TW202400887A - Curtain including an upper rail, a shield, a rolling device and a one-way damper - Google Patents

Abstract

The present invention provides a curtain. The curtain includes an upper rail, a shield, a rolling device and a one-way damper. The upper rail has an accommodating space. A reel core and at least one reel are installed in the accommodating space. The reel core can rotate and drive each reel to rotate. The reel is wound with a reel string. The shield is arranged below the upper rail. The reel string of the reel is connected to the shield. The shield can change a shielding position according to a length of the reel string. The rolling device is configured to drive the reel core in a clutch manner, and drive the reel core to rotate along a pulling direction. The one-way damper is configured to work with the reel core. The one-way damper will generate a damping force when the reel core rotates in a release direction. The shield can fall freely when being released through the rolling device and generate a slow falling effect through the one-way damper, thereby reducing a release speed.

Description

Curtain

The present invention relates to a curtain. Specifically, it refers to a curtain that can be raised in one direction and slowly lowered in the opposite direction.

Conventional curtains are usually provided with an upper rail, a lower rail, a shield (curtain or blade) and a rolling device. The upper rail is fixed at a fixed position, and a curtain is installed between the lower rail and the upper rail. The shield; the retracting device is arranged on the upper rail, and can be rolled to drive the shield to rise and fall to control the position of the shield, thereby adjusting lighting and light.

When conventional curtains are rotated through a retracting device to adjust the height of the covering, the user is required to hold and roll the curtains with their hands to retract and release, which requires a lot of effort, especially when releasing the covering. Since the user's own weight falls from a higher position, the release process of the cover is too fast due to gravity, and it is difficult for the user to control the speed of the cover falling.

The purpose of the present invention is to provide a curtain that generates a clutch-operable rolling action for the shield; so that the shield can be rolled in one direction when rolled up, and can be released through the dead weight of the shield when released; Can form a slow down effect.

In order to achieve the above object, the present invention provides a curtain, which includes: An upper rail has an accommodating space, and a reel and several reels are arranged in the accommodating space. The reel can rotate and drive the reels to rotate, and a reel is wound on the reels; A shield is provided below the upper rail, and the reels of the reels are connected to the shield. The shield can change its lifting position according to the length of the reel; A rolling device has a pull cord part, a clutch unit and a combining part; the pull cord part is provided with a pull cord, and the pull cord can rotate the clutch unit to produce a rotation in the pulling direction and the releasing direction; when the clutch is When the unit is in the pulling direction, it will engage with the coupling part, causing the coupling part and the clutch unit to rotate in the same pulling direction; when the clutch unit is in the releasing direction, the clutch unit will not move together with the coupling part, causing the coupling part to rotate in the same direction as the clutch unit. The joint part rotates freely; the joint part is combined with the reel of the upper rail, so that the joint part can rotate synchronously with the reel; A one-way damper is overlapped with the reel of the upper rail. The one-way damper will generate a damping force when the reel rotates in the release direction, which can slow down the rotation speed of the reel in the release direction and the speed of the cover release.

Thereby, the rolling device can drive the reel to rotate in the pulling direction to pull up the shield, and the reel will fall freely in the releasing direction, and the damping force of the one-way damper can slow down the rotation of the reel and The speed at which the cover falls.

Preferably, the cable portion of the rolling device is provided with a drive shaft connected to the clutch unit, and at least one arc groove is recessed on the outer circumference of the drive shaft; the clutch unit is provided with a joint portion, and the end surface of the joint portion A coupling tooth is provided, a through hole is provided in the center of the coupling portion, at least one guide block is provided inside the through hole, and each guide block is slidably disposed in each arc groove; the coupling portion is provided with a coupling tooth and a coupling shaft ; When the pull cord portion rotates in the releasing direction, the joint portion will be moved away from the coupling portion and the engaging teeth will not engage the coupling teeth; when the pull cord portion rotates in the pulling direction, the joint portion will move toward The coupling tooth moves in a direction close to the coupling part and engages the coupling tooth, so that the clutch unit can be driven by the wire pull part and rotate the coupling part.

Preferably, a driving gear is provided on the reel of the upper rail, and a driven gear is provided on the one-way damper to mesh with the driving gear; when the driving gear rotates in the release direction, the driven gear will be affected by the one-way damper. function to reduce the speed of the driving gear.

In the curtain clutch mechanism of the present invention, the rolling device can produce a clutch rolling action, so that the joint portion can drive the reel to rotate in the pulling direction, thereby forming a function of rolling up the shield; when the rolling device When the device is in the release direction, the clutch unit will disengage from the joint part, allowing the joint part to rotate freely. At the same time, the one-way damper can generate a damping force when the reel rotates in the release direction, allowing the reel to rotate freely. The speed of rotation and release of the cover can be reduced.

Referring to Figures 1 to 7, the present invention provides a curtain, which includes:

An upper rail 10, please refer to Figures 1 and 2, has an accommodation space 11, and a reel 12 and several reels 13 are arranged in the accommodation space 11, and these reels 13 are fixed in the accommodation space 11 Inside, the reel 12 is threaded through the reels 13 to drive the reels 13 to rotate synchronously. A reel 131 is wound around the reels 13; in addition, a pivot is provided on each of the reels 13. Ladder belts 14, these ladder belts 14 will rotate due to the rotation of the reels 13, and a ladder belt 141 is ringed on the ladder belts 14, and the ladder belts 141 will follow the ladder belts 14 Rotate and rotate. In addition, a stop block 142 is protruding from the outside of each ladder conveyor 14. The stop block 142 will be resisted by the side of the upper rail 10 and limited, so that the ladder conveyor 14 can only It can rotate at a predetermined angle; in addition, a driving gear 121 is provided at a predetermined position on the reel 12 .

A shield 20 is provided below the upper rail 10. The shield 20 is a louvered blind 21. The louvered blind 21 is made up of several stacked blades 211. The reels 131 of the reels 13 are connected to the The blinds 21 can drive the blades 211 up or down through the winding wires 131, so that the curtain 20 can change the lifting position and adjust the height according to the length of the winding wires 131; at the same time, the ladder straps 14 are matched with the blinds When the curtain 21 is used, the ladder belts 141 are arranged between the blades 211. When the ladder belts 141 rotate, the blades 211 will also relatively rotate at a predetermined angle. If a whole piece of curtain fabric is used or the blade angle does not need to be adjusted, there is no need to use the ladder belt device 14.

A rolling device 30, please refer to Figures 3 and 4, is composed of a pull cord portion 31, a clutch unit 32 and a coupling portion 33; the pull cord portion 31 is provided with a pull cord 311 in a loop. For the user to pull, the pull cord part 31 can be pulled by the pull cord 311 to rotate in a pulling direction and a release direction. A drive shaft 312 is provided at the end of the pull cord part 31, and the drive shaft 312 can follow the pull cord. 311 is driven to rotate, and the drive shaft 312 is provided with two arc grooves 313; the pull cord portion 31 can be provided with a deceleration mechanism such as a planetary gear between the pull cord 311 and the drive shaft 312, so that the user can Effortless operation;

The clutch unit 32 is provided with an engaging portion 321. The front end surface of the engaging portion 321 is provided with engaging teeth 3211. A through hole 3212 is provided in the center of the engaging portion 321. The through hole 3212 is sleeved on the drive shaft 312. The through hole Two protruding guide blocks 3213 are provided on the peripheral wall of 3212 at equal intervals relative to the two arc grooves 313. The pull rope 311 can drive the driving shaft 312 to rotate and simultaneously move the joint portion 321 to remove the joint portion 321. In addition to producing a rotational movement, the two guide blocks 3213 can also cause the joint portion 321 to produce an axial limiting movement. Two limiting blocks 3214 are protruding from the outside of the joint portion 321; the clutch unit 32 is further provided with a Please refer to Figure 5 for the base 322 and a limiting cover 324. The base 322 has a through hole 3221 in the center. The driving shaft 312 of the cable portion 31 passes through the through hole 3221 and is then sleeved with the joint portion 321. , the base 322 has a round convex portion 3222 protruding from the side facing the joint portion 321. An elastic element 323 is elastically mounted on the round convex portion 3222. One end of the elastic element 323 has a pulling rod 3231; the limiting cover 324 It is sleeved on the base 322, and a pull hole 3241 is provided on the side of the limit cover 324. When the limit cover 324 is sleeved on the base 322, the pull hole 3241 can accommodate the When the limit cover 324 rotates in the release direction of the pulling rod 3231 of the elastic element 323, the pulling hole 3241 will pull the pulling rod 3231, so that the elastic element 323 is tightened to engage with the round convex Resistance is formed on the part 3222; when the limit cover 324 rotates in the pulling direction, the pull hole 3241 will pull the pull rod 3231, so that the elastic element 323 is separated from the round convex part 3222 and can rotate freely; A limit hole 3242 is provided in the center of the limit cover 324, and a limit groove 3243 is provided on both sides of the limit hole 3242. The joint portion 321 is sleeved in the limit hole 3242, and the two limit holes 3242 are arranged in the center of the limit cover 324. The bit block 3214 is disposed in the limiting groove 3243 to synchronize the rotation direction of the joint part 321 with the limit cover 324; when the clutch unit 32 is in the pulling direction, the joint part 321 will move away from the pull wire part 31 when the clutch unit 32 rotates in the release direction, the limiting cover 324 will be acted upon by the elastic element 323 to form a braking effect, so that the joint part 321 cannot rotate, thereby causing the guide block 3213 Along with the position change of the arc groove 313, an axial displacement is generated, and the guide block 3213 moves toward the end of the arc groove 313 (close to the direction of the wire pulling portion 31), so that the joint portion 321 can quickly move toward the wire pulling portion 31. near;

The coupling portion 33 has a coupling tooth 331 and a coupling shaft 332. The coupling tooth 331 can engage with the coupling teeth 3211 of the coupling portion 321 and be driven by the coupling portion 32 to produce a rotation in the pulling direction; when the coupling portion 331 is driven by the coupling portion 32, it can rotate in a pulling direction; When the clutch unit 32 rotates in the pulling direction, the joint portion 321 will move toward the joint portion 33 so that the joint teeth 3211 mesh with the joint teeth 331, so that the joint portion 33 can move together with the joint portion 321, so that the joint portion 33 can move together with the joint portion 321. The coupling portion 33 rotates in the same pulling direction as the clutch unit 32; when the clutch unit 32 is in the release direction, the coupling portion 321 will move away from the coupling portion 33, causing the coupling teeth 3211 to disengage from the coupling teeth 331. The coupling part 33 cannot be driven by the clutch unit 32, so that the coupling part 33 can rotate freely; because the coupling shaft 332 of the coupling part 33 is coupled with the reel 12 of the upper rail 10, the coupling part 33 can rotate with the reel. 12 rotate synchronously; an outer cover 34 is arranged outside the joint part 33, and the outer cover 34 is arranged on the outside of the limit cover 324 to form a force, which can prevent the limit cover 324 from being detached. The center of the outer cover 34 A set of holes 341 is provided, and the coupling shaft 332 of the coupling portion 33 passes out of the set hole 341 and is connected to the reel 12. A bearing 342 is provided in the set hole 341, and the coupling shaft 332 is inserted into the set hole 341. In the bearing 342, the coupling shaft 332 can rotate easily.

A one-way damper 40 is provided near the reel 12. Please refer to Figures 6 and 7. A driven gear 41 is provided at the front end of the one-way damper 40 to mesh with the driving gear 121 of the reel 12 of the upper rail 10. The one-way damper 40 will generate a damping force when the reel 12 rotates in the release direction.

The base body 50 is arranged in the accommodation space 11 of the upper rail 10. The one-way damper 40 is fixed in the base body 50. An upper cover 51 is provided on the base body 50. The upper cover 51 is provided with a connection hole. 511, the connecting hole 511 is for the reel 12 to pass through and limit.

Please refer to Figure 1, Figure 4 and Figure 8. When the user wants to pull up the shield 20, the user can pull the rolling device 30 and pull the pull cord 311 to rotate in the pulling direction, so that the pull cord 311 rotates in the pulling direction. The wire portion 31 will rotate in the pulling direction, and the wire pulling portion 31 can drive the driving shaft 312 to rotate, and the joint portion 321 provided on the driving shaft 312 will also rotate in the pulling direction, and make the joint portion 321 move in the coupling direction. Pushing in the direction of the part 33, the engaging teeth 3211 can engage with the combining teeth 331, so that the combining teeth 331 can be rotated to drive the combining shaft 332 and the reel 12 to rotate in the pulling direction. At the same time, the engaging parts 321 will synchronize When the limit cover 324 is driven to rotate, the elastic element 323 will be brought to the loosening direction without restricting the rotation of the limit cover 324; when the reel 12 rotates in the pulling direction, the reels 13 will be retracted. The winding wires 131 can also pull the venetian blinds 21 to be rolled up, so that the blades 211 are gradually collected and concentrated. Please refer to Figure 9. When the winding rollers 13 rotate, they will also drive the venetian blinds 21 to be rolled up. The ladder belt 14 rotates slightly in the retracting direction, causing the ladder belts 141 to drive the blades 211 to rotate at a predetermined angle, and when the stop blocks 142 on the ladder belt 14 rotate to abut against the upper rail 10 side, the ladder belts 14 will not continue to rotate, and the ladder belts 141 will not continue to rotate. At this time, the driving gear 121 of the reel 12 will drive the driven gear 41 to rotate, and the single Rotation of the damper 40 in the pulling direction does not generate a damping force.

In addition, please refer to FIGS. 4 and 5 . When the pull cord 131 of the pull cord part 31 is pulled in the release direction, the driving shaft 312 will drive the joint part 321 to rotate in the release direction, and the joint part 321 will also drive the joint part 321 to rotate in the release direction. The limit cover 324 rotates in the release direction. At this time, the pull hole 3241 of the limit cover 324 will drive the elastic element 323 to tighten to form a stopping effect, so that the limit cover 324 stops rotating. At this time, The joint portion 321 is still driven by the drive shaft 312 and moves along the axial direction of the drive shaft 312 toward the wire pulling portion 31 , so that the joint portion 321 moves toward the wire pulling portion 31 , that is, away from the wire pulling portion 31 . When the coupling part 33 moves in one direction, the coupling teeth 331 of the coupling part 33 cannot be engaged by the coupling teeth 3211. At this time, the coupling teeth 331 will become free to rotate, and due to the weight of the shield 20 itself, The resulting gravity effect will cause the reels 131 to be pulled in the release direction, that is, the direction of releasing the blades 211 of the venetian blind 21. At this time, the reel 13 will also drive the ladder belt 14 in the release direction. When the stop block 142 blocks the upper rail 10, the ladder belts 14 will stop rotating, so that the ladder belts 141 can rotate at a predetermined angle in the direction opposite to the pulling direction. When the reel When 12 rotates in the release direction, the driving gear 121 rotates in conjunction with the passive gear 41, and the passive gear 41 drives the one-way damper 40, causing the one-way damper 40 to generate a damping force in the release direction. The damping force The reel 12 can generate resistance when rotating, and the rotation speed of the reel 12 can be reduced due to the damping force, so that the falling speed of the shield 20 can be affected by the damping force and fall slowly.

After landing at the predetermined position, pull the pull rope 311 to rotate in the pulling direction, so that the driving shaft 312 can drive the joint part 321 to move closer to the joint part 33, so that the joint teeth 3211 can mesh with the joint teeth 331. The coupling teeth 331 can be engaged by the coupling teeth 3211 to form resistance, which can fix the position of the reel 12, the reel 13 will not be able to move, and the shield 20 will not continue to be released downward, but can stay at a predetermined position. location.

The foregoing embodiments are only for illustrating the technical features of the present invention and not for limiting it. All structural designs equivalent to the present invention should fall within the scope of the present invention. The curtain provided by the present invention is a first-of-its-kind structure in this technical field and has progressive effects. An application is filed in accordance with the law.

10: On track 11: Accommodation space 12:Scroll 121: Driving gear 13:Reel 131: Coil 14: Ladder strap 141: Ladder belt 142:stop block 20:curtains 21: blinds 211:Blade 30:scrolling device 31:Threading part 311: Pull rope 312: Drive shaft 313: Arc groove 32:Clutch unit 321:Joint 3211: Engagement teeth 3212:Through hole 3213: Guide block 3214:Limit block 322:Pedestal 3221:Perforation 3222: Round convex part 323: Elastic element 3231: Toggle lever 324:Limit cover 3241: Toggle hole 3242: Limit hole 3243:Limit slot 33:Joint 331: Combination teeth 332: Combined axis 34: Outer cover 341:Treat hole 342:Bearing 40: One-way damper 41: Passive gear 50: base body 51: Upper cover 511: Connector

In order to further understand the purpose, characteristics and achieved effects of the present invention, a preferred embodiment of the present invention is exemplified below and described in detail with the accompanying drawings: Figure 1 is an overall three-dimensional appearance view of a curtain according to a preferred embodiment of the present invention. Figure 2 is a three-dimensional appearance view of the combined position of the upper rail and the rolling device according to a preferred embodiment of the present invention. Figure 3 is an exploded perspective view of a scrolling device according to a preferred embodiment of the present invention. Figure 4 is a schematic cross-sectional view of the scrolling device in the axial direction of a preferred embodiment of the present invention, and the joint part and the joint part are in a separated state. Figure 5 is a schematic cross-sectional view of the combination position of the elastic element and the limiting cover according to a preferred embodiment of the present invention. Figure 6 is a schematic cross-sectional view of the one-way damper and the base in the axial direction of a preferred embodiment of the present invention. Figure 7 is a three-dimensional appearance view of the one-way damper and the base according to a preferred embodiment of the present invention. Figure 8 is the same as Figure 4, but the joint portion and the joint portion are in an engaged state. Figure 9 is a top view of the upper rail according to a preferred embodiment of the present invention.

30:scrolling device

31:Threading part

311: Pull rope

312:Drive shaft

313: Arc groove

32:Clutch unit

321:Joint

3211: Engagement teeth

3212:Through hole

3213: Guide block

3214:Limit block

322:Pedestal

3221:Perforation

3222: Round convex part

323: Elastic element

3231: Toggle lever

324:Limit cover

3241: Toggle hole

3242: Limit hole

3243:Limit slot

33:Joint

331: Combination teeth

332: Combined axis

34: Outer cover

341:Treat hole

342:Bearing

Claims (10)

A curtain including: An upper rail has an accommodating space, and a reel and several reels are arranged in the accommodating space. The reel can rotate synchronously with each reel, and a reel is wound on each reel; A shield is provided below the upper rail, and the reel of the reel is connected to the shield. The shield can change its lifting position according to the length of the reel; A rolling device has a pull cord part, a clutch unit and a combining part; the pull cord part is provided with a pull cord, and the pull cord can rotate the clutch unit to produce a rotation in the pulling direction and the releasing direction; when the clutch is When the unit is in the pulling direction, it will combine with the coupling part, causing the coupling part and the clutch unit to rotate in the same pulling direction; when the clutch unit is in the releasing direction, the clutch unit will not move together with the coupling part, causing the coupling part to rotate in the same direction. The joint part rotates in the release direction; the joint part is combined with the reel of the upper rail, so that the joint part can rotate synchronously with the reel; A one-way damper is installed in the upper rail and overlaps the reel of the upper rail. When the coupling part is disengaged from the clutch unit, the reel rotates in the release direction and the shield descends, and the one-way damper will move on the reel. When rotating in the release direction, a damping force is generated to reduce the rotation speed of the reel and the descending speed of the shield. The curtain as claimed in claim 1, wherein: the pull cord portion of the rolling device is provided with a drive shaft connected to the clutch unit, and at least one arc groove is recessed on the outer circumference of the drive shaft; the clutch unit is provided with an engagement part, the end surface of the joint part is provided with joint teeth, a through hole is provided in the center of the joint part, at least one guide block is provided inside the through hole, and each guide block is slidably installed in each arc groove; the joint part is provided with a Combining teeth and a combining shaft; when the wire pull part rotates in the releasing direction, the joint part will move away from the joint part and the joining teeth do not mesh with the joint teeth; when the wire pull part rotates in the pulling direction , the coupling part will move toward the coupling part and the coupling teeth engage with the coupling teeth, so that the clutch unit can be driven by the wire pull part and rotate the coupling part. The curtain as described in claim 2, wherein: the clutch unit of the rolling device further includes a base and a limiting cover; the center of the base is provided with a through hole, and the driving shaft of the pull cord portion passes through the The through hole is connected to the clutch unit, and a round convex portion is protruding on the base. An elastic element is provided on the round convex portion. The elastic element has a pulling rod; the limit cover is sleeved on the base. , a pull hole is provided on the side of the limit cover, which can elastically engage the pull rod of the elastic element. When the limit cover rotates in the release direction, the pull hole will pull the pull rod, causing the The elastic element is tightened on the round convex part; when the limit cover rotates in the pulling direction, the pull hole will pull the pull rod, causing the elastic element to loosen the round convex part; the limit cover has A limit hole is provided in the center, and the engaging teeth are sleeved in the limit hole, so that the rotation direction of the engaging teeth is synchronized with the limit cover. The curtain as claimed in claim 3, wherein: the joint part further includes an outer cover, the outer cover is provided outside the limiting cover, a set of holes is provided in the center of the outer cover, and the joint shaft of the joint part The tie goes out of the hole. The curtain as claimed in claim 4, wherein: a bearing is provided in the hole, and the coupling shaft of the coupling portion is pivoted in the bearing. The curtain according to claim 3, wherein: at least one limit groove is provided on the side of the limit hole of the limit cover, and at least one limit block is provided on the outside of the joint part; each of the limit blocks is provided on each of the limit positions. inside the tank. The curtain as claimed in claim 1, wherein: a driving gear is provided on the reel of the upper rail, and a driven gear is provided on the one-way damper to mesh with the driving gear; when the driving gear rotates in the release direction, the driven gear The one-way damper will reduce the speed of the driving gear. The curtain as described in claim 1 or 7, wherein: the one-way damper is arranged in a base body, and the base body is fixed on the upper rail; an upper cover is provided at the top of the base body, and a socket is recessed in the upper cover. hole; when the upper cover is installed on the base body, the reel is inserted into the connecting hole. The curtain as described in claim 1, which: further includes a plurality of ladder belts, and a ladder belt is arranged around the ladder belt; the shielding object is a blind, and the blind is made of several stacked blades. ; The ladder belt rings are arranged on the blinds and rotate at a predetermined angle to drive the blades to rotate at a predetermined angle. The curtain as described in claim 9, wherein: the ladder straps are pivoted on the reels and can rotate with the reels; and a stop block is provided on the ladder straps. The stop block will stop against the upper rail to stop the rotation of the ladder belt.

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