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WO2016191450A1 - Système de commande pour portes, grilles et fenêtres à rétablissement automatique - Google Patents

Système de commande pour portes, grilles et fenêtres à rétablissement automatique Download PDF

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Publication number
WO2016191450A1
WO2016191450A1 PCT/US2016/034010 US2016034010W WO2016191450A1 WO 2016191450 A1 WO2016191450 A1 WO 2016191450A1 US 2016034010 W US2016034010 W US 2016034010W WO 2016191450 A1 WO2016191450 A1 WO 2016191450A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
pivot
torsion
hung door
torque
Prior art date
Application number
PCT/US2016/034010
Other languages
English (en)
Inventor
Mark A. Beran
Original Assignee
Beran Mark A
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
Priority claimed from US15/097,147 external-priority patent/US20170292308A1/en
Application filed by Beran Mark A filed Critical Beran Mark A
Publication of WO2016191450A1 publication Critical patent/WO2016191450A1/fr

Links

Classifications

    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/123—Mechanisms in the shape of hinges or pivots, operated by springs with a torsion bar
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/14—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with fluid brakes of the rotary type
    • 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

  • the purpose of this invention is to teach a new and novel means of controlling the motion of a self-opening or self- closing pivot hung door, gate or window by means of an apparatus that is disposed within the door, gate or window, connected to the structure surrounding the door only at the pivots; consisting of discrete, serially disposed, field replaceable units that provide the functions of energy storage, energy dissipation, and torque modulation.
  • Patent 5,572,768 P, Daul teaches a rotary friction damper in a device, external to the door, such as a hinge, for connecting a door to an adjacent structure, including a helical spring operatively connected to the door and the structure.
  • Patent 5,787,549 P Soderlund
  • the hinge system included first and second torsion rods fixed directly to the hinged element and to the base.
  • Patent 7,195,300 Austin, teaches an automotive tailgate hinge assembly that counterbalances the weight of the tailgate storing energy in a torsion bar connected at one end to the tailgate and at the other end directly connected to the frame of the automobile.
  • Patent 7,219,391 B1 Luca, teaches a door assembly and a door closer arranged and constructed so as to be wholly concealed within the associated door.
  • the apparatus consists of a standard piston or rack and pinion style door closer disposed within the upper or lower hollow door rail and an arm connected at one end to the piston of the door closer. The arm protrudes through the pivot side door edge to receive a mounting bracket attached to the door jamb.
  • Patent 8,732,094 B2 Busch, teaches a cam based hydraulic door closer with a helical spring for energy storage. Busch delineates non-linear torque vs door angular displacement relationships that are typical for door closer applications.
  • This invention relates to the field of commercial, industrial and residential swing doors, gates and windows that rotate about a pivot axis.
  • the invention is applicable to pivot hung doors that are displaced in one direction and
  • the current invention overcomes inherent limitations of the existing art for doors that are self-closing, including those that rely on surface mounted door closers that are operatively engaged by means of external connecting arms, slide tracks, or both.
  • the complete concealment of the control system of the current invention offers benefits of cost, safety, security, ease of installation and improved aesthetics over the existing art.
  • Patent 5,572,768 P, Daul teaches a helical spring and friction device contained in a door hinge. This invention is limited in the magnitude of the torque that can be transferred to the door. Also, the angular displacement at the spring is identical to that of the door and this relationship can not be altered. The use of this invention for pivot mounted doors is not taught.
  • Patent 5,787,549 P Soderlund teaches the use of a torsion bar in the hinge to replace the helical spring taught by Daul and is also not applicable to pivot mounted doors.
  • Patent 7,219,391 B1 , Luca relies on the offset of the door hinge with respect to the vertical middle plane of the door as a moment arm to cooperate with a piston force and thereby produce a torque on the door.
  • This invention relies on a mechanical connection between the door closer within the door, and the door jamb, and is not applicable to pivot hung doors.
  • door closers are disposed within the door. All of these require an operative connection to the structure around the door.
  • Patent 8,732,094 B2 Busch discloses torque vs. displacement curves that are typical for surface mounted door closers. These curves reveal that the desired torque on the door decreases in a non-linear fashion as the door opens. This contrasts the approximately linearly increasing torque vs door angular displacement that would be inherent if a spring, whether helical or torsion, were connected directly between the door and a fixed reference.
  • Patent 7,195,300 Austin, teaches a counterbalanced tailgate mechanism with a torsion bar mounted between the tailgate at one end and the fixed frame of the automobile at the other end.
  • This system does not provide for a non-linear relationship between the angular displacement of the tailgate and the twist angle of the torsion bar.
  • the fixed relationship between the torsion bar windup and tailgate position limits the quality of the counterbalancing effect of the torsion bar, since perfect balancing of the tailgate would require a sinusoidal increasing torque on the tailgate as it moves from the latched position to the open position.
  • the control system of this invention overcomes the cited limitations of the prior art by means of the serial disposition of a new and novel torsion means and rotary dampener.
  • Elongated torsion means such as torsion bars, disposed within a door, benefiting from the volume of the hollow chamber in the door and not just from the cross sectional area thereof, can deliver large torques at acceptable working stress levels.
  • the invention makes use of torsion bars disposed in door stiles and rails operatively engaged with the door to impart, on the door, a torque that is decreasing in a non-linear fashion as the door is displaced from its nominal position.
  • the invention employs a new and novel rotary dampening device disposed within the door and operatively engaged with said torsion means to provide energy dissipation to control the restorative angular velocity of the door.
  • the invention teaches the apparatus and method of field adjusting the restorative torque on the door in its nominal position using the door as a convenient lever to manually displace the torsion bar to an initialized torque, or angle of twist.
  • control system of this invention provides new and novel improvements over the existing art with the following benefits:
  • control system is entirely concealed within the door and does not require connections to the structure around the door other than at the pivots,
  • said control system provides for easy installation and initialization of the torque on the door in its nominal postion
  • control system provides enhanced safety by the elimination of finger pinch points inherent in hinge and pivot mounted doors.
  • control system provides enhanced security since the hardware, installed within the door, is tamperproof, and
  • said control system can be manufactured to meet the most stringent domestic and foreign guidelines for door safety such as ANSI A156.4. It is an object of this invention to teach a new and novel door control system that is disposed within a hollow cross section of a door that provides all the functionality of an ANSI A156.4 Grade 1 door closer without the necessity of an operative connection, or arm, that is connected between the structure around the door and the door closer.
  • the benefits of this invention are improved efficiency, aesthetics, safety, security, cost, and ease of installation compared to the prior door closer art.
  • FIG. 1 A - Top plan view of the door header indicating Section A-A.
  • Fig. 1 B Section view A-A of door and header.
  • the door is shown in the closed position.
  • the door pivots on the right side and the moving wing rotates out of the page as the door opens.
  • Fig. 1C Detail view, A, of the torque modulator of this invention, disposed within the upper rail and the pivot side stile of the door.
  • Fig. 1 D - Detail view, B shows the preferred location of the rotary dampener of this invention as well as the adjustable bottom pivot of this invention.
  • FIG. 1 E Enlarged perspective view of Detail A.
  • FIG. 2A Front plan view of the alternate embodiment of the invention disposed within the hollow pivot side stile of the door.
  • the pivot side door stile and corresponding pivot side door jamb are shown displaced to the right to reveal the apparatus of this invention.
  • FIG. 2B Top plan view of the alternate embodiment with the door stile and door jamb displaced to the right of their actual position
  • Fig. 2C Detaii view, C, of the torque modulator.
  • Fig. 2D - Detail D enlarged to illustrates the unique cross sections of the door stile and the mating door jamb
  • Fig. 2E Perspective view of Detail C showing the key components of the torque modulator operatively disposed between the fixed header, 10, above the door, and the rotating end of the torsion bar, 45.
  • FIG. 3A Top view of the rotary viscous dampener of this invention, indicating Section B-B.
  • FIG. 3B Section view B-B showing the rotor, 22, and housing, 21 , of the rotary viscous dampener.
  • FIG. 3C Section view C-C indicated in Fig. 3D illustrating the disposition of the rotor in the housing.
  • Fig 3D Side plan view of the rotary viscous dampener of this invention showing sweep and latch adjustment ports and Section C-C.
  • FIG. 3E Perspective view of the rotary viscous dampener of this invention
  • FIG. 4A Exploded view of the adjustable bottom pivot of this invention.
  • Fig. 4C View D - D of the torsion lock plate, 26, of the adjustable bottom pivot
  • Fig. 5A Depicts the restorative torque vs angle of displacement for the main embodiment of this invention.
  • Fig. 5B Depicts the restorative torque vs angle of dispiacement for the alternate embodiment of this invention.
  • the structure of the invention includes a torsion means for storing and controllably releasing potential energy and a dampening means to dissipate, as waste heat, kinetic energy of a moving door.
  • the torsion means consists of an elongated member capable of storing elastic strain energy in torsion, such as a torsion bar, and a torque modulator.
  • the torque modulator defines the
  • the torsion means is disposed in a hollow chamber within the pivot hung door.
  • the torque modulator, 2, of the main embodiment includes a four bar linkage with moving links, 5, 6, and 7, shown in Fig. 1 E.
  • the pivot hung door is the fourth link and is fixed relative to the links 5, 6, and 7. It is well known to those skilled in the art of kinematic synthesis of linkages that any four bar linkage can be equivalently represented by a pair of cams in rolling contact. These cams, one fixed and one moving are derived from the fixed polode and moving poiode of the four bar linkage, respectfully.
  • the torque modulator linkage embodied herein, could equally be embodied by an equivalent system consisting of two cams or two cam shaped pulleys fixedly connected by a cable, belt or chain so as to maintain their relative rolling contact kinematics.
  • Figure 1 A shows a top view of the pivot hung door and indicates Section A-A.
  • the energy storage is accomplished by means of a torsion bar, 1
  • the torsion bar of this invention consists of one or more elongated members suitable for storing elastic strain energy in torsion, disposed in a parallel arrangement an connected at each end with common end plates.
  • multiple elongated members can, for a given length, provide the same torque as a single torsion bar while at the same time
  • the parallel arrangement of multiple torsion bars can optimize energy density while at the same time minimizing the working stresses of the torsion bars.
  • six torsion bars of diameter 0.176 inches working in parallel have a working shear stress 70% lower than that which would exist in a single torsion bar at the same torque and angular displacement, of diameter .55 inches, or 15 mm.
  • a novel feature of this invention is the concealed torque modulator, 2.
  • Detail view A, Figure 1C shows the torque modular, 2 and its connection to the header, 10, or jamb above the pivot hung door by means of the right angle drive, 59, and its connection to the free end of torsion bar, 45, below it, by means of the transfer drive, 60.
  • Fig. 1 E shows a perspective view of the torsion means consisting of:
  • torque transfer drive, 60 of this invention, consisting of parts 48, 49, 50; and torsion bar, 1.
  • the right angle drive, 59 provides the operative connection between the fixed header, 10, and the crank link, 5 of the torque modulator, and includes elements, 3 and 13 which may be circular or cam shaped and either concentrically or eccentrically mounted with respect their axes of rotation, hereinafter cam pulleys, and non endless cable, 4, fixedly attached at each end to one of cam pulleys 3, and 13.
  • the operative profiles of the cam pulleys, whether circular, cam shaped, concentric or eccentric are determined by the specific requirements of the application under consideration.
  • Said non endless cable, 4, may be constructed of rope, wire, belt or braided cable of material to suitable transfer torque from cam puliey to cam pulley.
  • the torque modulator crank link, 5, is fixedly attached to cam pulley, 13, at one end by means of crank shaft, 14, and pivotably constrained to the door at said end.
  • the opposite end thereof is pivotably engaged with one end of coupler link, 6.
  • the opposite end of coupler link, 6, is pivotably engaged with one end of follower link, 7.
  • the opposite end of follower link, 7 rotates about a fixed point on the door and is fixedly attached to cam pulley, 50.
  • the torque transfer drive, 60 provides the operative connection between follower, 7 of the torque modulator, 2, and the free end of the torsion bar, 45, and consists of cam pulleys, 49, and 50, which may be circular with respect to their rotation axis or cam shaped, and non endless cable, 49, fixedly attached at each end to one of cam pulleys 49, and 50.
  • FIG. 1 B the pivot hung door, 58, is shown in the closed or nominal position. As the door opens the latch side edge of the door rotates out of the page as shown. It should be apparent to those skilled in the art that the locations of the torsion means, 2, shown in Detail A and the rotary dampener, 8, shown in Detail B of Fig. 1 D, can be interchanged without altering the function thereof.
  • crank link, 5 which therefore rotates clockwise as viewed in the figure.
  • Each unit of rotation of the crank, 5, results in a unique, non-constant rotation of the follower link, 7 whereby the relative displacement of the follower link, 7 is small at the beginning of the opening cycle and larger at the end of the opening cycle.
  • Coupler link, 6, connects crank link, 5 and follower, 7, and moves in general coplanar motion as it rotates with respect to links 5 and 7.
  • the four bar linkage, 5, 6, 7 serves to decrease the torque in torsion bar, 1 , as the door opens, while the motion of the door itself tends to increase the torque of the torsion bar.
  • the superposition of these motions, as the door opens, results in cable, 48, being taken up by cam pulley, 49, as it is released from cam pulley, 50.
  • the resulting angular displacement at the torsion bar moving end, 45 is larger near the door closed position and smaller near the door open position. As the door moves between these two positions, the angular displacement relationship between the door and the torsion bar varies in a non-iinear fashion with respect to a unit angular displacement of the door itself.
  • each of the cam pulleys described herein could be non-circular in design. This would allow further enhancement of the non-linear relationship between the door rotation and the torsion bar angular displacement. This is possible because the cables are not endless, they are fixedly attached to the cam pulleys, and because the relative angular
  • cam pulleys displacement of the cam pulleys is a limited oscillation and not a continuous rotation.
  • the non-circular cam pulleys would in this case act as cams capable of providing further non-linear enhancement between the door angular
  • a novel feature of this invention is rotary dampener, 8, which provides all of the energy dissipation capability and adjustability of the modern door closer and accomplishes this with a fixed housing element and a pivotably disposed element.
  • the rotary dampener or dashpot selectively dissipates excess energy during the closing cycle of the door and contains at least one field adjustable means to set the magnitude of the energy removed at a specific angle during the door closing cycle.
  • the rotary dampener, shown in Fig. 1 B is disposed near the bottom of the door, mating with adjustable bottom pivot, 9, of this invention on the lower end of the dampener and to the torsion bar, 1 , at the upper end of the dampener.
  • Fig. 3D is a plan view of the rotary dampener with latch port, 15, to control the speed of the door during the last approximately 15 degrees of door closing, and the sweep port, 16, to control the speed from the fully open position to
  • Section B-B is identified in Fig. 3A and shown in Fig. 3B.
  • the elongated hatched area, 17, is a cross section view of the pivotably operative rotor, constrained by bearings, 18 and 19.
  • Fluid, either pneumatic or hydraulic, in the void, 20, between the rotor, 17, and the housing, 21 is constrained within the housing by seals concentric with bearings, 18, and 19.
  • Spring energized lip seals and o-rings seals are commonly used for this purpose.
  • the void, 20, is defined by two regions, region A, 52, and region B, 53, as illustrated in Fig. 3C.
  • Fluid is exchanged between the two regions via the check valve, 25, during door opening and via the ports, 51 and the latch valve, 15 and the sweep valve, 16, as the door closes.
  • the indicated surfaces, 54 in Section view C-C are in close proximity. Sealing between the two regions, A and B is accomplished by o-ring seal, 55, is indicated between the rotor, 17, and the boss, 24.
  • the boss, 24, contains openings and pathways for the oil to travel past one or both of the latch and sweep valves as it travels from one side of the chamber defined by the rotor and boss to the other side of the chamber.
  • the rotating rotor of the rotary dampener functions analogously to the sliding piston in the ubiquitous rack and pinion designs currently in use in the industry.
  • a check valve in the rotor, 25 allows the oil to bypass the latch and sweep pathways and instead flow directly from one chamber to the other for ease of manual door opening.
  • the function of the rotary dampener mirrors that of the linearly constrained piston of common rack and pinion door closers. However, the dampening function facilitated for a door application in a device for which there is only relative rotation among the constituent parts is heretofore unknown in the art.
  • the rotary dampener offers efficiency benefits over the rack and pinion design because the rotary to linear motion conversion stage is eliminated, in addition, the rotary dampener, disposed within the door pivot stile and concentric with the central axis of rotation of the door further enhances efficiency, security, safety, reliability, cost and ease of door installation.
  • the rotary dampener housing rotates with the door, while the rotor is constrained by its connections to the bottom pivot and the torsion bar.
  • the adjustable bottom pivot of this invention provides a very simple and safe means for commissioning the door with the proper torsion bar preload, i.e. the proper force of the door on the door surround, in its nominal position.
  • Door pivots are commonly used in commercial and industrial swing doors. Those skilled in the art are familiar with the means of installation of a swing door between upper and lower pivots. Once the door is properly installed on its pivots it is necessary to set the torque of the door on the door surround. In commonly used, rack and pinion style door closers, this is accomplished with a tool used to set the initial displacement of a compression spring that pushes directly against the sliding piston of the closer.
  • the adjustable bottom pivot of this invention makes this process very simple and safe because the door itself is used as a lever to set the initial displacement of the torsion bar. Given the large leverage that can be realized by pushing on the latch end of the door, even very large torques can be effortlessly set with the adjustable bottom pivot of this invention.
  • Fig. 4A an exploded view of the adjustable bottom pivot, the locking torque plate, 26, is securely fastened to the floor with screws, 27, preferably flat head screws, and screw, 28, a preferably socket head screw, engaged to allow subsequent compression of the gap, 29, facilitated by turning screw, 30, preferably a socket head screw.
  • Thrust bearing and thrust washer assembly, 31 , and roller bearing, 32 slide onto sleeve, 33, with a light press or clearance fit.
  • the sleeve inserts in the central bore, 34 of the locking torque plate, 26.
  • the outer race of bearing, 32 mates with a bore in the door stile to define the axis of rotation of the door.
  • the door is chocked in this position and a suitable retainer wrench is placed on the flats of sleeve, 33, to lock the torsion bar to the door.
  • Access to the concealed hardware is easily accomplished by means of a small removable cover preferably located on the door edge nearest the door pivot. With the retainer in place, screw, 30, is loosened so that the sleeve, 33, now rotates with the door as it is manually returned to the nominal position.
  • Screw, 30, is again tightened to secure the torsion bar to the bottom pivot.
  • the retainer between the door and the torsion bar is then removed.
  • the door is now ready for the final set up of the latch and sweep valves, accessible through said removable cover, to match the required closing times from fully displaced to approximately 15 degrees and from approximately 15 degrees to the nominal position, respectively.
  • FIG. 2A An alternate embodiment is illustrated in a partially exploded view in Fig. 2A, in which the vertical stile, 35, and door jamb, 47 have been displaced to the right in the figure as illustrated to reveal the apparatus of the alternate embodiment.
  • the apparatus of this embodiment requires neither the right angle drive, 59, nor the transfer drive, 60, disclosed earlier in this specification.
  • the four bar linkage of the alt torque modulator, 56, in the alternate embodiment is redesigned with unique link lengths and a serial assembly of links with vertical rotation axes as seen in Fig. 2E.
  • the alternate embodiment requires a non standard pivot side stile.
  • the unique pivot side stile, 35, of the alternate embodiment can be used in conjunction with numerous types of door panels.
  • ail glass door panel, 57 which can be readily attached to the stile by means known to those skilled in the art.
  • the unique cross section profiles of the vertical stile of this invention and that of the door jamb are seen in a top plan view in Fig. 2D. The close proximity and the concentric disposition of the relative concave and convex sections provide a unique and attractive safety enhancement. Fig.
  • 2E a perspective view, illustrates the gap, 14, the unique stile, 35 and the unique jamb, 47 of this invention.
  • the gap, 14, does not open as the door is displaced.
  • the gap can be as little as 1/8" and still allow for weather-stripping between the stile and the jamb to seal the building from the exterior environment.
  • the moving links, 42, 43, and 44 of four bar linkage, 37 are stacked vertically and connected at one crank end, 42, to the door stile, 35, by means of bracket, 41 , and at the follower end, 44, coupled to the moving end of the torsion bar, 45, by means of coupling, 46, which prevents relative rotation between the follower, 44, and the torsion bar, 1.
  • Chaises, 38 fixedly mounted to the header, 10, provides the bearing supports for four bar linkage, 37.
  • Shaft, 39 fixedly attached to both of bracket, 41 , and crank, 42, rotates in chaises bearing, 40.
  • Bracket, 41 is fixedly attached to door stile, 35 with suitable fasteners.
  • Coupler, 43 is pivotably constrained to both of crank, 42, and follower, 44.
  • Torsion bar, 45 is fixedly attached to follower, 44, by way of coupling, 46.
  • the door is shown in the nominal position in Figure 2A.
  • the moving wing of the door rotates into the page of Figure 2A.
  • the four bar linkage, 37 imposes relatively larger angular rotation on the moving end of the torsion bar, 45.
  • the angular rotation imposed upon the moving end of the torsion bar becomes relatively smaller.
  • the reduction in the imposed rotation of the torsion bar is not a linear decrease as the door is displaced, but rather a steep decrease at the beginning of the cycle and a very small decrease at the end of the opening cycle.
  • the invention herein consists of a new and novel concealed control system disposed in a pivot hung door, connected to the door surround only at the pivots; including a torsion bar, a means to modulate the torsion bar torque, a rotary dampening means, and an adjustable bottom pivot for ease of commissioning of the door.
  • the main and alternate embodiments of this invention illustrate how the ubiquitous rack and pinion door closers of the existing art can, to advantage, be replaced with an efficient system that stores energy in a torsion bar disposed within a hollow chamber of a pivot hung door and comprising serially disposed elements that are pivotably engaged to one another.
  • the versatility of the control system of this invention is illustrated in Figures 5A and 5B.
  • Figure 5A shows the non-linear drop in torque on the door as the door is displaced from its nominal position, indicated as zero on the horizontal axis of the graph.
  • the vertical axis is given in units of inch-pounds.
  • the minimum torque on the door is achieved at about 80 degrees of displacement, after which the torque increases. This increase at 80 degrees of displacement is desirable for exterior doors in windy environments to resist wind forces while at the same time still providing a very desirable torque during the manual opening, which is typically less than 90 degrees of opening.
  • the result shown in Figure 5A is that of the main
  • the design is aesthetic and architecturally innovative
  • the simplified design efficiently converts the potential energy stored in the torsion bar into the useful work of self closing the door.

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  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

La présente invention concerne un système de commande de mouvement pour portes, grilles et fenêtres pivotantes à fermeture automatique ou à ouverture automatique disposé dans une chambre creuse d'une porte, grille ou fenêtre pivotante reliée à la structure environnante de porte seulement au niveau des gonds de porte. Le système emmagasine l'énergie de contrainte élastique lorsque la porte est déplacée depuis sa position nominale et libère de manière régulée l'énergie afin de ramener automatiquement le système dans sa position nominale. Le système est constitué d'un moyen de torsion et d'un moyen d'amortissement reliés en série, le moyen de torsion comprenant une barre de torsion et un modulateur de couple, et le moyen d'amortissement comprenant un boîtier et un rotor pouvant tourner fonctionnellement dans le boîtier.
PCT/US2016/034010 2015-05-28 2016-05-25 Système de commande pour portes, grilles et fenêtres à rétablissement automatique WO2016191450A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201562230133P 2015-05-28 2015-05-28
US62/230,133 2015-05-28
US15/097,147 US20170292308A1 (en) 2016-04-12 2016-04-12 Control System for Self Restoring Doors, Gates and Windows
US15/097,147 2016-04-12

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WO2016191450A1 true WO2016191450A1 (fr) 2016-12-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054163A (en) * 1991-01-04 1991-10-08 John Sterling Corporation Bottom pivot assembly for folding doors
US5309676A (en) * 1992-07-23 1994-05-10 C. J. Rush A Division Of Derlan Manufacturing Inc. Balanced door closing apparatus
US5572768A (en) * 1994-04-13 1996-11-12 Enidine Incorporated Door closer
US6401793B1 (en) * 2000-04-12 2002-06-11 Martin Door Manufacturing, Inc. Spring force safety locking system for sectional doors
US20050155180A1 (en) * 2004-01-16 2005-07-21 Ming-Jeng Lin Hinge device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054163A (en) * 1991-01-04 1991-10-08 John Sterling Corporation Bottom pivot assembly for folding doors
US5309676A (en) * 1992-07-23 1994-05-10 C. J. Rush A Division Of Derlan Manufacturing Inc. Balanced door closing apparatus
US5572768A (en) * 1994-04-13 1996-11-12 Enidine Incorporated Door closer
US6401793B1 (en) * 2000-04-12 2002-06-11 Martin Door Manufacturing, Inc. Spring force safety locking system for sectional doors
US20050155180A1 (en) * 2004-01-16 2005-07-21 Ming-Jeng Lin Hinge device

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