CN101275456A - Spring motor and drag brake for drive for coverings for architectural openings - Google Patents
Spring motor and drag brake for drive for coverings for architectural openings Download PDFInfo
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- CN101275456A CN101275456A CNA2007101988899A CN200710198889A CN101275456A CN 101275456 A CN101275456 A CN 101275456A CN A2007101988899 A CNA2007101988899 A CN A2007101988899A CN 200710198889 A CN200710198889 A CN 200710198889A CN 101275456 A CN101275456 A CN 101275456A
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- spring
- brake drum
- shell
- brake
- output spool
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- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims description 20
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- 239000003054 catalyst Substances 0.000 description 1
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
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- 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
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/47—Springs
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- 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
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/706—Shafts
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/262—Lamellar or like blinds, e.g. venetian blinds with flexibly-interconnected horizontal or vertical strips; Concertina blinds, i.e. upwardly folding flexible screens
- E06B2009/2625—Pleated screens, e.g. concertina- or accordion-like
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/38—Other details
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
A spring motor and drag brake for use in coverings for architectural openings. The combination of the spring motor and drag brake comprises: an output scroll, installed to rotate clockwise and anticlockwise; a transmission device spring, winding itself and limiting the first end and the second end, wherein the first end is fixed on the output scroll; and a brake. The brake comprises: a brake drum, connected to the output scroll functionally so as to make the rotation of the output scroll lead to the rotation of the brake drum; a helical spring component, installed on the brake drum; and a casing, wherein, through the installation manner that the helical spring component resists the brake drum rotating clockwise and anticlockwise relatively to the casing, so as to install the helical spring component and to overcome the torque needed by rotating resistance in one of clockwise direction and anticlockwise direction bigger than in the other direction.
Description
Technical field
The present invention relates to a kind of spring motor (spring motor) and drag brake (dragbrake), it can be used for opening and closing or tilt to be used for the overburden (covering) of architectural opening, such as venetian blind, shutter curtain, vertical blinds, other expandable material and other mechanical device.
Background technology
Generally speaking, the blind transmission system will have last rail, and rail supports overburden and hides and is used for raising and reduction or opens and close obducent mechanism on this.This blind system is described in United States Patent (USP) the 6th, 536, in No. 503, be used for the obducent modularization transmission system of architectural opening (Modular Transport System for Coverings for ArchitecturalOpenings), aforementioned patent is integrally incorporated herein by reference.In typical case top-down (top/down) product, suspended and be attached to down one on the rail (also be known as and move rail or bottom batten) or many stay cords and improve and reduce overburden by going up rail certainly.Obducent open and close usually reach by louver curtain heading tape (and/or suspension cable), ladder tape for venetian blind is operation before and after the bar stack of plates.Stay cord moves or is passed in the hole in the batten usually along bar stack of plates front and back.In the overburden of these types, when overburden is fallen (fully launch) fully, improve the required power minimum of overburden, this be since the weight of batten by the supporting of louver curtain heading tape make only improve when the beginning under rail.Along with overburden is further improved, the bar stack of plates is upward on the following rail, and the weight of batten is transferred on the stay cord from the louver curtain heading tape, therefore mentions the position of (regaining fully) fully along with overburden is approaching, needs the lifting force of increase gradually to improve overburden.
Some window covering product is oppositely built and is put (bottom-up), wherein be in substituting of window covering Cong Shu bottom as moving rail, move rail and be in window covering Cong Shu top, between this Cong Shu and last rail, make when this overburden is retracted, this clump Shu Tongchang is deposited in the window bottom, and when this overburden launches, moves rail and be in upward rail place of the obducent top next-door neighbour of window.Also have joint product, it can be operated in two ways, top-down operation and/or bottom-up operation.
Cover in the product at horizontal window, have external force of gravity, the operator overcomes this external force of gravity the position of expandable material from its expanded position and retrieving position is moved to another position.
Opposite with blind, in top-down window-blind, such as level of shear window shade (shear horizontal window shade), when improving window-blind, whole light screening material twines around rotation rail (rotator rail) usually.Therefore, when improving window-blind, the weight of window-blind is transferred on the rotation rail, and therefore along with window-blind (shading element) moves closer to fully the position of mentioning (opening fully), improves the required power of window-blind and reduce gradually.Certainly, also have bottom-up window-blind and compound window-blind, compound window-blind can be operated in two ways, top-down and/or bottom-up operation.Under the situation of bottom-up window-blind, along with window-blind is lowered, the weight of window-blind is transferred on the rotation rail, the operator scheme of imitating top-down louver curtain.
Under the obducent situation of vertical orientation window, it moves by side to opposite side but not moves up and down from one, and first rope is generally used for moving overburden to retrieving position and second rope (or second end of first rope) then is used for moving overburden to expanded position.In this case, the operator overcomes the gravity operation.Yet these window overburdens also may have another external force or the load of non-gravity by setting, and such as spring, the operator will overcome spring expandable material is moved to the another location from a position.
The a variety of driving mechanisms that are used for launching and regain overburden (horizontal or vertical mobile overburden or batten is tilted) are known.These many driving mechanisms may use spring motor to provide catalytic force (catalyst force) (and/or catalytic force of complement operation person supply) to come mobile overburden.
Summary of the invention
The invention provides a kind of spring motor and drag brake, it can be used for opening and closing or tilt to be used for the overburden of architectural opening.The combination of this spring motor and drag brake comprises: the output spool, and it is mounted for upward rotating in the clockwise direction with counterclockwise; The transmission device clockwork spring, it is being reeled on one's body certainly and is limiting first end and second end, and this first end is fixed on this output spool; And brake.This brake comprises: brake drum, and it is being connected on function on this output spool, makes the rotation of this output spool cause the rotation of this brake drum; Coil spring assembly, it is installed on this brake drum; And shell.Wherein, at this clockwise direction and the mounting means of rotation counterclockwise this coil spring assembly is installed with respect to this shell by making this coil spring assembly resist this brake drum, and this clockwise direction with counterclockwise in a direction on overcome the required moment of torsion of this rotational resistance greater than on other direction.
Description of drawings
Fig. 1 is for window shade and be used for part decomposition diagram this window shade and drive unit that combine spring motor;
Fig. 2 is the decomposition diagram of the spring motor of Fig. 1;
Fig. 3 is the phantom drawing of transmission device of the assembling of Fig. 2;
Fig. 4 is the end-view of the spring motor of Fig. 3;
The sectional view that Fig. 5 is intercepted for the line 5-5 along Fig. 4;
Fig. 6 A is the phantom drawing in conjunction with the top-down/bottom-up window-blind of the spring motor of Fig. 3;
Fig. 6 B is the part decomposition diagram of the last rail of Fig. 6 A, combines two groups of drive units on this in the rail;
Fig. 7 is the decomposition diagram of another embodiment of spring motor;
Fig. 8 is the phantom drawing of transmission device of the assembling of Fig. 7;
Fig. 9 is the end-view of the spring motor of Fig. 8;
The sectional view that Figure 10 is intercepted for the line 10-10 along Fig. 9;
Figure 11 is the phantom drawing of transmission device output shaft, helical spring and the spring coupling of the assembling of Fig. 7;
Figure 12 is the decomposition diagram of another embodiment of spring motor;
Figure 12 A is the decomposition diagram of another embodiment that is similar to the spring motor of Figure 12;
Figure 13 is the assembly drawing of the spring motor of Figure 12;
Figure 14 is an end-view for the spring motor of Figure 13;
The sectional view that Figure 15 A is intercepted for the line 15-15 along Figure 14;
Figure 15 B for the resistance brake drum of the assembling of Figure 12, sleeve and helical spring phantom drawing bridge;
Figure 16 is the decomposition diagram of another embodiment of spring motor;
Figure 17 is the assembly drawing of the spring motor of Figure 16;
Figure 18 is similar to shown in Figure 15 but is the sectional view of the spring motor of Figure 17;
Figure 19 is the schematic diagram of three steps related in the reverse coiling of leaf spring transmission device (flat spring motor); And
Figure 20 is the curve map of the torque curve of display standard wind spring and reverse wind spring.
The specific embodiment
Fig. 1 to Figure 20 illustrates the various embodiment of spring motor.These spring motors can move by side to it opposite side or make their batten inclination opening be used for cutting out launching and regaining the window overburden from one by improving and reducing the window overburden.Window overburden or the overburden that is used for architectural opening also can more specifically be called blind (blind) or window-blind in this article.
Fig. 1 is the part decomposition diagram of first embodiment that utilizes lattice shape (cellular) window-blind 100 of spring motor and drag brake combination 102.
The window-blind 100 of Fig. 1 comprises rail 108, following rail 110 and to go up rail 108 certainly suspended and be attached to lattice shape window-blind structure 112 on rail 108 and the following rail 110.Cladding material 112 has the substantially the same width of length with last rail 108 and lifting arm 118, and it has the substantially the same height of length with stay cord (in this figure and not shown but shown two groups of stay cords in Fig. 6 A) when launching fully, stay cord is attached to down rail 110 and promotes and makes on the station 116 when lifting arm 118 rotations, also rotate at the lifting spool that promotes on the station 116, and stay cord is wound into and promotes on the station 116 or untie to improve or to reduce down rail 110 and therefore to improve or reduce window-blind 100 from promoting station 116.The United States Patent (USP) the 6th that these lifting stations 116 and their operating principle were issued on March 25th, 2003,536, No. 503, it is open " to be used for the obducent modularization transmission system of architectural opening (Modular Transport System forCoverings for Architectural Openings) ", and aforementioned patent is integrally incorporated herein by reference.End cap 120 sealings are gone up the end of rail 108 and be can be used for trellis product 100 is installed on the architectural opening.
Between two lifting stations 116, be provided with spring motor and drag brake combination 102, it is making when spring motor rotates with 116 interconnection of lifting station on the function via lifting arm 118, lifting arm 118 and the spool on lifting station 116 also rotate, and vice versa, as discussing in more detail hereinafter.In aforesaid U.S. Patent the 6th, 536, also disclose the use spring motor in No. 503 and improved and reduced louvre curtain.
In order to improve window-blind, the user is mentioning on the rail 110 down.The auxiliary user of spring motor improves window-blind.Simultaneously, the drag brake part of spring motor and drag brake combination 102 applies resistance to this moving upward of window-blind.Such as hereinafter explanation, depend on direction of rotation, drag brake applies two kinds of different moments of torsion and resists rotation.In this embodiment, be smaller in two moments of torsion (be known as and discharge moment of torsion) by the resistance that drag brake applied, as explaining in more detail hereinafter to upwards motion.This discharges moment of torsion system friction and because the size of the moment of torsion that weight caused of window-blind is enough to prevent that spring motor from causing window-blind 100 to swash after the user discharges window-blind in addition.
In order to reduce window-blind, the user is drop-down on following rail 110, the auxiliary user of gravity in this task.When on following rail 100, when drop-down, rotating this spring motor so that increase the potential energy (being wound up on its output spool 122 by leaf spring, as explaining in more detail hereinafter) of leaf spring with transmission device.The drag brake of this combination 102 part moves downward to window-blind this and applies resistance and this resistance for the greater (be known as and keep moment of torsion) in by two moments of torsion that drag brake applied, as explaining in more detail hereinafter.The size of this maintenance moment of torsion that moment of torsion and spring motor applied and system friction combination is enough to prevent that window-blind 100 from falling.Therefore, window-blind rests on the position that it is discharged by the user, no matter where window-blind is released in along its whole stroke range; It neither swashes also not fall when discharging.
Now referring to Fig. 2, spring motor and drag brake combination 102 comprise transmission device output spool 122, leaf spring 124 (also being known as transmission device clockwork spring (motor spring) 124), classification (stepped) helical spring 126, drive housing part 128 and brake shell part 130.Two housing parts 128,130 are joined together to form complete shell.It should be noted that in this embodiment, brake shell part 130 extends beyond stopper mechanism so that also enclose the part of transmission device.
Transmission device output spool 122 (also referring to Fig. 5) comprises that spring batches (take-up) part 132, its left shoulder 134 of being cut sth. askew respectively in the side surrounds and defines directed vertically smooth recess 138 with right shoulder 136, and this smooth recess 138 comprises that raised button 140 (referring to Fig. 5) is used for first end 142 of leaf spring 124 is fixed to transmission device output spool 122.First end 142 of leaf spring 124 is threaded in the smooth recess 138 of spring reel-up 132 opening 144 that raised button 140 up to spring reel-up 132 are passed in first end 142 of leaf spring 124 and fastens, and leaf spring 124 is fixed on the transmission device output spool 122 releasedly.
Transmission device output spool 122 also comprises the resistance brake drum part 146 that extends to right shoulder 136 right sides vertically.Minor axis 148,150 extends vertically from each end of transmission device output spool 122 and is used for swivel bearing transmission device output spool 122, and is as mentioned below.
Plate basket for holding earth 124 is for closely being wound up into the flat metal band from one's body, as Fig. 2 describes.As discussed above, first end 142 of spring 124 limits port 144 releasedly leaf spring 124 is fixed on the transmission device output spool 122.As from the starting point of Fig. 2 as can be seen, the path of leaf spring 124 (routing) is the operation and entering in the smooth recess (flat) 138 in button 140 snaps into the port 144 of leaf spring 124 below transmission device output spool 122 of the end 142 of leaf spring 124.
Now referring to helical spring 126, it is similar to the conventional helical spring, except it limits two different spring ring diameters.(it should be noted that spring ring diameter is only for a feature of spring coil.Another is characterized as steel wire (wire) diameter or steel wire cross sectional dimensions.) the first spring coil part 152 has less spring ring diameter and only limit slightly internal diameter less than resistance brake drum 146 external diameters.The second spring coil part 154 has bigger spring ring diameter and only limits slightly external diameter greater than the internal diameter of respective cavities 156, respective cavities 156 (also being known as shell aperture 156 or drag brake hole 156) is limited by brake shell 130, as hereinafter in more detail as described in.
In Fig. 5, in fact the first spring coil part 152 that has shown classification helical spring 126 is embedded in the resistance brake drum part 146 and has shown that similarly in fact the second spring coil part 154 is embedded in the resistance brake hole 156.In fact, these spring coil parts 152,154 are not to be embedded into veritably in their parts 146,156 separately, but demonstration is illustrated in spring coil part 152,154 and their drums 146 separately and the fact of the interference engagement between the shell aperture 156 by this way.The steel wire diameter of the amount of this interference engagement and classification helical spring 126 or steel wire cross sectional dimensions have determined (dictate) to rotate the release moment of torsion and maintenance moment of torsion that must overcome at first direction and second direction in order to make brake drum 146 respectively with respect to shell 130.These two moments of torsion also can be known as component torque, this is because they are the moments of torsion that applied or applied on the drag brake parts by the drag brake parts, compare with system torque, system torque for also comprising by moment of torsion that applies on the overall system and system torque because the moment of torsion that the spring motor of this combination 102 part is caused, friction torque, owing to moment of torsion that weight caused of window-blind or the like.
When rotates (as from the starting point of Fig. 2 as can be seen) in the counterclockwise direction with respect to shell 130, output spool and brake drum take place to keep moment of torsion, this maintenances moment of torsion to tend to make helical spring 126 to divide 146 and towards 146 expansion of the hole of shell 130 or stretching, extension away from tympanic part.In this case, the first spring coil part 152 that resistance brake drum part 146 is slided and crossed helical spring 126, and the second spring coil part 154 of helical spring 126 locks onto on the shell aperture 146.This maintenance moment of torsion is the higher person and in this embodiment in two component torque of these drag brake parts, when leaf spring 124 is winding on the output spool 122 (and from 162 expansion of storage spool, increase the potential energy of device 102) time this maintenance moment of torsion takes place, when it also betides the user by means of the drop-down window-blind 100 of gravity.
Therefore, drop-down to overcome when keeping moment of torsion on following rail 100 as the user, leaf spring 124 is wound up on the output spool, and drum 146 slides with respect to helical spring 126.Keep moment of torsion when any point along the stroke distances of window-blind 112 discharges window-blind, to be enough to prevent that window-blind 100 from falling the user by design.(certainly, but this set also is opposite, makes to be rotated counterclockwise when the user promotes on following rail).
Equally, when the following rail 110 of window-blind 100 was raised, output spool 122 and brake drum 146 rotated (as seen from Figure 2) in the clockwise direction with respect to the hole 156 of shell 130.Leaf spring 124 is wound up on the storage spool 162 and from output spool 132 and launches, and auxiliary user improves window-blind 100.And classification helical spring 126 causes helical spring 126 to shrink away from shell aperture 156 and towards drum 146 in identical clockwise direction rotation.This causes the first spring coil part 152 to be clamped on the resistance brake drum part 146 downwards and the second spring coil part 154 tightens away from hole 156.Moment of torsion (smaller in two moments of torsion of these drag brake parts) when sliding with respect to shell aperture 156, classification helical spring 126 takes place to discharge.
Therefore, when the operator mentioned on following rail 110, leaf spring 124 is wound up on the storage spool 162 and along with window-blind rises, helical spring slides with respect to hole 156.
In a word, keeping moment of torsion is the greater in two moments of torsion of this resistance brake component, and this maintenance moment of torsion takes place when helical spring 126 increases or expands make the second spring coil part 154 stretch also " locking " to the hole 156 of shell 130, and the first spring coil part 152 is slided from 146 stretching, extensions of resistance brake drum part and with respect to resistance brake drum part 146 against the hole 156 of shell 130.Discharge moment of torsion and be smaller in two moments of torsion of resistance brake component and when resistance tripping spring 126 draws in, take place this releases moment of torsion make the second spring coil part 154 shrink away from the hole 156 of shell 130 and with respect to hole 156 slips of shell 130 and 152 gatherings of the first spring coil part also " locking " on resistance brake drum part 146.Two moments of torsion of resistance brake component all provide drum 146 and the resistance of output spool 122 with respect to shell 130 rotations.The bigger application-specific that depends on of which moment of torsion in the torque capacity of each direction of rotation of drag brake and these moments of torsion.
In order to assemble spring motor and drag brake combination 102, leaf spring 124 is fixed on the output spool 122, as already mentioned above.Classification helical spring 126 slides on the resistance brake drum part 146 of output spool 122 and this assembly is placed on brake shell part 130 inside, and the central opening 166 of leaf spring 124 slides on the hollow shaft protuberance 158 of brake shell part 130 and classification helical spring 126 is placed in 156 inside, drag brake hole.Drive housing part 128 matches with brake shell part 130 then.Pin 168 and the bridge 170 that these two housing parts 128,130 are illustrated is buckled together (as the U.S. patent application case S/N 11/382 that files an application on May 8th, 2006, No. 089, " be used for the interlock design (Snap-Together Design for ComponentAssembly) of component-assembled " and describe comprehensively, aforementioned application is incorporated herein by using integral ground).The minor axis 148,150 of output spool 122 is cross-placed on respectively on the corresponding port 172,174 (referring to Fig. 5) in drive housing part 128 and the resistance brake drum part 146 and is used for rotatably mounted output spool 122.
As in Fig. 5 as can be seen, leaf spring 124 is shown and is in the position of " discharging fully ", all is wound up on the storage spool 162.Classification helical spring 126 is shown and mediates, this position first helical spring part 152 closely winding dynamic braking tympanic part divide 146 to reel and the second spring coil part 154 also closely 156 is reeled against the drag brake hole.As explaining in front, when the following rail 110 of the drop-down window-blind 100 of user, classification helical spring 126 stretches or launches and makes the second spring coil part 154 closely be locked on the drag brake hole 156, and the first spring coil part 152 stretches away from resistance brake drum part 146, and this higher person (it is known as and keeps moment of torsion) that allows brake to sentence two moments of torsion that are used for the drag brake parts in brake drum part 146 slides.The user must overcome this and keep moment of torsion and leaf spring 24 is wound up into required moment of torsion and any other system torque reduces window-blind 100 on the output spool 122, and these moments of torsion also are the moments of torsion that prevents that after the user discharges window-blind 100 window-blind from falling.
Fig. 1 has shown how spring motor and drag brake combination 102 may be installed in the window-blind 100.Since lifting arm 118 fully by spring motor and drag brake combination 102 (via in exporting spool 122 at axially aligned port 176), therefore spring motor and drag brake combination 102 may be installed in along any position of last rail 108 length, is promoting between the station 116 or is promoting on the either side at station 116.The design flexibility that the Installation Flexibility that this designing institute provides provides far above the prior art designing institute.
It should be noted that in Fig. 4 this port 176 in output spool 122 has non-circular profile.In fact, in this specific embodiment, it has " V " recess profile 176, should " V " recess profile 176 and lifting arm 118 couplings with similar profile.Therefore, the rotation of output spool 122 causes the corresponding rotation of lifting arm 118 and vice versa.
Shown in Fig. 6 B, the wider envelop of function of ability permission realization of a kind of driving control element (such as spring motor or brake) can be installed along a plurality of axostylus axostyles in any position.Being provided with shown in Fig. 6 B uses an axostylus axostyle 1022 to improve and reduce another axostylus axostyle 1024 that an obducent part and use be parallel to first axostylus axostyle 1022 to improve and reduce obducent another part, but is to use two or more axostylus axostyles also to allow other function.For example in fact, axostylus axostyle can be used for improving and reduces this covering and another axostylus axostyle and can be used for making the batten on the overburden to tilt, as at United States Patent (USP) the 6th, 536, described in No. 503 like that.
Fig. 6 A and Fig. 6 B have described top-down/bottom-up window-blind 1002, two spring motors of its use and drag brake combination 102, one of each lifting arm 1022,1024 use.Window-blind 1002 comprises the head track 1004 of band edge cap 1006, the middle rail 1008 of band edge cap 1010, the following rail 1012 of band edge cap 1014, lattice shape window-blind structure 1016, spring motor and drag brake combination 102M, 102B, two following rails promote 1018, two the middle rails in station and promote station 1020, following rail lifting arm 1022 and middle rail lifting arm 1024.
Under the situation of top-down/bottom-up window-blind 1002 of Fig. 6 B, spring motor and drag brake combination 102M, 102B promote station 1018,1020, and lifting arm 1022,1024 are contained in all in the head track 1004.Lifting arm or axostylus axostyle 1022,1024 all pass completely through the combination of two spring motors and drag brake 102M, 102B, but in lifting arm or the axostylus axostyle 1022,1024 each one in only engaging transmission device and drag brake making up and with under the situation that another person engages do not passing another person.Preceding lifting arm 1024 interconnects with two lifting stations 1020, spring motor and drag brakes combination 102M and middle rail 1008 in operation via stay cord 1030 (referring to Fig. 6 A) but just passes another spring motor and drag brake combination 102B.Back lifting arm 1022 promotes station 1018, spring motor and drag brakes combination 102B and rail 1012 interconnection but just pass another spring motor and drag brake makes up 102M down via stay cord 1032 (referring to Fig. 6 A) with two.
In this case, middle rail 1008 may make progress all the time to move and just be held on head track 1004 belows up to it, perhaps it may move downwards all the time up to it and just be held on down rail 1012 tops, and perhaps middle rail 1008 may rest on any position between these two extreme positions.The below (no matter where middle rail is positioned at for 1008 this moments) that following rail 1012 may make progress all the time and move rail 1008 in it just is held on, perhaps it may move the total length of extending window-blind 1002 up to it all the time downwards, perhaps descends rail 1012 may rest on any position between these two extreme positions.
Each lifting arm 1022,1024 uses its parts separately to operate independently of one another about the described same way as of single pole system as mentioned, wherein before bar 1024 in operation, be connected on the rail 1008, and back bar 1022 is under being connected in the operation on the rail.
Briefly referring to Fig. 6 B, spring motor and drag brake combination 102B, 102M may be identical or different between them be that classification helical spring 126 may have different steel wire diameter (perhaps different steel wire cross sectional dimensions) in case the maintenance moment of torsion that customization is used for each brake with discharge moment of torsion.The larger-diameter steel wire (or big steel wire cross sectional dimensions) that is used for classification helical spring 126 produces higher maintenance moment of torsion and discharges moment of torsion.Whether no matter identical, spring motor and drag brake combination 102B are " upsets " with respect to spring motor and drag brake combination 102M when mounted.Be used for the port 176 that the following lifting arm 1022 of rail 1012 passes spring motor and the output spool 122 of drag brake combination 102B (and export spool 122 engage) with this.It also passes the port 164 of the storage spool 162 of spring motor and drag brake combination 102M.Equally, the lifting arm 1024 that is used for rail 1008 is passed in port 176 in the output spool 122 of spring motor and drag brake combination 102M (and engage with this output spool 122).It also makes up the port 164 of the storage spool 162 of 102B by another spring motor and drag brake.
It should be noted, may add the combination of a plurality of spring motors or a plurality of spring motor and drag brake as required, and, they pass completely through their shell because provide these parts to be used for axostylus axostyle or bar 1022,1024, so may be positioned at along any position of bar 1022,1024.Should also be noted that wider combination of components scope in the ability permission system of the driver part that makes two or more axostylus axostyles pass completely through spring-operated (wherein at least one axostylus axostyle engage this spring and at least one another axostylus axostyle in the operation in operation, do not engage this spring).The driver part of spring-operated may be independent spring motor, the combination of independent spring-loaded brake, spring motor as shown here and spring-loaded brake or other parts.
Other embodiment of spring motor and drag brake combination
Fig. 7 to Figure 11 described spring motor and drag brake combination 102 ' another embodiment.And Fig. 2 has relatively given prominence to difference between this embodiment 102 ' and previous the disclosed embodiments 102.As substituting of single classification helical spring 126, this embodiment comprises two " routine " helical spring 126S, 126L, and these two " routine " helical spring 126S, 126L are by spring coupling 127 ' link together on function.The first helical spring 126S has less spring ring diameter, and the second helical spring 126L has bigger spring ring diameter.
Spring coupling 127 ' be the washer-shaped device, its limit pod 178 ', the elongated end 180 of pod 178 ' admit respectively helical spring 126S, 126L ', 182 '.Because helical spring 126S has less spring ring diameter, its be assemblied in than major diameter helical spring 126L inside and elongated end 180 ', 182 ' adjacent one another are be positioned at groove 178 ', as shown in figure 10.
Spring coupling 127 ' qualification central opening 184 ', this central opening 184 ' permission spring coupling 127 ' output spool 122 ' minor axis 150 ' on slide.Spring coupling 127 ' permission two spring 126S, 126L are made by (or different steel wire cross sectional dimensions is because the cross section of steel wire may not be as these springs for the circular) steel wire with different-diameter and still serve as single spring when exporting spool 122 ' rotation.Figure 11 has shown two helical spring 126S, 126L, these two helical spring 126S, 16L on the function by spring coupling 127 ' connect and be installed on output spool 122 ' on.
This spring motor and drag brake combination 102 ' work to make up 102 identical modes with spring motor mentioned above and drag brake is selected separately the steel wire cross sectional dimensions of each helical spring 126S, 126L neatly except using two helical spring 126S, 126L permissions.In this way, can select to be used for correct (perhaps desirable) braking torque of every kind of application more accurately.
For example, Fig. 7 described to be used for winding dynamic braking tympanic part divide 146 ' clamping than the steel wire cross sectional dimensions of small coil springs 126S greater than the steel wire cross sectional dimensions that is used in drag brake hole 156 ' inner clamping than king bolt spring 126L.Because sliding torque (helical spring slide cross its against the moment of torsion on the surface of clamping) along with the vary in diameter that is used for helical spring steel wire cross section (under the same situation of other condition, the steel wire cross sectional dimensions is big more, sliding torque is high more), maintenance moment of torsion therefore embodiment illustrated in fig. 7 (two the greater in moment of torsion) is greater than the maintenance moment of torsion of similar spring motor with the less spring coil 126S that is made by the smaller cross-sectional area steel wire and drag brake.
Figure 12 and Figure 13 to Figure 15 B have described spring motor and drag brake combination 102 " another embodiment." and the difference between previous the disclosed embodiments 102 that and the ratio of Fig. 2 has been given prominence to this embodiment 102 more quickly.This embodiment 102 " comprise a plurality of identical or very similar parts, such as transmission device output spool 122 ", leaf spring 124 " (or transmission device clockwork spring 124 "), drive housing part 128 ", brake shell part 130 ", resistance brake drum part 146 " and helical spring 126 ".Such as hereinafter discussion, some clauses and subclauses in these clauses and subclauses are different from slightly above and " also have the sleeve of bridging 127 " about the described clauses and subclauses of previous embodiment and this embodiment 102, the needs of the operation of the sleeve 127 that bridges " being to conform with this spring motor and drag brake combination 102 " but be not strict necessary.(at the another embodiment 102 shown in Figure 16
*Do not use sleeve.)
Very evident difference is resistance brake drum part 146, and " for single-piece, it is rotatably supported on the transmission device output spool 122 " axle extension 148 ".As can recognizing, on transmission device output spool 122 " is rotatably supported in housing parts 128 ", 130 " going up and resistance brake drum parts 146 " are rotatably supported in transmission device output spool 122 " axostylus axostyle extension 148 " from Figure 15 A.Transmission device output spool 122 " with resistance brake drum part 146 " has the hollow shaft 176 ", 186 " of band non-circular profile (also referring to Figure 12 and Figure 14), so that engage lifting arm 118.
On the external diameter that helical spring 126 " can directly be cross-placed on resistance brake drum part 146 ", but be to use the sleeve 127 that bridges " selecting to be used for resistance brake drum part 146 " and be used to the sleeve 127 that bridges " suitable material aspect the permission greater flexibility.For example in fact, draw on the external diameter of the sleeve 127 that bridges " may be best some is flexible by having (make that it can be in resistance brake drum part 146 ") and the material with some self-lubricating character make.In addition, if use the sleeve 127 that bridges ", under the situation of high wear between the helical spring 126 " and the sleeve 127 that bridges ", may simply replace the sleeve 127 that bridges so ", and nonessential replacement resistance brake drum part 146 ".The remainder of this description has been introduced only one group of sleeve 127 that bridges " with helical spring 126 " (unless indicating in addition), should be appreciated that also and can use two or more groups, may have result preferably but its operating principle is substantially the same, as discussed above.
With with above leaf spring 124 " is assembled into transmission device output spool 122 " about the transmission device of Fig. 2 output spool 122 described same way as on.Then the leaf spring 124 assembled " with transmission device output spool 122 " is assembled in the drive housing part 128 " with brake shell part 130 ", wherein leaf spring 124 " opening 166 " is gone up at the hollow shaft protuberance 158 " with 160 " of drive housing part 128 " with brake shell part 130 " respectively and is slided.
On the external diameter that then, the sleeve 127 that will bridge " with helical spring 126 " is assembled into resistance brake drum part 146 " on, shown in Figure 15 B, the sleeve 127 that wherein bridges " with helical spring 126 " is installed to resistance brake drum part 146 continuously ".Make helical spring 126 " crimp end 190 " outstanding on helical spring 126 " is installed to its corresponding sleeve 127 that bridges " by the sleeve 127 that bridges " groove shape opening 192 ".Each sleeve 127 that bridges " comprises peripheral flange 194 at each end " to help to prevent operating period " upward landing from its corresponding sleeve 127 that bridges of helical spring 126 " in spring motor and drag brake combination 102 ".
Then, the outrigger shaft 148 that the resistance brake drum part 146 that assembles ", helical spring 126 " and the sleeve 127 that bridges " are installed to transmission device output spool 122 " " on, guarantee that each helical spring 126 " crimp end 190 " is stuck in one in the brake shell part 130 " groove shape opening 188 ".Make resistance brake drum part 146 " rotation up to transmission device output spool 122 " and resistance brake drum part 146 " non-circular profile 176 ", 186 " aim at respectively and make lifting arm 118 can pass whole assembly insertion, as shown in figure 13.
During operation, as from shown in the starting point of Figure 12, along with transmission device output spool 122 " be rotated counterclockwise (corresponding to the reduction and the leaf spring 124 of window-blind 100 " " is transferred to transmission device output spool 122 " from storage spool 162), transmission device output spool 122 " with resistance brake drum part 146 " all counterclockwise rotates at this.Also impelled the sleeve 127 that bridges " the rotation of this equidirectional (sleeve 127 owing to bridge " with resistance brake drum part 146 " between friction), and also impelled helical spring 126 " this equidirectional rotation (owing to bridging sleeve 127 " and helical spring 126 " between friction).Yet, helical spring 126 " crimp end 190 " is fixed to brake shell part 130 rotation of " going up and prevent this crimp end 190 ", therefore, at helical spring 126 " remainder when beginning to rotate in the counterclockwise direction, tighten on the helical spring 126 " to the sleeve 127 that bridges ".Therefore draw on the external diameter of sleeve 127 " slightly to the drag brake part 146 " that bridge, to the rotation of the lifting arm of resistance brake drum part 146 " rotation (and to engaging resistance brake drum part 146 ") resistance that increases is provided.
When promoting window-blind 100, auxiliary user when spring motor and drag brake combination 102 " at leaf springs 124 " " launch (therefore it turn clockwise) and are wound up into storage spool 162 " from transmission device output spool 122." also turn clockwise, it has impelled the sleeve 127 that bridges " with helical spring 126 " to turn clockwise to resistance brake drum part 146.Equally, the groove shape opening 188 of " crimp end 190 be fixed to brake shell part 130 " because helical spring 126 " on; so helical spring 126 " " growths " or stretch, increased their internal diameter and the sleeve 127 that reduces to a great extent to bridge " last and tympanic part divides 146 " on braking torque.Therefore, resistance brake drum part 146 " can from helical spring 126 " changes than the slight drag backspin.Therefore, the user can be in spring motor and drag brake combination 102 " help under easily improve window-blind 100.
Figure 12 A has described and the spring motor of Figure 12 and drag brake combination 102 " ' identical embodiment; except helical spring 126 " in a helical spring 126 " with respect to helical spring 126 " 180 degree that overturn, and it is to be made by the wire material with thinner cross section.Now, " when turning clockwise, the sleeve 127 that bridges " with helical spring 126 " also turns clockwise when resistance brake drum part 146.Yet in this case, turning clockwise to cause on second helical spring 126 " downwards to its sleeve 127 that bridges " tightens, on the sleeve 127 that reduced to bridge " internal diameter and therefore be clamped in resistance brake drum part 146 downwards ".The cross-sectional diameter of " cross-sectional diameter less than first helical spring 126 " because this second helical spring 126, therefore, the moment of resistance that " is applied to resistance brake drum part 146 when rotating in the clockwise direction " when resistance brake drum part 146 is applied to resistance brake drum part 146 when rotating in the counterclockwise direction " the moment of resistance.If the cross sectional dimensions of the second helical spring steel wire is greater than first helical spring 126 " the cross sectional dimensions of steel wire, the braking torque in will be bigger so in the clockwise direction.If two helical springs 126 " identical but still opposite each other, so in both direction braking torque with identical.
Figure 16 and Figure 17 have described spring motor and drag brake combination 102
*Another embodiment.Compare with Figure 12 and to have shown this embodiment 102
*" substantially the same, " and it only has single helical spring 126 except this embodiment does not have the sleeve 127 that bridges with previous the disclosed embodiments 102
*Yet,, can use two or more this helical springs 126 if need
*, as described embodiment 102 formerly " situation under.Helical spring 126
*Directly ride up to resistance brake drum part 146
*External diameter on but not use the sleeve 127 that bridges ".Except these differences, this spring motor and drag brake combination 102
*So that " substantially the same mode is operated with previous described embodiment 102.
It should be noted, in this spring motor and drag brake combination 102
*In, as under the situation of all spring motors as herein described and drag brake combination, helical spring 126
*Or leaf spring 124
*Can from assembly, omit.If omitted helical spring 126
*, the combination of spring motor and drag brake 102 so
*Only operate, and do not have the ability of drag brake as spring motor.Equally, if omitted leaf spring 124
*, the combination of spring motor and drag brake 102 so
*Only do not have the transmission device ability as the drag brake operation.
Figure 18 has described spring motor and drag brake combination 102
*Another embodiment.With Fig. 5 relatively shown this embodiment 102
*Substantially the same with embodiment 102, except making up 102 at this spring motor and drag brake
*In, storage spool 162
*Be not as with the situation of previous described embodiment 102 under hollow reel.Therefore, in this case, lifting arm can not pass storage spool 162
*Except this difference, this spring motor and drag brake combination 102
*Operate in substantially the same with embodiment 102 basically mode.
Figure 19 and Figure 20 have described the embodiment of leaf spring (or transmission device clockwork spring), if need, it is used in these embodiment described in this manual.Make by the flat metal band closely is wound on himself at the leaf spring 124 shown in the step #1, afterwards, spring coil is disengaged stress.This leaf spring defines internal diameter 196, and internal diameter 196 is 0.25 inch in this embodiment.Can be used for embodiment mentioned above as the spring 124 shown in when step #1 finishes, perhaps this spring can experience extra step, as shown in figure 19.
In step #1, this helical spring 124 of at first reeling make first end 200 of spring 124 in the inside of spring coil and second end 202 of spring 124 in the spring coil outside.Then, helical spring 124 is disengaged stress then, so it is rendered as spring coil group (springset) shown in Figure 1, and its medi-spring has less radius of curvature and to its second (outer) end little by little and increase constantly at its first (interior) end.Afterwards, in step #2, oppositely reel this helical spring 124 up to the position shown in its arrival step #3, in this position, the end 202 (having bigger spring coil suite rate radius) that the end 200 of spring 124 (having less spring coil suite rate radius) now is in spring coil outside and spring 12 now is in spring coil inside, and wherein spring coil suite rate radius little by little and constantly reduces outward from the inner.This spring coil 124R that oppositely reels is not separated de-stress once more.And this spring coil 124R that oppositely reels defines internal diameter 198, and this internal diameter 198 preferably is slightly larger than the internal diameter 196 of original leaf spring 124.In this embodiment 124R, this internal diameter is 0.29 inch.
Figure 20 with chart drawing standard coiling leaf spring 124 (leaf spring when it is illustrated in step #1 and finishes) power-assisted moment of torsion (power assist torque) curve and with its when step #3 at Figure 19 finishes oppositely the torque curve of the leaf spring 124R of coiling compare.It has described when spring begins to launch (left side far away of curve) to be launched (its for towards the curve middle part, curve shows the point of rapid drawdown) fully and return then up to spring by the torsional forces of reel fully once more (right-hand member far away of curve) up to it.Will be appreciated that the power-assisted torque curve of the leaf spring 124R that oppositely reels is curve more smooth than standard coiling leaf spring 124 on the whole operation scope of spring.This more smooth torque curve normally is used for improving and reducing the employed desirable feature of the obducent spring motor type of window.
Now briefly referring to Fig. 2, if the reverse wind spring 124R with Figure 19 replaces leaf spring 124, so oppositely the end 200 (it has less spring coil suite rate radius) of wind spring 124 is with holes 144 end 142, and this hole 144 allows it to be attached on the output spool 122.The lever arm that acts on output spool 122 is defined as the distance on surface 132 from the rotation of output spool 122 to output spool 122.When reverse wind spring 124R launches and is wound up into basically when himself going up from output spool 122 basically, this lever arm minimum.Therefore, utilize this setting, the part with reverse wind spring 124R of the highest spring rate (minimum spring coil suite rate radius) works on minimum lever arm.
When the spring 124R of reverse coiling was wound up on the output spool 122 basically, the lever arm that acts on the output spool 122 will increase by the thickness that now is wound up into the spring coil on the output spool 122.Therefore, when the minimum spring rate (part of maximum spring coil suite rate radius) of the spring 124R of reverse coiling acted on the output spool, this lever arm was with maximum.Final result is that the power-assisted torque curve is become smoothly, as shown in figure 20.
Oppositely the program of wind spring 124 only is to keep the uniform thickness of the metal tape that forms spring and a kind of method of width simultaneously along the length change spring rate of spring depicted in figure 19.Use other program may obtain similar result, and the spring coil suite rate that may design spring 124 is to obtain to have the torque curve of negative slope or any other desirable slope.
For example, form spring 124 metal tape may with various angles on anvil, stretches with the spring coil suite rate of the various parts that change spring 124 (with thus spring rate), and do not change other physical parameter of spring.By change the angle that metal stretches on anvil, can make spring rate continue to increase or reduce to the other end from an end of spring, it is increased to mid point from an end, keep constant and reduce then for the length-specific of spring coil, perhaps increase and reduce then, perhaps progressively change, perhaps depend on the application that it will be used for, with any other desirable pattern.The spring coil suite rate radius that can handle spring as required forms desirable spring force so that obtain being used for the desirable power-assisted torque curve of any application-specific with each point along spring.
Spring coil suite rate radius in the prior art 202 continues to increase outward along the whole consistent length of leaf spring or from inner 200, and wherein outer end 202 is connected to the output spool of spring motor.Yet, as explained above, may design leaf spring and make to have the spring coil group of radius of curvature, as situation and the many situations in other design leaf spring mentioned above is provided with at the reverse wind spring as shown in the step #3 of Figure 19 greater than the part of the leaf spring of the more close end that is connected to the output spool apart from the part of the end that is connected to output spool leaf spring far away.Spring coil suite rate radius may have apart from the farther third part in end that is connected to the output spool, and this third part is less than than the long radius part, and perhaps it can keep constant or the like than the long radius part to the other end from this.
It will be apparent to those skilled in the art that under the situation that does not deviate from the category of the present invention that limits as claim and can embodiment mentioned above be made amendment.For example, the resistance arrestment mechanism can be attached on the spring motor storage spool, this spring motor storage spool is installed to rotate with respect to shell, this still makes the resistance arrestment mechanism be attached to spring motor output spool on function and still realizes same result.Also can carry out multiple other modification.
Claims (24)
1. spring motor and drag brake combination, it comprises:
Output spool, described output spool are mounted for upward rotating in the clockwise direction with counterclockwise;
Transmission device clockwork spring, described transmission device clockwork spring are reeled on himself and are limited first end and second end, and described first end is fixed on the described output spool; And
Brake, described brake comprises:
Brake drum, described brake drum is being connected on the function on the described output spool, makes the rotation of described output spool cause the rotation of described brake drum;
Coil spring assembly, described coil spring assembly are installed on the described brake drum; And
Shell;
Wherein, at described clockwise direction and the mounting means of rotation counterclockwise described coil spring assembly is installed with respect to described shell by making described coil spring assembly resist described brake drum, and described clockwise direction with counterclockwise in a direction on overcome the required moment of torsion of described rotational resistance greater than on other direction.
2. spring motor according to claim 1 and drag brake combination is characterized in that described shell defines endoporus, and described coil spring assembly comprises than the minor diameter spring section and than the major diameter spring section;
When described brake drum described clockwise direction with counterclockwise in a direction on during with respect to described shell rotation, describedly draw on the described brake drum and describedly shrink away from described endoporus than the major diameter spring section than the minor diameter spring section; And
When described brake drum described clockwise direction with counterclockwise in another direction on during with respect to described shell rotation, describedly stretch away from described brake drum and describedly stretch against described endoporus than the major diameter spring section than the minor diameter spring section.
3. spring motor according to claim 2 and drag brake combination is characterized in that described coil spring assembly comprises: provide described first helical spring than the minor diameter spring section; Described second helical spring than the major diameter spring section is provided; And the spring coupling, described spring coupling makes described first helical spring link to each other on function with second helical spring, makes described two helical springs rotate together as single component.
4. spring motor according to claim 2 and drag brake combination, it is characterized in that, described coil spring assembly applies moment of torsion against the described endoporus of described brake drum and described shell, and described moment of torsion is resisted described brake drum with respect to the rotation of described shell on described clockwise direction and described anticlockwise both direction; And described coil spring assembly rotates with respect to the described again clockwise direction of described shell and on the direction counterclockwise to allow described brake drum with respect to described brake drum slip, and described coil spring assembly slides to allow described brake drum with respect to rotating on described shell another direction in described both direction with respect to the described hole of described shell.
5. the combination of spring motor according to claim 4 and drag brake is characterized in that, when stretching away from described brake drum than the minor diameter spring section, described transmission device clockwork spring is wound up on the described output spool when described.
6. spring motor according to claim 5 and drag brake combination, it is characterized in that, describedly make by steel wire with first cross sectional dimensions than the minor diameter spring section, and described be to make than the major diameter spring section by steel wire with second cross sectional dimensions that is different from described first cross sectional dimensions.
7. spring motor according to claim 1 and drag brake combination, it is characterized in that, described spring motor and drag brake combination also comprise the overburden that is used for architectural opening, described overburden is being connected on the function on the described brake drum, make when described overburden launches described brake drum described clockwise with counterclockwise in a direction on rotate, and when described overburden is regained described brake drum described clockwise with counterclockwise in another direction on operate.
8. spring motor according to claim 2 and drag brake combination, it is characterized in that, described shell define the two pairs of openings of aiming at vertically parallel with two open path, each path of opening pass completely through described shell and pass described axially align opening in corresponding a pair of extension and be suitable for admitting and pass the axostylus axostyle that described shell extends, one in the described path of opening extends through described output spool vertically.
9. the combination of spring motor according to claim 2 and drag brake is characterized in that, described than the minor diameter spring section and described be the part of single spring than the major diameter spring section.
10. spring motor according to claim 1 and drag brake combination is characterized in that described coil spring assembly comprises first helical spring that is installed on the described brake drum; Described first helical spring comprises first end that is fixed on the described shell, when described output spool described clockwise with counterclockwise in a direction on during rotation described first helical spring on described brake drum, draw in.
11. spring motor according to claim 10 and drag brake combination, it is characterized in that, described coil spring assembly also comprises second helical spring that is installed on the described brake drum, described second helical spring comprises first end that is fixed on the described shell, when described output spool described clockwise with counterclockwise in another direction on during rotation described second helical spring on described brake drum, draw in.
12. spring motor according to claim 10 and drag brake combination is characterized in that described coil spring assembly is included in drawn in the sleeve in the middle of described brake drum and described first helical spring.
13. spring motor according to claim 10 and drag brake combination, it is characterized in that, described shell defines two pairs of opening paths of aiming at vertically of opening parallel with two, each path of opening pass completely through described shell and pass the described opening of aiming at vertically in corresponding a pair of extension and be suitable for admitting and pass the axostylus axostyle that described shell extends, one in the described path of opening extends through described output spool vertically.
14. a covering system that is used to cover architectural opening, it comprises:
Overburden movably; And
Spring motor, described spring motor is connected on the described removable overburden in operation, described spring motor comprises output spool and leaf spring, described leaf spring has first end that is connected on the described output spool, wherein at least one part apart from described first end described leaf spring far away has the bigger groups of springs of radius of curvature, and the second portion of the described leaf spring of more close described first end has the less groups of springs of radius of curvature.
15. the covering system that is used to cover architectural opening according to claim 14 is characterized in that, the described radius of curvature of described leaf spring from described first end than small curvature radius continue to increase to described second end than larger radius of curvature.
16. the covering system that is used to cover architectural opening according to claim 14, it is characterized in that, exist apart from the third part of the described first end described leaf spring more farther than a described part, described third part has the spring coil group of radius of curvature less than a described part.
17. the covering system that is used to cover architectural opening according to claim 14 is characterized in that, described output spool is mounted for clockwise and rotation counterclockwise, and the described covering system that is used to cover architectural opening also comprises:
Brake drum, described brake drum is being connected on the function on the described output spool, makes the rotation of described output spool cause described brake drum rotation;
Shell; And
Coil spring assembly, by make described coil spring assembly resist described brake drum with respect to described shell described clockwise with counterclockwise on the mounting means of rotation described coil spring assembly is installed on the described brake drum, and described clockwise direction with counterclockwise in a direction on overcome the required moment of torsion of described rotational resistance greater than on other direction.
18. the covering system that is used to cover architectural opening according to claim 17 is characterized in that described shell defines endoporus; Described coil spring assembly comprises than the minor diameter spring section and than the major diameter spring section, when rotating on the direction of described brake drum in described clockwise direction and described counter clockwise direction, describedly draw on the described brake drum and describedly draw in away from described endoporus, and stretch away from described brake drum and describedly stretch against described endoporus than the minor diameter spring section than the major diameter spring section when described during rotation on described brake drum another direction in described clockwise direction and described counter clockwise direction than the major diameter spring section than the minor diameter spring section.
19. the covering system that is used to cover architectural opening according to claim 14 is characterized in that, described output spool is mounted for rotating clockwise with on the counter clockwise direction; And the described covering system that is used to cover architectural opening also comprises:
Brake drum, described brake drum is being connected on the function on the described output spool, makes the rotation of described output spool cause the rotation of described brake drum;
Shell; And
First helical spring, described first helical spring is installed on the described brake drum, described first helical spring comprises first end that is fixed on the described shell, when described output spool described clockwise with counterclockwise in a direction on during rotation described first helical spring draw on the described brake drum.
20. a covering system that is used to cover architectural opening, it comprises:
Overburden movably;
First axostylus axostyle, described first axostylus axostyle is connected on the described overburden in operation;
Second axostylus axostyle, described second axostylus axostyle is connected on the described overburden in operation;
Shell; And
Spring in described shell;
Wherein, described first axostylus axostyle and described second axostylus axostyle pass completely through described shell and extend, and described first axostylus axostyle engages described spring in operation, and described second axostylus axostyle does not engage described spring in operation.
21. the covering system that is used to cover architectural opening according to claim 20, it is characterized in that, described spring is a leaf spring, and the described covering system that is used to cover architectural opening also comprises the output spool on the end that is connected to described leaf spring, and described first axostylus axostyle engages described spring in operation by engaging described output spool.
22. the covering system that is used to cover architectural opening according to claim 20, it is characterized in that, described spring is a helical spring, and the described covering system that is used to cover architectural opening also comprises brake drum, described brake drum engages described helical spring, and described first axostylus axostyle engages described spring in operation by engaging described brake drum.
23. the covering system that is used to cover architectural opening according to claim 20 is characterized in that, described first with described second parallel to each other.
24. the covering system that is used to cover architectural opening according to claim 23 is characterized in that described overburden has width dimensions and length dimension, and described axostylus axostyle strides across one in described width dimensions and the height dimension basically.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US90907707P | 2007-03-30 | 2007-03-30 | |
| US60/909,077 | 2007-03-30 | ||
| US60/909077 | 2007-03-30 | ||
| US11/876360 | 2007-10-22 | ||
| US11/876,360 US7740045B2 (en) | 2006-10-25 | 2007-10-22 | Spring motor and drag brake for drive for coverings for architectural openings |
| US11/876,360 | 2007-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101275456A true CN101275456A (en) | 2008-10-01 |
| CN101275456B CN101275456B (en) | 2013-03-13 |
Family
ID=39995261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101988899A Active CN101275456B (en) | 2007-03-30 | 2007-12-12 | Spring transmission and drag brake for drive for coverings for architectural openings |
Country Status (3)
| Country | Link |
|---|---|
| KR (2) | KR101517228B1 (en) |
| CN (1) | CN101275456B (en) |
| TW (1) | TWI465636B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803721A (en) * | 2009-04-21 | 2012-11-28 | 亨特道格拉斯有限公司 | Spring Motor For Drive For Coverings For Architectural Openings |
| CN110612381A (en) * | 2017-04-14 | 2019-12-24 | 尚飞运营有限公司 | Method for manufacturing drum member and spring brake of electro-mechanical actuator, related electro-mechanical actuator and home automation equipment |
| US11111721B2 (en) | 2006-10-25 | 2021-09-07 | Hunter Douglas Inc. | Cord drive for coverings for architectural openings |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102051896B1 (en) * | 2018-01-09 | 2019-12-06 | (주)한국윈텍 | Cordless blind apparatus |
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- 2007-11-22 TW TW096144316A patent/TWI465636B/en active
- 2007-12-12 CN CN2007101988899A patent/CN101275456B/en active Active
- 2007-12-17 KR KR1020070132310A patent/KR101517228B1/en active IP Right Grant
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| US3450365A (en) * | 1967-05-19 | 1969-06-17 | Joseph Kaplan | Bi-directional limit torque slip element |
| US4869357A (en) * | 1988-07-28 | 1989-09-26 | Batchelder James W | Overrunning clutch with grooved bushing for reception of spring coil |
| JPH08121057A (en) * | 1994-10-24 | 1996-05-14 | Toso Co Ltd | Manually opening/closing type roll screen device |
| CN1206445A (en) * | 1996-10-23 | 1999-01-27 | 大和胶带株式会社 | Balance type shutter and balancer therefor |
| JP2000088006A (en) * | 1998-09-17 | 2000-03-28 | Tsukasa Denko Kk | Geared motor, drive device, and opening/closing door |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11111721B2 (en) | 2006-10-25 | 2021-09-07 | Hunter Douglas Inc. | Cord drive for coverings for architectural openings |
| US12049787B2 (en) | 2006-10-25 | 2024-07-30 | Hunter Douglas Inc. | Cord drive for coverings for architectural openings |
| CN102803721A (en) * | 2009-04-21 | 2012-11-28 | 亨特道格拉斯有限公司 | Spring Motor For Drive For Coverings For Architectural Openings |
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| CN110612381A (en) * | 2017-04-14 | 2019-12-24 | 尚飞运营有限公司 | Method for manufacturing drum member and spring brake of electro-mechanical actuator, related electro-mechanical actuator and home automation equipment |
| CN110612381B (en) * | 2017-04-14 | 2020-12-15 | 尚飞运营有限公司 | Method for manufacturing drum member and brake, actuator, and home automation device |
| US11149492B2 (en) | 2017-04-14 | 2021-10-19 | Somfy Activites Sa | Methods for manufacturing a drum and a spring brake for an electromechanical actuator, associated electromechanical actuator and home automation installation |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080089140A (en) | 2008-10-06 |
| KR20150005890A (en) | 2015-01-15 |
| KR101517228B1 (en) | 2015-05-04 |
| TW200839081A (en) | 2008-10-01 |
| CN101275456B (en) | 2013-03-13 |
| TWI465636B (en) | 2014-12-21 |
| KR101517334B1 (en) | 2015-05-04 |
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