CN2635880Y - Single direction driving device for lifting/lowering curtain and curtain using same - Google Patents
Single direction driving device for lifting/lowering curtain and curtain using same Download PDFInfo
- Publication number
- CN2635880Y CN2635880Y CNU032726465U CN03272646U CN2635880Y CN 2635880 Y CN2635880 Y CN 2635880Y CN U032726465 U CNU032726465 U CN U032726465U CN 03272646 U CN03272646 U CN 03272646U CN 2635880 Y CN2635880 Y CN 2635880Y
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- China
- Prior art keywords
- curtain
- shaft
- output shaft
- force
- decending
- Prior art date
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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
- E06B9/28—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
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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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
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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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
- E06B2009/905—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions using wrap spring clutches
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
- Blinds (AREA)
Abstract
The utility model provides a single direction driving device for a lifting/lowering curtain, which is arranged on the upper horizontal frame of a curtain. The utility model comprises an input shaft which can be driven to rotate by a user, an output shaft which is sheathed with a fixed shaft, a drive shaft and at least one spiral spring, wherein the output shaft is connected with the input shaft and can be driven to rotate. The drive shaft is sheathed with the output shaft and connected with the coupled rod of the curtain, and the inner peripheral surface of the drive shaft is provided with a convex part extending in the pipe wall gap of the output shaft. The spiral spring is provided with two contact parts that projects radically from the spiral part. The spring is wound and sheathed on the fixed shaft and positioned at the inner side of the output shaft. The two contact parts extend in the gap and is positioned at different sides of the convex part. The output shaft can push the spring and the drive shaft to rotate with the output shaft. Thus, the output shaft can drive the shielding component of the curtain to lift and lower by permeating the coupled rod. When the drive shaft is driven by the weight of the shielding component and is to rotate, the spring can be tied up and clamped.
Description
Technical field
The utility model is relevant with curtain, particularly about a kind of ascending/decending curtain (for example blind or roller shutter etc.) that is applied to, operator's the shield assemblies (referring to curtain leaf or curtain curtain etc.) that control strength can transmit smoothly to drive curtain of driving is down stretched or up condensation, but the unidirectional transmission of the unlikely passback of sinking gravity of shield assemblies, and the ascending/decending curtain of using this transmission device.
Background technology
General ascending/decending curtain is to overhang the pelletron of curtain side or stay cord with one to put for circulate pulling or pull on down of user mostly, down stretches or up condensation to control shield assemblies (referring to curtain leaf or curtain curtain etc.); But owing to the exposing stay cord and may tangle with the people and meet accident of this type of curtain, therefore industry is just being endeavoured to research and develop and is not being had the hand-operated curtain that exposes stay cord recently.
Existing nothing exposes one of ascending/decending curtain pattern of stay cord, be that upper transverse frame (headrail) at curtain is provided with one and is incorporated into mechanical axis and the shaft drive of exerting oneself, inputting shaft wherein can directly be subjected to the user to drive control and original place rotation (for example down extending a control lever by inputting shaft rotates for the user, or capable again the turning of up prominent slotting this inputting shaft of the hand-held control lever of separating of user) with curtain, this force-output shaft is driven by inputting shaft then can and the original place rotates, and force-output shaft is and coaxial joint of a trace that is hubbed on this upper transverse frame, this trace can drive curtain when rotating shield assemblies down stretches or up condensation, discloses as French FR-2692002 patent case.
In order to make shield assemblies can be positioned at adjusted height, above-mentioned curtain is that the stay cord winding mode with complexity cooperates a stay cord tensioning device to stop shield assemblies because of down sedimentation of own wt, however this method trouble comparatively on assembling operation; Other has the unidirectional transmission function of a kind of plain type, promptly is as aforementioned inputting shaft and force-output shaft with mutually chimeric worm screw and worm gear; In theory, the chimeric angle of worm and wheel is in certain scope the time, and the function worm screw that has unidirectional transmission really can drive worm gear by less driving force, but worm gear then must could drive worm screw with big driving force; Yet on practice is used, normal preponderance because of the curtain shield assemblies, or make stressed upper limit deficiency because of scantling, the non-return effect of the torsion of aforementioned worm and worm gear is also certain inadequately, the shield assemblies that causes curtain after adjusting height immediately the location can sink a little again, or the location can sink again when firmly being collided inadequately, remains further to be improved.
The utility model content
Main purpose of the present utility model is promptly at the unidirectional transmission that a kind of ascending/decending curtain is provided, it is to be applied to not have in the ascending/decending curtain that exposes stay cord, can make driving control strength and being sent to the end of exerting oneself smoothly and down stretching or up condensation of operator with the shield assemblies that drives curtain, but the unlikely force entering end that is back to of the sinking gravity of shield assemblies can be stablized by this positively this shield assemblies to be positioned at and expect highly.
Another purpose of the present utility model after its shield assemblies is adjusted height, can stably be positioned height at that time then at the ascending/decending curtain that provides a kind of nothing to expose stay cord immediately.
Take off main purpose for before reaching, the unidirectional transmission that the utility model provides is to include: a pedestal, be located at the upper transverse frame (headrail) of curtain, and have a horizontal fixed axis; One inputting shaft is hubbed at this pedestal with end form down wherein, is available for users to drive control and the original place rotation; One force-output shaft has a beam barrel portion, is placed in this fixed axis with this beam barrel portion pivot, and plugs into this inputting shaft and can be subjected to drive and rotate as the original place; The perisporium of this beam barrel portion has a breach; One power transmission shaft has the simple portion of a cover, is sheathed on the beam barrel portion of this force-output shaft with this sleeve part; The inner peripheral surface of this sleeve part has a protuberance, and this protuberance is the breach that is positioned at this force-output shaft; This power transmission shaft is can compel mutually with coaxial joint of a trace that is hubbed on this upper transverse frame to change, and the shield assemblies that can drive curtain during this trace rotation down stretches or up condensation; At least one helical spring respectively has a cylindrical spire, and radially two of protrusion supports portion outward by spire is general; The spire of each spring is around the fixed axis that is placed in this pedestal, and the position is in the beam barrel portion inboard of this force-output shaft, and this two supports portion and then convexedly stretch in the breach of this force-output shaft, and respectively the position in the different sides of protuberance on circumference of this power transmission shaft; And, can these breach lateral margin pushing and pressing during the rotation of this force-output shaft respectively this spring wherein one support portion, and make expansions of taking advantage of a situation of the spire internal diameter of spring, this force-output shaft can drive this power transmission shaft smoothly and rotates by this; When force-output shaft motionless, can the pushing and pressing of this protuberance when this power transmission shaft is subjected to this shield assemblies sinking driven rotary respectively this spring wherein one support portion, and the spire internal diameter of spring is taken advantage of a situation dwindle, this power transmission shaft can block immediately and ends and can't continue rotation by this.
For taking off another purpose before reaching, the ascending/decending curtain that the utility model provides is to include: a upper transverse frame; One shield assemblies is located at this upper transverse frame below, can down stretch or up condensation; One trace is hubbed at this upper transverse frame, can drive during rotation that this shield assemblies down stretches or up condensation; One unidirectional transmission, the i.e. described structure of leading portion; One control lever can engage with the inputting shaft of this unidirectional transmission, and can drive the control rotation for the operator, to drive this inputting shaft original place rotation.
Now cooperate graphic act one preferred embodiment that structure of the present utility model and effect are elaborated.
Description of drawings
Fig. 1 is the structural representation of the ascending/decending curtain of the utility model one preferred embodiment;
Fig. 2 is the front section view of the unidirectional transmission in the utility model one preferred embodiment;
Fig. 3 is the sectional view along 3-3 hatching line among Fig. 2;
Fig. 4 is the sectional view along 4-4 hatching line among Fig. 2;
Fig. 5 is the stereogram of the tubular spare in the utility model one preferred embodiment;
Fig. 6 is chimeric a stereogram in the utility model one preferred embodiment;
Fig. 7 is the helical spring stereogram in the utility model one preferred embodiment;
Fig. 8 is Fig. 4 roughly the same, is the action schematic diagram of the utility model one preferred embodiment, the state when illustrating the mechanical axis rotation; And
Fig. 9 is Fig. 4 roughly the same also, is another action schematic diagram of the utility model one preferred embodiment, is the state when illustrating the motionless and power transmission shaft desire rotation of mechanical axis.
The specific embodiment
Please consult Fig. 1 earlier, it is ascending/decending curtain one preferred embodiment that nothing that the utility model provides exposes stay cord, be to present a demonstration in the legend with blind, but but the utility model also equivalent application in roller shutter, pleated curtain or roman shade various ascending/decending curtain such as (Roman blind).As shown in the figure, this curtain includes substantially: a upper transverse frame 12, in order to be fixed in window apical margin position; One shield assemblies 14 is located at upper transverse frame 12 belows, in order to cover window, constituted by some parallel curtain leaves 16 arranged side by side, these curtain leaves can down disperse the expansion or up congruent set contracts; One trace 18, laterally be hubbed at upper transverse frame 12 inside, the original place can drive this shield assemblies 14 when rotating and down stretch or up condensation, also be to continue to use existing structure in this example, promptly, utilize two suspension ropes, 20 1 the first from left to part on the right side and vertically do not run through these curtain leaves 16, and each sheer pole 22, top that the bottom is linked to curtain leaf 16 bottom sides is linked to the spool 24 on this trace 18 and reaches; One unidirectional transmission 26 is located at the wherein end of upper transverse frame 12, is creation emphasis of the present utility model, and detailed after the structure, major function is passed to the end of exerting oneself at the torsion with its force entering end, and can stop torsion to be held by exerting oneself to pass force entering end back; One control lever 28 has a straight-bar 30, is connected in after these unidirectional transmission 26 below syndetons detailedly with dangling, and the bottom is provided with a crank 32, is available for users to rotate torsion is imported this transmission device 26.
Then see also Fig. 2 and Fig. 3, this unidirectional transmission 26 is to include:
One pedestal 34 is formed by a main casing spare 36 and a subshell spare 38 involutory lockings, and the longitudinal section is generally rectangular, be to be embedded in aforementioned upper transverse frame 12 interior views 3 that shape cooperatively interacts, and be positioned upper transverse frame 12 wherein this example of end for left end.Pedestal 34 inside are formed with a cylindrical tank 40 coaxial with aforementioned trace 18 by the side of these upper transverse frame 12 outer ends more partially, this tank 40 is communicated with but a cylindrical axis hole 42 that diameter less coaxial with it by one of these upper transverse frame 12 inboards end more partially, and this axis hole 42 is that break-through is to pedestal 34 surfaces.By the center of tank 40 away from the end face of axis hole 42, along axially protruding out a fixed axis 44 that passes outside the pedestal 34 toward axis hole 42 directions, this fixed axis 44 is hollow tubular, place, nearly outer end forms a minor diameter part 46, and the periphery of outermost end forms the shape of splaying, simultaneously, have on the tube wall, make that fixed axis 44 outer ends are brought together slightly by relative two notches 48 of ora terminalis toward interior extension.The corner in the left side in the pedestal 34 bottom respective chamber/chambers among a side Fig. 3 has one by the pivot hole 50 of the oblique radially break-through in outside to this tank 40.
One inputting shaft 52 is a bevel gear, has an axle portion 54 and is linked to the helical gear portion 56 of axle portion one end.This inputting shaft 52 is the pivot holes 50 that are hubbed at this pedestal 34 with axle portion 54, makes 56 in helical gear portion in this tank 40, and axle portion 54 bottoms stretch out in pedestal 34 and upper transverse frame 12 outsides, points to an indoor side obliquely down.In addition, axle portion 54 bottoms are provided with a radial perforation 58; Straight-bar 30 tops of aforementioned control lever 28 are to collude with a crotch 60 to be around in this perforation 58, make control lever 28 tops be linked to inputting shaft 52 bottoms in the mode of multi-directionally activity, and can drive inputting shaft 52 rotations during control lever 28 rotation.
One force-output shaft 62 is a bevel gear in fact also, has a beam barrel portion 64 and is linked to the helical gear portion 66 of beam barrel portion one end.This force-output shaft 62 is the fixed axis 44 that are sheathed on this pedestal 34 with beam barrel portion 64, makes 66 in helical gear portion in this tank 40, and closes with the helical gear portion 56 of this inputting shaft 52.In the present embodiment, helical gear portion 56 numbers of teeth of inputting shaft 52 are helical gear portion 66 numbers of teeth that are less than force-output shaft 62, reach the transmission effect of times power of slowing down by this.Please cooperate in addition again and consult Fig. 4, have a breach 68 on the perisporium of this beam barrel portion 64, the width of this breach 68 on circumference is about one of four circles.
One power transmission shaft 70 is to reach one chimeric 74 outward appearance as shown in Figure 5 with a tubular spare 72 outward appearances to form as shown in Figure 6 based on the assembling practice in the present embodiment.This tubular spare 72 has cup-shaped without exception sleeve part 76, the end face center of this sleeve part 76 has the beam tube 78 of a break-through vertically, and around this beam tube 78 of outer face, outwards protrude out the flexible barb 80 that three isogonisms distribute, each barb 80 tail end is by interior hook outward.The inner peripheral surface of this sleeve part 76 has a strip convex part 82 that extends vertically.This tubular spare 72 be sheathed on this force-output shaft 62 with sleeve part 76 ring with pasting beam barrel portion 64 peripheries again, sleeve part 76 peripheries are that ring is affixed on axis hole 42 perisporiums of this pedestal 34, and this protuberance 82 of sleeve part 76 inner peripheral surfaces be the position in the breach 68 of this beam barrel portion 64 as shown in Figure 4; It is fashionable to overlap, and the beam tube 78 of tubular spare 72 utilizes the aforementioned shape and the nested minor diameter part 46 to fixed axis 44 of the ability of bringing together splayed of fixed axis 44 ends by fixed axis 44 outer ends of this pedestal 34; By this, this tubular spare 72 and this force-output shaft 62 all are hubbed on this fixed axis 44 in rotation mode freely, do not have the danger that comes off.
On the other hand, this chimeric 74 is round peviform, has three draw-in grooves 84 that isogonism distributes on the perisporium, and the end face center has the embedding hole 86 of a break-through vertically, and the cross sectional shape in this embedding hole 86 cooperates the cross sectional shape of aforementioned trace 18 for example to be regular hexagon.This chimeric 74 is with mode and the tubular spare fit of opening towards this tubular spare 72, and the flexible barb 80 tail ends difference hook that makes tubular spare 72 so makes the two 7274 aforementioned power transmission shaft 70 of composition and synchronization action in chimeric 74 draw-in groove 84.And chimeric 74 embedding hole 86 is coaxial chimeric with the end of this trace 18, makes power transmission shaft 70 to compel mutually to change with trace 18.
Two helical springs 88, the outward appearance of each spring 88 as shown in Figure 7, be to include a cylindrical spire 90, and one of radially protrude first outward by these spire 90 2 ends respectively and support portion 92 and one second and support portion 92, wherein, this two angle that supports portion 9294 is about 90 degree, and the spire 90 of spring 88 is to bend outward in the inboard of aforementioned angle and form the portion 9294 that respectively supports.This two spring 88 is the modes with hand of spiral unanimity, make spire 90 around a fixed axis 44 that is placed in this pedestal 34 and beam barrel portion 64 inboard at this force-output shaft 62, and, as shown in Figure 4, this of each spring 88 two supports portion 9294 and convexedly stretches in the breach 68 of force-output shaft 62, and respectively the position in the different sides of protuberance 82 on circumference of this power transmission shaft 70; In this example, two of spring 88 support relative two lateral margins that portion 9294 is against this breach 68 respectively.
The ascending/decending curtain that more than is the utility model one preferred embodiment is wherein the detailed structure of unidirectional transmission particularly.By on take off structure, if the user is will adjust the dead area of this curtain the time, but the crank 32 of these control lever 28 bottoms of rocking-turn makes its straight-bar 30 according to predetermined rotation direction rotation, uses inputting shaft 52 corresponding rotation that drive this unidirectional transmission 26 of top.When inputting shaft 52 was turned, the force-output shaft 62 that closes with it promptly can be driven and corresponding rotation.See also Fig. 4, when force-output shaft 62 rotations, be that the homonymy that can push against each helical spring 88 with breach 68 certain side of beam barrel portion 64 supports portion's 9294 notes: according to drawing, if the rotation of force-output shaft 62 inverse clocks promptly can push against first and support portion 92, if the clockwise rotation promptly can push against second and support portion 94, and based on the spire 90 and the two aforementioned passes of supporting portion 9294 of spring 88 be, be regardless of rotation direction when force-output shaft 62 during along the portion 9294 that supports of circumference pushing clamping spring 88, be to promote its end by terminal toward the inboard hand of spiral along spring 88, make spire 90 internal diameters of spring 88 enlarge slightly, and be able to loosely on this fixed axis 44, rotate, so, force-output shaft 62 can successfully be subjected to inputting shaft 52 driven rotary because of promoting spring 88 rotations.Suppose that the user orders about force-output shaft 62 to be the inverse clock rotation in Fig. 4, then as shown in Figure 8, after force-output shaft 62 appropriateness rotations, the predetermined lateral margin of breach 68 promptly can support the strip convex part 82 that reaches this power transmission shaft 70 indirectly, next, force-output shaft 62 is that the sustainable power transmission shaft 70 that pushes is with its synchronous rotation.Can directly drive the aforementioned trace 18 original places rotation chimeric during power transmission shaft 70 rotations with it, make two spools 24 on the trace 18 up furl or down discharge this two suspension rope 20, use making these curtain leaves 16 that is shield assemblies 14 up condensation or down stretching, extension, and change the area that covers window.
After being adjusted to desired height, the user can decontrol this control lever 28, and at this moment, the weight of shield assemblies 14 can down be pullled suspension rope 20, and produces the torsion that drives this trace 18 and 70 rotations of this power transmission shaft; Yet, see also Fig. 9, suppose that aforementioned torsion is to make the rotation of power transmission shaft 70 clockwises, then power transmission shaft 70 is after just will rotating or rotate slightly angle, the strip convex part 82 of inner circumferential surface promptly can support and this two spring 88 first support portion 92, this moment is just opposite with status, power transmission shaft 70 is along the portion 92 that supports of circumference pushing clamping spring 88, be to push its end by inboard toward the terminal hand of spiral along spring 88, make spire 90 internal diameters of spring 88 dwindle slightly, on this fixed axis 44, can't rotate and tightly restraint; So, power transmission shaft 70 is subjected to spring 88 and supports fastening of portion 92 and can't rotate the also unlikely down sedimentation of shield assemblies 14 at once.
By above-mentioned mechanism, after the user is adjusted to desired height with the shield assemblies of curtain, need carry out other actions shield assemblies is locked in addition; In case the user does not rotate this control lever, that is the inputting shaft of this unidirectional transmission turned, and shield assemblies will terminate in height at that time at once surely, and is not only very convenient in operation, and shield assemblies is to stablize location positively, is difficult for arbitrarily gliding.In addition, cooperate the structure of this unidirectional transmission, this ascending/decending curtain is to control the lifting of shield assemblies with control lever for the user, does not have the pelletron or the stay cord that expose, can avoid rope and people to tangle and meets accident.
What must remark additionally is that inputting shaft and force-output shaft in this one-way driving mechanism of the utility model are in order to converting the outputting torsion according to the X rotation to generally according to the input torsion of Y rotation; Except on take off the bevel gear of embodiment, also can adopt certainly worm screw as inputting shaft, with worm gear as force-output shaft, so can make the non-return effect of torsion more certain.
In addition, this one-way driving mechanism of the utility model is having more following advantage except having unidirectional torque transmission and making the function of the certain location of curtain aspect the thin portion spatial design:
One, modularity design, assembling is convenient: one-way driving mechanism of the present utility model, utilize a pedestal to be coated with this each member, form design of modularization, therefore when the assembling operation of curtain, only need the curtain trace directly is inserted in this one-way driving mechanism, even, can change the outfit fast in maintenance in the future.
Two, volume is small and exquisite: inputting shaft design of the present utility model, and the drive link of vertical arrangement engages as strength transmission with control lever originally cleverly; This inputting shaft bottom is convexly equipped with outside the pedestal simultaneously, and control lever can be connected fast, makes single inputting shaft member have multiple function concurrently, simplifies member in a large number, makes the space be minimized.
Therefore person in sum only be a preferable possible embodiments of the present invention, so use the equivalent structure variation that manual of the present invention and claim are done such as, ought to be considered as creation spirit of the present invention.
Claims (18)
1. the unidirectional transmission of an ascending/decending curtain, this curtain has the shield assemblies that trace, that a upper transverse frame, is hubbed at this upper transverse frame is located at this upper transverse frame below, can drive during the rotation of this trace that this shield assemblies down stretches or up condensation, it is characterized in that this unidirectional transmission includes:
One pedestal is located at this upper transverse frame, has a horizontal fixed axis;
One inputting shaft is hubbed at this pedestal with end form down wherein, is available for users to drive control and the original place rotation;
One force-output shaft has a beam barrel portion, is placed in the fixed axis of this pedestal with this beam barrel portion pivot, and plugs into this inputting shaft and driven by this inputting shaft to rotate as the original place; The perisporium of this beam barrel portion has a breach;
One power transmission shaft has a sleeve part, is sheathed on the beam barrel portion of this force-output shaft with this sleeve part; The inner peripheral surface of this sleeve part has a protuberance, and this protuberance is the breach that is positioned at this force-output shaft; This power transmission shaft is can compel mutually with coaxial joint of aforementioned trace to change; And
At least one helical spring respectively has a cylindrical spire, and one of generally radially protrudes first outward by this spire and support portion and one second and support portion; Respectively the spire of this spring is around the fixed axis that is placed in this pedestal, and the position is in the beam barrel portion inboard of this force-output shaft, and this two supports portion and then convexedly stretch in the breach of this force-output shaft, and respectively the position in the different sides of protuberance on circumference of this power transmission shaft; And, can these breach lateral margin pushing and pressing during the rotation of this force-output shaft respectively this spring wherein one support portion, and make the expansion of taking advantage of a situation of the spire internal diameter of spring; When this force-output shaft motionless, can these protuberance pushing and pressing during the rotation of this power transmission shaft respectively this spring wherein one support portion, and the spire internal diameter of spring is taken advantage of a situation dwindle.
2. the unidirectional transmission of ascending/decending curtain as claimed in claim 1 is characterized in that, described this inputting shaft and this force-output shaft are a bevel gear.
3. the unidirectional transmission of ascending/decending curtain as claimed in claim 1 is characterized in that, described this inputting shaft is a worm screw, and this force-output shaft is a worm gear.
4. the unidirectional transmission of ascending/decending curtain as claimed in claim 1 is characterized in that, two of described respectively this spring supports portion and protruded outward by two ends of this spire respectively.
5. the unidirectional transmission of ascending/decending curtain as claimed in claim 1 is characterized in that, described this pedestal is to be formed by a main casing spare and the involutory locking of a subshell spare.
6. the unidirectional transmission of ascending/decending curtain as claimed in claim 1, it is characterized in that, described this base interior is formed with a cylindrical tank and and the cylindrical axis hole that be communicated with coaxial with it, this axis hole be break-through to base-plates surface, make this fixed axis by this tank along axially outside the axis hole direction protrudes out this pedestal.
7. the unidirectional transmission of ascending/decending curtain as claimed in claim 1 is characterized in that, the fixed axis of described this a pedestal closely wherein end place forms a minor diameter part, and this end have one by end face toward the notch of interior extension, make that this end is brought together slightly; The sleeve part of this power transmission shaft is generally cup-shaped, and its end face center has the beam tube of a break-through vertically, and this beam tube is the minor diameter part that is nested in this fixed axis.
8. the unidirectional transmission of ascending/decending curtain as claimed in claim 1 is characterized in that, described this power transmission shaft is made up of a tubular spare and one chimeric institute; This tubular spare has general cup-shaped aforementioned sleeve part, outwards protrudes out some flexible barbs by the outer peripheral face of this sleeve part; This chimeric peviform that generally is opening towards this tubular spare has the flexible barb tail end hook that some draw-in grooves are subjected to this tubular spare on its perisporium; This end face center of chimeric has an embedding hole, uses for aforementioned trace intercalation.
9. a nothing exposes the ascending/decending curtain of stay cord, it is characterized in that, be to include:
One upper transverse frame;
One shield assemblies is located at this upper transverse frame below, can down stretch or up condensation;
One trace laterally is hubbed at this upper transverse frame, but the original place rotate, and can drive that this shield assemblies down stretches or up condensation when rotating according to its rotation direction;
One unidirectional transmission is to include a pedestal, an inputting shaft, a force-output shaft, a power transmission shaft and at least one helical spring; Wherein:
This pedestal is located at this upper transverse frame, has a horizontal fixed axis;
This inputting shaft is hubbed at this pedestal with end form down wherein;
This force-output shaft has a beam barrel portion, is placed in the fixed axis of this pedestal with this beam barrel portion pivot, and plugs into this inputting shaft and driven by this inputting shaft to rotate as the original place; The perisporium of this beam barrel portion has a breach;
This power transmission shaft has a sleeve part, is sheathed on the beam barrel portion of this force-output shaft with this sleeve part; The inner peripheral surface of this sleeve part has a protuberance, and this protuberance is the breach that is positioned at this force-output shaft; This power transmission shaft is can compel mutually with coaxial joint of aforementioned trace to change;
Respectively this helical spring has a cylindrical spire, and one of generally radially protrudes first outward by this spire and support portion and one second and support portion; Respectively the spire of this spring is around the fixed axis that is placed in this pedestal, and the position is in the beam barrel portion inboard of this force-output shaft, and this two supports portion and then convexedly stretch in the breach of this force-output shaft, and respectively the position in the different sides of protuberance on circumference of this power transmission shaft; And, can these breach lateral margin pushing and pressing during the rotation of this force-output shaft respectively this spring wherein one support portion, and make the expansion of taking advantage of a situation of the spire internal diameter of spring; When this force-output shaft motionless, can these protuberance pushing and pressing during the rotation of this power transmission shaft respectively this spring wherein one support portion, and the spire internal diameter of spring is taken advantage of a situation dwindle;
One control lever engages with this inputting shaft bottom, is available for users to turn and drives the rotation of this inputting shaft original place.
10. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this inputting shaft and this force-output shaft are a bevel gear.
11. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this inputting shaft is a worm screw, and this force-output shaft is a worm gear.
12. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, two of described respectively this spring supports portion and is protruded outward by two ends of this spire respectively.
13. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this pedestal is to be formed by a main casing spare and the involutory locking of a subshell spare.
14. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this base interior is formed with a cylindrical tank and and the cylindrical axis hole that be communicated with coaxial with it, this axis hole be break-through to base-plates surface, make this fixed axis by this tank along axially outside the axis hole direction protrudes out this pedestal.
15. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, the fixed axis of described this a pedestal closely wherein end place forms a minor diameter part, and this end have one by end face toward the notch of interior extension, make that this end is brought together slightly; The sleeve part of this power transmission shaft is generally cup-shaped, and its end face center has the beam tube of a break-through vertically, and this beam tube is the minor diameter part that is nested in this fixed axis.
16. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this power transmission shaft is made up of a tubular spare and one chimeric institute; This tubular spare has general cup-shaped aforementioned sleeve part, outwards protrudes out some flexible barbs by the outer peripheral face of this sleeve part; This chimeric peviform that generally is opening towards this tubular spare has the flexible barb tail end hook that some draw-in grooves are subjected to this tubular spare on its perisporium; This end face center of chimeric has an embedding hole; This trace one end is to be intercalated in this embedding hole.
17. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this unidirectional transmission is to be located at this upper transverse frame one end; This control lever is that the top is connected in this inputting shaft bottom in the mode of multi-directionally activity, overhangs this upper transverse frame below at ordinary times.
18. nothing as claimed in claim 9 exposes the ascending/decending curtain of stay cord, it is characterized in that, described this control lever is an individual member, in separable mode its top is embedded in this inputting shaft bottom during use.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032726465U CN2635880Y (en) | 2003-07-17 | 2003-07-17 | Single direction driving device for lifting/lowering curtain and curtain using same |
| EP03018245A EP1498570A1 (en) | 2003-07-17 | 2003-08-11 | Wrap clutch device for anti-reverse transmission and window blind using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032726465U CN2635880Y (en) | 2003-07-17 | 2003-07-17 | Single direction driving device for lifting/lowering curtain and curtain using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635880Y true CN2635880Y (en) | 2004-08-25 |
Family
ID=33459855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032726465U Expired - Fee Related CN2635880Y (en) | 2003-07-17 | 2003-07-17 | Single direction driving device for lifting/lowering curtain and curtain using same |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1498570A1 (en) |
| CN (1) | CN2635880Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316532B (en) * | 2005-09-28 | 2010-10-06 | 亨特道格拉斯有限公司 | Roll up covering for architectural openings having top down/bottom up capability |
| CN103748306A (en) * | 2011-08-25 | 2014-04-23 | 金桢旼 | Roll blind having single safety cord |
| CN103946473A (en) * | 2011-11-22 | 2014-07-23 | 金桢旼 | Roll blind having noiseless bidirectional clutch |
| CN109869085A (en) * | 2017-12-04 | 2019-06-11 | 协骏股份有限公司 | Removable ropewinder for no exposed pulling rod formula curtain |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295220B (en) * | 2014-09-30 | 2016-08-24 | 广州嘉伦橡塑有限公司 | A kind of curtain unidirectional control device with clamping function and curtain thereof |
| CN104329010B (en) * | 2014-09-30 | 2016-06-22 | 广州嘉伦橡塑有限公司 | An a kind of key stretches curtain unidirectional control device and the curtain thereof of curtain landing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57114095U (en) * | 1981-01-08 | 1982-07-14 | ||
| DE3536160A1 (en) * | 1985-10-10 | 1987-04-23 | Starcke Zuendwarenfab | SIDE TRAIN ROLLER |
| US5927370A (en) * | 1997-11-18 | 1999-07-27 | Judkins; Ren | Release brake shade operator |
| IT244838Y1 (en) * | 1998-03-12 | 2002-03-14 | Gaposa Srl | TUBULAR GEARMOTOR FOR HANDLING SHUTTERS AND ROLLING SHUTTERS |
-
2003
- 2003-07-17 CN CNU032726465U patent/CN2635880Y/en not_active Expired - Fee Related
- 2003-08-11 EP EP03018245A patent/EP1498570A1/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316532B (en) * | 2005-09-28 | 2010-10-06 | 亨特道格拉斯有限公司 | Roll up covering for architectural openings having top down/bottom up capability |
| CN103748306A (en) * | 2011-08-25 | 2014-04-23 | 金桢旼 | Roll blind having single safety cord |
| CN103748306B (en) * | 2011-08-25 | 2015-08-12 | 金桢旼 | There is the roller shutter of single safety line |
| CN103946473A (en) * | 2011-11-22 | 2014-07-23 | 金桢旼 | Roll blind having noiseless bidirectional clutch |
| CN109869085A (en) * | 2017-12-04 | 2019-06-11 | 协骏股份有限公司 | Removable ropewinder for no exposed pulling rod formula curtain |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1498570A1 (en) | 2005-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040825 |