the one end the external shaft.
- This short extension is named adjustment stud above.
- the center through hole of the ring gear of the winding device 10 is received by and engaged with the connecting means of the spring of the counterbalancing system of an overhead door system, and the box of the winding device 10 abuts the wall with which said door is installed, then the winding device is ready for adjustment of the elastic energy of the spring.
- the second embodiment of the present invention 10 winding device can has three lock screw fasteners 89, 89’, 89” distributed evenly in 360 degrees, or being 120 degrees apart from each other. [0071 ] Since these screws are close to the wall 20 and the bracket 52, the screw being closest to wall 20 may not be accessible easily due to limited space available for turning that screw, but the other two are usually accessible.
- an accessible first one (fastener 89) is selected and tighten very slightly with a torque amount of T, but with feeling surely that the bottom of the screw touches the shaft, meaning that there is no obvious free play normally (in a direction perpendicular to X coordinate) between 12 and central shaft 60, but meantime 10 winding device can be removed out along X coordinate from central shaft 60 for full disengagement from central shaft 60; then the second one (fastener 89’), which is the most accessible of the other two, is tightened with a torque amount of T2 usually equaling to 2-100 times of T; then hex-shaped stud 17 is turned leading to turn 12 to an angle usually of 45-180 degrees, the original hardest accessible one, or the third one (fastener 89”) is accessible easily, is then tightened with a torque amount of T3 usually equaling to 2-100 times of T2.
- the shaft and the spring can be wound in an arbitrary angle, with no difficulty for removing 10 winding device out from central shaft 60 after installation.
- the third embodiment of winding device 310 has a box, or retainer 311 for substitution of main box/retainer 82 of as discussed above.
- Said retainer 311 usually has an identical front plate 312 and back plate 314 (front plate 312 is hidden for illustration of other parts), with both having a main hole 318 similar to first hole 28 and a plurality of secondary holes 319 (Fig.
- two spacers 320 each has a first through hole 322 with center line parallel to y1 for receiving extension portion 16 of 14 on both ends, and at least one second through hole 325 with center line parallel to x1.
- At least one fastener 326 at each end holds front plate 312, spacer 320 and back plate 314 together.
- ring gear 12 is usually a helical gear.
- Fig. 21 shows a variation from the third embodiment, which uses a spur gear 12b as a ring gear.
- Spur gear 12b is a gear wheel with radical teeth parallel to its axis, or x1 in this case, which can save manufacturing cost compared with a helical gear.
- the center line y1 ’ of a worm gear 114 is not perpendicular to x1 , or collinear to y1 anymore, but has a small angle a with y1 .
- the center line y1” of corresponding first hole 322b of spacer 320b (not shown) needs to have an angle a with respect to y1 as well, which holds yT collinear with y1”.
- the fourth embodiment of the winding device 410 can accommodate two shaft sizes, usually for that of status one with a diameter of one inch and status two of 1 .25 inches.
- Fig. 14 is an exploded and section cut view and shows the status one for working together with a smaller shaft.
- This fourth embodiment has two collars 413 for sandwiching a ring gear 412.
- Said collar 413 has a center hole 413a, a plurality of lateral through holes 413b, and recession 413c which is formed in collar 413 in a collar edge portion 413a.
- Said sleeve 430 has an opening gap 431 , and a plurality of protrusion 433 at each circular edge, and there are plurality of C-shaped openings 432 at each circular edge too.
- each ring plate 440 presses outface 413e of collar 413, leading to that two ring plate 440 sandwich two collars 413 and one ring gear 412 together, then a bolt 472 passes hole 442, 413b, a hole 412b (not shown) in ring gear 412, another 413b’ and hole 442’, then they are locked by a nut 474, with notch 444 being engaged with protrusion 433.
- sleeve 430 can neither be moved out from the rest of winding device 410, nor be turned with respect to the rest of winding device 410.
- a cross key 450 has a cross shape in section cut.
- Said cross key 450 has an out protrusion 452, an in protrusion 454, and two side protrusions 456.
- Said out protrusion 452 is engaged with 413c, with both side protrusions 456 being covered by opening gap 431 , and with in protrusion 454 entering within the circular contour of column-shaped aperture 434 of sleeve 430.
- Said in protrusion 454 is to be engaged with a key opening channel 462 (not shown) of a typical shaft 460 with C-shaped section cut (not shown) for a heavy garage door. This shaft usually has a nominal diameter of one inch in US.
- Fig. 22 shows clearly how sleeve 430, 450 and 413c work together with ring plate 440 hidden.
- Said c-shaped opening 432 yields, or opens a space for fastener 89 to pass through collar 413 to press the shaft 460 for holding winding device 410 and the shaft 460 together as in the same way shown at above embodiments.
- said winding device 410 can turn shaft 460 with a higher torque without slippage.
- FIG. 17 shows the status two of winding device 410 when it is to be worked together with a bigger shaft 460b (not shown).
- a bigger shaft 460b (not shown).
- ring plate 440, cross key 450, and sleeve 430 are removed away, but a straight key 450b can be added for engaging 413c and an opening channel (not shown) of a bigger shaft with C-shaped section cut (not shown) together.
- Bigger shaft usually has a nominal diameter of 1 .25 inch in US.
- the fifth embodiment of a winding device 510 also shown in Fig. 17 has a first extension plate 520 with usually at least two holes 522, and an second extension plate 530 with usually at least two holes 532 (not shown, but they are similar to hole 522). At least two holes 522 are received by at least two fasteners 326 which is at the bottom portion of the main body of winding device 510 , and at least two holes 532 are received by at least two fasteners 326 at the top portion of main body of winding device 510.
- said first extension plate 520 can provide a longer arm in providing a larger torque to turn the shaft 460.
- Fig. 18 shows how winding device 510 is installed with shaft 460 for a live shaft application.
- shaft 460 is turned in -X direction, and said winding device 510 provides supporting torque M1 to shaft 460 in -X direction to balance gradually stronger resistance torque M2 in spring unit 40 which tries to turn shaft 460 in +X direction.
- M2 In normal situation of winding M2 equals to -M1. If during the winding time, the counterbalancing system suddenly fails, such as the spring unit 40 is broken leading to no M2 anymore, then winding device 510 and shaft 460 is driven by M1 to turn in -X direction.
- first extension plate 520 is suddenly turned in -X for more than 180 degree in a dangerous manner until an original bottom edge of first extension plate 520 touches wall 20 at a location above shaft 460.
- second extension plate 530 and when the counterbalance system fails suddenly, the top edge of second extension plate 530 will touch the wall quickly then stop turning of winding device 510 in a much smaller angle, such as within 30 degrees.
- the sixth embodiment of a winding device 610 is shown at Fig. 19.
- Said winding device 610 is a dual-stage winding device having two sets of worm gear mechanisms working together. Similar to the previously embodiments, the primary stage has a first worm gear 614 engaged with first ring gear 612 both within a first box, or retainer 611 which is similar to retainer 311.
- Said retainer 611 has a front plate 618 (not shown) and a back plate 616 sandwiching spacers 620 which is similar to spacer 320.
- a secondary back plate 652 is connected with one of the spacers 620.
- a secondary front plate 654 (not shown) together with secondary back plate 652 sandwich two secondary spacer 660 to form a secondary box, or retainer 671 ,
- a secondary ring gear 672 is formed on, or connected by one end of first worm gear 614, which renders the center line of secondary ring gear 672 collinear with that of first worm gear 614.
- Said secondary box, or retainer 671 keeps a secondary worm gear 674 engaged with secondary ring gear 672.
- a door system with a live shaft has winding device 610 engaged with central shaft 60 by locking screw 615 with central shaft 60.
- Said winding device 610 also has an extension bar 682 with its bottom leaning on wall 20.
- Said extension bar 682 is oriented in y1 direction, and generally parallel to Z direction. The bottom of 682 is much lower than central shaft 60, and the top of 682 is obviously higher than central shaft 60.
- the extension stud 677 of secondary worm gear 674 is turned in one direction, said central shaft 60 is turned in -X direction for storing energy to spring unit 40. Connection between a drum and the door by a cable is pretty much the same as that in the preferred embodiment. If in case the counterbalancing system fails, the top end of extension bar 682 plays the same role as second extension plate 530 as in the last embodiment.
- this winding device can provide a higher transmission ratio for lifting a heavier door.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21890247.6A EP4240931A1 (en) | 2020-11-06 | 2021-11-08 | A winding device |
AU2021373059A AU2021373059A1 (en) | 2020-11-06 | 2021-11-08 | A winding device |
CN202180075444.XA CN116761925A (en) | 2020-11-06 | 2021-11-08 | Winding device |
US18/216,006 US20240026720A1 (en) | 2020-11-06 | 2023-06-29 | Winding device and methods |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US202063110834P | 2020-11-06 | 2020-11-06 | |
US63/110,834 | 2020-11-06 |
Related Parent Applications (1)
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US202318196768A Continuation-In-Part | 2020-11-06 | 2023-05-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/216,006 Continuation-In-Part US20240026720A1 (en) | 2020-11-06 | 2023-06-29 | Winding device and methods |
Publications (1)
Publication Number | Publication Date |
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WO2022099146A1 true WO2022099146A1 (en) | 2022-05-12 |
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ID=81456733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2021/058477 WO2022099146A1 (en) | 2020-11-06 | 2021-11-08 | A winding device |
Country Status (4)
Country | Link |
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EP (1) | EP4240931A1 (en) |
CN (1) | CN116761925A (en) |
AU (1) | AU2021373059A1 (en) |
WO (1) | WO2022099146A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4981165A (en) * | 1989-04-11 | 1991-01-01 | Millco Products, Inc. | Spring adjustment device for overhead doors |
US20050189080A1 (en) * | 2004-02-26 | 2005-09-01 | Wayne-Dalton Corp. | Tensioning tool for a counterbalance system for sectional doors |
US20120125545A1 (en) * | 2010-11-22 | 2012-05-24 | Ehrlich Rodney P | Hinged bottom roller assembly and counterbalance mechanism for overhead door |
US20200347657A1 (en) * | 2019-04-30 | 2020-11-05 | Schlage Lock Company Llc | Door closer adjustment mechanism |
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2021
- 2021-11-08 EP EP21890247.6A patent/EP4240931A1/en active Pending
- 2021-11-08 AU AU2021373059A patent/AU2021373059A1/en active Pending
- 2021-11-08 CN CN202180075444.XA patent/CN116761925A/en active Pending
- 2021-11-08 WO PCT/US2021/058477 patent/WO2022099146A1/en active Application Filing
Patent Citations (4)
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US4981165A (en) * | 1989-04-11 | 1991-01-01 | Millco Products, Inc. | Spring adjustment device for overhead doors |
US20050189080A1 (en) * | 2004-02-26 | 2005-09-01 | Wayne-Dalton Corp. | Tensioning tool for a counterbalance system for sectional doors |
US20120125545A1 (en) * | 2010-11-22 | 2012-05-24 | Ehrlich Rodney P | Hinged bottom roller assembly and counterbalance mechanism for overhead door |
US20200347657A1 (en) * | 2019-04-30 | 2020-11-05 | Schlage Lock Company Llc | Door closer adjustment mechanism |
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AU2021373059A1 (en) | 2023-06-29 |
CN116761925A (en) | 2023-09-15 |
EP4240931A1 (en) | 2023-09-13 |
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