CN221322222U - Retracting mechanism of curtain without pull rope - Google Patents
Retracting mechanism of curtain without pull rope Download PDFInfo
- Publication number
- CN221322222U CN221322222U CN202322047928.2U CN202322047928U CN221322222U CN 221322222 U CN221322222 U CN 221322222U CN 202322047928 U CN202322047928 U CN 202322047928U CN 221322222 U CN221322222 U CN 221322222U
- Authority
- CN
- China
- Prior art keywords
- cone
- shaped cylinder
- lower beam
- roller
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 19
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000013016 damping Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Curtains And Furnishings For Windows Or Doors (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The utility model discloses a retraction mechanism of a curtain without a pull rope, which is arranged in a lower beam and comprises two retraction belt boxes, a rotating shaft and a driving braking device, wherein the two retraction belt boxes are oppositely arranged in the lower beam and are respectively connected with retraction belts, the retraction belts can be retracted or released, the rotating shaft is rotatably arranged in the lower beam in an extending manner and is connected with the two retraction belt boxes, the two retraction belt boxes can be driven to retract or release the two retraction belts synchronously, the lower beam is lifted or lowered, the driving braking device comprises a first cone-shaped cylinder, a second cone-shaped cylinder, a connecting rope and a spring motor, the rotating shaft penetrates through the axle center of the first cone-shaped cylinder and can drive the first cone-shaped cylinder to rotate, and the spring motor is connected with one end of the first cone-shaped cylinder and the second cone-shaped cylinder and can apply reverse elastic force to the first cone-shaped cylinder and the second cone-shaped cylinder to provide lifting power for retraction and lower beam of each blade.
Description
Technical Field
The utility model relates to a curtain without a pull rope, in particular to a retraction mechanism of the curtain without the pull rope.
Background
The existing curtain can be structurally divided into a pull rope type curtain and a non-pull rope type curtain, and in the case of the pull rope type curtain, the curtain body is pulled by one pull rope outside the curtain body to enable the curtain body to be unfolded or folded; in contrast, the pull-rope-free type curtain is characterized in that the lower beam of the curtain is pushed up or pushed down by manpower, so that the curtain body is unfolded or folded.
In general, a conventional pull-cord-free window curtain is often configured to wind up or release a pull cord (or a winding/unwinding tape) through a winding device provided in an upper beam, and to raise or lower a lower beam relative to the upper beam. Typically, the movement of the lower beam is controlled by the user pushing up or pulling down the lower beam with both hands. However, although under normal operation, there is still a possibility that the lower beam is slightly inclined without being in a completely horizontal state when the lifting is stopped due to deviation in manual operation or uneven lap winding of the pulling rope in the wire winding device. This slight tilting of the lower beam appears visually unattractive as the stopping position of the lower beam is closer to the upper beam. Secondly, when the curtain body is completely folded, if the lower beam is in a slightly inclined state, a user often needs to pull the lower beam downwards by a large margin again, so that the pull rope is released from the wire winding device, and then pushes the lower beam upwards again to adjust the levelness of the lower beam, and the operation convenience is poor, time-consuming and labor-consuming.
For this reason, many operators develop related technologies for maintaining the levelness of the lower beam, and most of the related technologies are to provide a friction assembly or mechanism in the winding device of the upper beam to control the movement of the pull rope, so as to maintain the levelness of the lower beam and prevent the window curtain from sliding down at the highest point or bouncing at the lowest point, as shown in US9366077, US9482049, US7228797, etc., which are not repeated herein.
Although the above-mentioned patent and the related art which can maintain the levelness of the lower beam can certainly solve the above-mentioned problems, the wire winding device for controlling the pull rope is arranged on the upper beam, which has not changed for many years, and the movement effect of the pull rope controlled by friction force is not stable, and still can be improved.
Disclosure of Invention
The main object of the present utility model is to provide a retraction mechanism for a curtain without a pull cord, which can provide retraction power for the curtain, can keep the heights of the left and right ends of the lower beam consistent at any time, can not cause the problems of unbalanced and inclined lower beam, and can be positioned at a required position without pulling or applying force to the lower beam.
In order to achieve the above-mentioned objective, the present utility model provides a retraction mechanism for a curtain without a pull cord, the curtain without a pull cord comprises an upper beam, a lower beam, a plurality of blades between the upper beam and the lower beam, and two retraction belts penetrating through each blade to connect the upper beam and the lower beam, the retraction mechanism is disposed in the lower beam, comprises a plurality of retraction belt boxes, is disposed in the lower beam opposite to each other and is respectively connected with each retraction belt, and is capable of retracting or releasing each retraction belt; the rotating shaft is rotatably arranged in the lower beam in an extending way and is connected with the two retractable belt boxes, and when the rotating shaft rotates, the two retractable belt boxes can be driven to synchronously roll or release the two retractable belts, so that the lower beam ascends or descends; the driving braking devices comprise a first cone-shaped cylinder, a second cone-shaped cylinder, a connecting rope and a spring motor, wherein the rotating shaft penetrates through the axle center of the first cone-shaped cylinder and can drive the first cone-shaped cylinder to rotate, the first cone-shaped cylinder and the second cone-shaped cylinder are erected in the lower beam in a staggered mode, one end of the connecting rope is connected to one end of the first cone-shaped cylinder, the other end of the connecting rope is connected to one end of the second cone-shaped cylinder in an extending mode after being wound, the spring motor is connected to one end of the first cone-shaped cylinder and one end of the second cone-shaped cylinder, and reverse elastic force can be applied to the first cone-shaped cylinder and the second cone-shaped cylinder to provide power for winding and unwinding the blades and lifting the lower beam.
Preferably, the two retractable belts are sheet-shaped belt bodies, the two retractable belt boxes respectively comprise a rotating wheel, and each retractable belt is connected with each rotating wheel.
Preferably, the two retractable tape boxes respectively comprise a box body, the two box bodies are fixedly arranged in the lower beam, and the rotating wheels are respectively arranged in the box bodies and are connected in series by the rotating shaft.
Preferably, the extending direction of the rotating shaft is parallel to each blade, the upper beam and the lower beam, and the axial directions of the first cone-shaped cylinder and the second cone-shaped cylinder are parallel to the opposite blade, the upper beam and the lower beam.
Preferably, the driving brake device further comprises a connecting shaft rotatably penetrating through the axis of the second cone and parallel to the rotating shaft, the first cone and the second cone are erected in the lower beam and respectively comprise a large diameter end and a small diameter end, the first cone and the second cone are arranged in a mode that the large diameter end and the small diameter end are opposite, the surfaces of the first cone and the second cone are respectively provided with a rope groove in a spiral mode, one end of the connecting rope is connected with the large diameter end of the first cone, and the other end of the connecting rope is connected with the large diameter end of the second cone in an extending mode from the small diameter end after being wound in the rope groove.
Preferably, the spring motor comprises a first roller and a second roller, the first roller and the second roller are respectively connected with one ends of the first cone-shaped cylinder and the second cone-shaped cylinder, and an elastic piece, the two ends of the elastic piece are connected with the first roller and the second roller and can apply elastic force for enabling the first roller and the second roller to reversely rotate.
Preferably, the two ends of the elastic piece are wound with opposite vortex spring pieces.
Preferably, the rotating shaft is connected with the first cone-shaped cylinder, the first roller is sleeved on the rotating shaft without being linked with the rotating shaft, the elastic force at one end of the elastic piece is transmitted to the first cone-shaped cylinder and the rotating shaft through the first roller, the second roller is linked with the connecting shaft, and the elastic force at the other end of the elastic piece is transmitted to the connecting shaft and the second cone-shaped cylinder through the second roller.
Preferably, the driving brake device further comprises a base fixed on the top side of the inside of the lower beam, and the first cone-shaped cylinder, the second cone-shaped cylinder, the spring motor, the connecting shaft and the rotating shaft are erected on the base.
Preferably, the spring motor further comprises a cover plate covering the base to shield the first and second rollers and the elastic member.
The utility model has the beneficial effects that: the retraction mechanism of the curtain without the stay cord can provide retraction power of the curtain, can keep the heights of the left end and the right end of the lower beam consistent at any time, can not cause the problems of unbalance and inclination of the lower beam, and can be positioned at a required position without pulling or applying force to the lower beam.
Drawings
FIG. 1 is an external and partially exploded view of a preferred embodiment of the present utility model.
Fig. 2 is a bottom side and partially exploded perspective view of a jack in accordance with a preferred embodiment of the present utility model.
FIG. 3 is a schematic diagram of the operation of a preferred embodiment of the present utility model, showing the state of raising the lower beam.
Fig. 4 shows a state of the retraction mechanism when the lower beam is lifted in a preferred embodiment of the present utility model.
FIG. 5 is a schematic diagram of the operation of a preferred embodiment of the present utility model, showing the state of pulling down the underbeam.
Fig. 6 shows the retraction mechanism when the lower beam is lowered in a preferred embodiment of the present utility model.
The utility model comprises the following steps:
The tape cassette 12 is set in the tape cassette housing mechanism 10
The shaft 14 drives a brake 16
Box 22 runner 24
Base 26 connecting shaft 28
First cone 30 and second cone 32
Connecting rope 34 spring motor 36
Large diameter end 38 and small diameter end 40
First roller 42 of rope groove 41
Elastic member 46 of second roller 44
Cover sheet 48
The prior art:
Upper beam 2 of curtain 1 without pull rope
Lower beam 3 blade 4
Tape 5
Detailed Description
The following description of a preferred embodiment of the present utility model will be given with reference to the accompanying drawings, in which:
referring to fig. 1 and 2, a retraction mechanism 10 of a cordless window curtain according to a preferred embodiment of the present utility model includes an upper beam 2 and a lower beam 3 in parallel, a plurality of blades 4 interposed between the upper beam 2 and the lower beam 3 through connection of two retraction belts 5, the retraction mechanism 10 being connected with the two retraction belts 5 for controlling retraction of the two retraction belts 5 such that the lower beam 3 can be pulled up or down, and a plurality of ladder belts; before the upper beam 2, the lower beam 3, the plurality of blades 4, the two retractable belts 5 and the retractable mechanism 10 are disclosed, the components of the conventional blind without pull ropes are not described herein, and the utility model is characterized in that:
The retraction mechanism 10 is disposed inside the lower beam 3 and includes two retraction cassettes 12, a rotating shaft 14, and a driving brake 16.
The two retractable belt boxes 12 are oppositely arranged at two ends of the interior of the lower beam 3 and are respectively connected with each retractable belt 5, the two retractable belts 5 are sheet metal belt bodies, but not limited to, the two retractable belt boxes 12 respectively comprise a box body 22 and a rotating wheel 24, each box body 22 is fixedly arranged at the top side of the interior of the lower beam 3, each rotating wheel 24 is respectively pivoted in each box body 22, each retractable belt 5 is respectively connected with each rotating wheel 24, and each retractable belt 5 can be rolled or released when each rotating wheel 24 rotates.
The rotating shaft 14 is connected in series with the rotating wheels 24 of the two retractable tape boxes 12, and when rotating, the rotating wheels 24 can be driven to synchronously roll or release the two retractable tapes 5 so as to enable the lower beam 3 to ascend or descend.
The driving brake device 16 is composed of a base 26, a connecting shaft 28, a first cone 30 and a second cone 32, a connecting rope 34 and a spring motor 36. The base 26 is fixed to the top side of the inside of the lower beam 3. The connecting shaft 28 is rotatably mounted to the base 26 and parallel to the rotational axis 14. The first cone 30 is pivoted to the base 26 by the shaft 14 penetrating through the shaft center, the second cone 32 is pivoted to the base 26 by the connecting shaft 28 penetrating through the shaft center and is parallel to the first cone 30, the first cone 30 and the second cone 32 have a large diameter end 38 and a small diameter end 40 respectively, the first cone 30 and the second cone 32 are staggered on the shaft 14 and the connecting shaft 28 in a manner that the large diameter end 38 and the small diameter end 40 are opposite, in addition, a rope groove 41 is spirally arranged on the surfaces of the first cone 30 and the second cone 32 respectively, and the first cone 30 can be driven to rotate when the shaft 14 rotates. One end of the connecting rope 34 is connected to the large diameter end 38 of the first cone 30, and the other end is wound up in the rope groove 42 and then extends from the small diameter end 40 to the large diameter end 38 of the second cone 32. The spring motor 38 has a first roller 42 and a second roller 44, an elastic member 46 and a cover plate 48, the first and second rollers 42, 44 are respectively sleeved on the rotating shaft 14 and the connecting shaft 28 and connected with one ends of the first and second cone barrels 30, 32 (one end of the first roller 42 is connected with the small diameter end 40 of the first cone barrel 30, one end of the second roller 44 is connected with the large diameter end 38 of the second cone barrel 32, the first roller 42 is not connected with the rotating shaft 14, the second roller 44 is connected with the connecting shaft 28), the two ends of the elastic member 46 are respectively connected with the first and second rollers 42, 44, so that elastic force at one end of the elastic member 46 can be transmitted to the first cone barrel 30 and the rotating shaft 14 through the first roller 42, elastic force at the other end of the elastic member 46 can be transmitted to the connecting shaft 28 and the second cone barrel 32 through the second roller 44, and the two ends of the elastic member 46 are respectively connected with the first and second rollers 42, 44 and the cover plate 48 are provided with the elastic members 46.
Therefore, the retraction mechanism 10 of the curtain without a pull rope of the utility model provides retraction power for the curtain by the elastic piece 46, each retraction belt box 12 provides retraction and release of the retraction belt 5, the rotating shaft 14 is connected with the axle center of the rotating wheel 24 of each retraction belt box 12 and the first cone-shaped cylinder 30 in series, so that the axle center of each rotating wheel 24, the first cone-shaped cylinder 30 and the rotating shaft 14 synchronously rotate, the height of the left end and the right end of the lower beam 3 can be kept consistent at any time, and the lower beam 3 can not incline due to being pulled down or pushed up.
Next, as shown in fig. 3 and 4, when the cordless window shade 1 is required to be retracted, all of the connecting cord 34 in the driving brake 16 is wound around the cord groove 42 of the first taper tube 30, and the other end is connected to the large diameter end 38 of the second taper tube 32. When the lower beam 3 is pushed to rise, the blades 4 are also driven to retract, at this time, the second roller 44 rotates under the spring force of the elastic member 46, synchronously drives the connecting shaft 28 and the second cone 32 to rotate, the second cone 32 can gradually unwind the connecting rope 34 from the first cone 30, further wind the connecting rope on the rope groove 41 of the second cone 32, and can drive the first cone 30 to rotate, synchronously drives the rotating wheel 24 and the rotating shaft 14 of each winding and unwinding tape box 12 to rotate, and finally, the rotating wheel 24 of each winding and unwinding tape box 12 winds up the winding and unwinding tape 5, so that the dragline-free curtain 1 can be retracted.
When the cordless window shade 1 needs to be deployed, as shown in fig. 5 and 6, the connecting cord 34 in the driving brake 16 is wound around the cord groove 41 of the second tapered tube 32, and the other end is connected to the large diameter end 38 of the first tapered tube 30. When the lower beam 3 is pulled down by hand, the retractable belts 5 are gradually pulled out from the retractable belt boxes 12, the blades 4 are also gradually unfolded, meanwhile, the rotating wheels 24 of the retractable belt boxes 12 are driven to rotate, the rotating shafts 14 and the first tapered drums 30 are driven to rotate synchronously, the connecting ropes 34 are driven to rotate the second tapered drums 32, the connecting ropes 34 are gradually released from the second tapered drums 32 and wound on the rope grooves 41 of the first tapered drums 30, the rotation of the second tapered drums 32 synchronously drives the connecting shafts 28 and the second rollers 44 to rotate so as to overcome the spring force of the elastic pieces 46, and the elastic pieces 46 are wound on the second rollers 44, so that the pull-rope-free curtain 1 can be pulled down.
In addition, when the user releases the lower beam 3 or no external force acts on the lower beam 3, the lower beam 3 tends to slide down or rise at this time, and the spring force of the elastic member 46 of the driving brake device 16 keeps the balance of forces, so as to ensure that the lower beam 3 cannot rise or fall:
When the lower beam 3 has a sliding trend, the first cone 30 can drive the second cone 32 to rotate, and at this time, the weight of each blade 4 added to the total weight of the lower beam 3 and the retraction jack 10 is smaller than the torque of the elastic member 46 on the second cone 32 through the connecting shaft 28 by the torque of the connecting rope 34 on the second cone 32, so as to prevent the lower beam 3 from sliding down. On the contrary, when the lower beam 3 has an ascending trend, the second cone 32 drives the first cone 30 to rotate, and at this time, the total weight of the lower beam 3 and the retracting mechanism 10 and the weight of each blade 4 are added, so that the torque of the rotating shaft 14 on the first cone 30 is greater than the torque of the elastic member 46 on the second cone 32 through the connecting rope 34, thereby preventing the lower beam 3 from ascending.
Accordingly, the taper design of the first and second tapered cylinders 30, 32 and the staggered arrangement of the large and small diameter ends 38, 40 are such that the moment (the radius of the connecting rope 34 at different positions of the first and second tapered cylinders 30, 32 changes, and the moment changes) is considered and effective, and the hand can leave the lower beam 3 or leave the lower beam 3 without external force, so that the lower beam 3 can stay at a desired position.
In addition, in order to avoid the excessive load of the rotation force of the elastic member 46, a unidirectional damping mechanism (not shown) may be added in the spring motor 38 to connect the second roller 44 of the spring motor 38, and the unidirectional damping mechanism, such as a spring and a clutch mechanism, is not limited, so as to urge the second cone 32 to rotate toward the first cone 30 when there is no external force or the curtain 1 tends to be unfolded due to the self weight of the curtain 1, but cannot overcome the rotation force and unidirectional damping force of the elastic member 46, so that the curtain 1 is in a balanced static state. When the lower beam 3 is pulled by hand, the revolving force and the unidirectional damping force of the elastic piece 46 are overcome, the curtain 1 can be unfolded smoothly, and after the curtain 1 is released, the curtain 1 is in a stop state immediately through the revolving force and the unidirectional damping force of the elastic piece 46, so that the problem that the bearing force of the lower beam 3 is far different from the bearing force of the lower beam 3 when the lower beam 3 is unfolded completely due to the fact that the curtain 1 is completely retracted can be solved better, and the lower beam cannot slide downwards due to the dead weight of the curtain.
In summary, the retraction mechanism for the curtain without a pull cord provided by the utility model can provide retraction force for the curtain by utilizing the elastic piece in the driving braking device through the cooperation of the retraction belt boxes, the rotating shaft and the driving braking device of the retraction mechanism in the lower beam, the retraction belt boxes provide retraction and release of the retraction belt, and the rotating shaft is connected with the axle center of the rotating wheel of each retraction belt box and the structure of the first cone-shaped cylinder in series, so that the axle center of each rotating wheel, the first cone-shaped cylinder and the rotating shaft can synchronously rotate, the height of the left end and the right end of the lower beam can be kept consistent at any time, and the lower beam can be positioned at a required position without pulling or applying force on the lower beam, thereby having practical value; the present utility model is, therefore, truly in accordance with the requirements of the patent application, and the application is hereby made.
The above description is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. A retraction mechanism of a curtain without a pull rope, which is characterized in that: the curtain without pull rope comprises an upper beam, a lower beam, a plurality of blades between the upper beam and the lower beam, and two retractable belts penetrating through the blades to connect the upper beam and the lower beam, wherein the retractable mechanism is arranged in the lower beam and comprises:
The plurality of winding and unwinding tape boxes are oppositely arranged in the lower beam and are respectively connected with each winding and unwinding tape, and each winding and unwinding tape can be wound or released;
The rotating shaft is rotatably arranged in the lower beam in an extending way and is connected with the two retractable belt boxes, and when the rotating shaft rotates, the two retractable belt boxes can be driven to synchronously roll or release the two retractable belts, so that the lower beam ascends or descends; and
The driving braking devices comprise a first cone-shaped cylinder, a second cone-shaped cylinder, a connecting rope and a spring motor, wherein the rotating shaft penetrates through the axle center of the first cone-shaped cylinder and can drive the first cone-shaped cylinder to rotate, the first cone-shaped cylinder and the second cone-shaped cylinder are erected in the lower beam in a staggered mode, one end of the connecting rope is connected to one end of the first cone-shaped cylinder, the other end of the connecting rope is connected to one end of the second cone-shaped cylinder in an extending mode after being wound, the spring motor is connected to one end of the first cone-shaped cylinder and one end of the second cone-shaped cylinder, and reverse elastic force can be applied to the first cone-shaped cylinder and the second cone-shaped cylinder to provide power for winding and unwinding the blades and lifting the lower beam.
2. The pull-cord less curtain retracting mechanism as claimed in claim 1, wherein: the two winding and unwinding belts are sheet-shaped belt bodies, the two winding and unwinding belt boxes respectively comprise a rotating wheel, and each winding and unwinding belt is connected with each rotating wheel.
3. The pull-cord less curtain retracting mechanism as claimed in claim 2, wherein: the two retractable tape boxes respectively comprise a box body, the two box bodies are fixedly arranged in the lower beam, and the rotating wheels are respectively arranged in the box bodies and are connected in series by the rotating shaft.
4. The pull-cord less curtain retracting mechanism as claimed in claim 1, wherein: the extending direction of the rotating shaft is parallel to the blades, the upper beam and the lower beam, and the axial directions of the first cone-shaped cylinder and the second cone-shaped cylinder are parallel to the opposite blades, the upper beam and the lower beam.
5. The pull-cord less curtain retracting mechanism as claimed in claim 4, wherein: the driving brake device further comprises a connecting shaft which can pass through the axle center of the second conical barrel in a rotating way and is parallel to the rotating shaft, the first conical barrel and the second conical barrel are erected in the lower beam and respectively comprise a large-diameter end and a small-diameter end, the first conical barrel and the second conical barrel are arranged in a mode that the large-diameter end and the small-diameter end are opposite, the surfaces of the first conical barrel and the second conical barrel are respectively provided with a rope groove in a spiral way, one end of the connecting rope is connected with the large-diameter end of the first conical barrel, and the other end of the connecting rope is wound on the rope groove and then extends from the small-diameter end to the large-diameter end of the second conical barrel.
6. The pull-cord less curtain retracting mechanism as claimed in claim 5, wherein: the spring motor comprises a first roller and a second roller, wherein the first roller and the second roller are respectively connected with one ends of the first cone-shaped cylinder and the second cone-shaped cylinder, and an elastic piece, the two ends of the elastic piece are connected with the first roller and the second roller and can apply elastic force for enabling the first roller and the second roller to reversely rotate.
7. The pull-cord less curtain retracting mechanism as claimed in claim 6, wherein: the elastic member is a vortex spring piece with opposite winding directions at both ends.
8. The pull-cord less curtain retracting mechanism as claimed in claim 7, wherein: the rotating shaft is connected with the first cone-shaped cylinder, the first roller is sleeved on the rotating shaft without being linked with the rotating shaft, the elastic force at one end of the elastic piece is transmitted to the first cone-shaped cylinder and the rotating shaft through the first roller, the second roller is linked with the connecting shaft, and the elastic force at the other end of the elastic piece is transmitted to the connecting shaft and the second cone-shaped cylinder through the second roller.
9. The pull-cord less curtain retracting mechanism as claimed in claim 8, wherein: the driving braking device further comprises a base, the base is fixedly arranged on the top side of the inside of the lower beam, and the first cone-shaped cylinder, the second cone-shaped cylinder, the spring motor, the connecting shaft and the rotating shaft are erected on the base.
10. The pull-cord less curtain retracting mechanism as claimed in claim 9, wherein: the spring motor further includes a cover plate, which is disposed on the base to cover the first and second rollers and the elastic member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW112206845U TWM650686U (en) | 2023-07-03 | 2023-07-03 | Retracting mechanism for cordless curtain |
| TW112206845 | 2023-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221322222U true CN221322222U (en) | 2024-07-12 |
Family
ID=90456164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322047928.2U Active CN221322222U (en) | 2023-07-03 | 2023-08-01 | Retracting mechanism of curtain without pull rope |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN221322222U (en) |
| TW (1) | TWM650686U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI848759B (en) * | 2023-07-03 | 2024-07-11 | 麗窗企業股份有限公司 | No-string curtain retraction mechanism |
-
2023
- 2023-07-03 TW TW112206845U patent/TWM650686U/en unknown
- 2023-08-01 CN CN202322047928.2U patent/CN221322222U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWM650686U (en) | 2024-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210140231A1 (en) | Cordless Retractable Roller Shade for Window Coverings | |
| US6571853B1 (en) | Cordless blind having variable resistance to movement | |
| CN221322222U (en) | Retracting mechanism of curtain without pull rope | |
| WO2018166467A1 (en) | Vertical sliding window | |
| CN101349139A (en) | Curtain capable of automatically rising | |
| US11492846B2 (en) | Window blind assembly having transmission assist structure | |
| US10125541B2 (en) | Winding mechanism, top rail assembly and window blind | |
| US20140352895A1 (en) | Cord-Winding Assembly of a window blind | |
| TWI521133B (en) | Adjustable counterbalance system for roller doors | |
| CN206513281U (en) | A kind of drive retainer mechanism of Cordless curtain | |
| CN119244132A (en) | Retractable mechanism for cordless curtains | |
| JP3542739B2 (en) | Lifting device for shielding material | |
| US20190225456A1 (en) | Cable drum construction for multiple, horizontal, articulating panel door assembly | |
| TWM653079U (en) | One-way damping mechanism in the motor of cordless curtains | |
| CN118289626A (en) | A rigid-flexible combined posture-adjustable hanger | |
| CN218707419U (en) | Traffic transportation loading and unloading equipment | |
| CN209228294U (en) | Transmission mechanism, power box and curtain | |
| CN201269035Y (en) | Electric self-balancing door curtain | |
| JP4825462B2 (en) | Shielding material elevating method and shielding material elevating device for solar radiation shielding device | |
| CN220955393U (en) | Novel self-balancing lifting curtain | |
| CN210029847U (en) | Lifting structure and lifting system | |
| CN217051434U (en) | Winch rope winding and unwinding auxiliary device | |
| CN223136024U (en) | Pull rope-free curtain and retraction mechanism thereof | |
| CN118850326B (en) | Logistics unmanned aerial vehicle | |
| CN218894595U (en) | Hollow magnetic control shutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |