TW202405299A - Rolling-up and control device of roller blind assisting rotary moving portion to back to an original position through restoring a bounce of a pull-back spring to assist positioning after rolling-up - Google Patents

Abstract

A rolling-up and control device of a roller blind comprises a turntable component comprising a turntable, a pull-back spring, an exterior turntable, a shaft, and a clutch; and a brake component comprising a brake shaft cover provided for snapping the shaft, a brake spring passing through the outside of a side of the brake shaft cover, a compression spring stretching and retracting inside the brake shaft cover, a brake sleeve sleeved to the outside of a side of the brake shaft cover and provided for the compression spring to stretch and retract therein, and a shaft housing provided for a damper sleeve to sleeve therein and enabling the brake sleeve to snap in. Accordingly, by pulling another end of a pull rope to a short distance length to perform straight-line sliding relative to the clutch, the brake sleeve is pushed to be away from and clutch the sleeve housing so that the power at another end of the roller blind can drive the shaft housing to rotate to roll back the roller blind. By releasing another end of the pull rope, the compression spring is restored to push the brake sleeve back to and snap in the shaft housing such that the brake spring to perform braking, thereby assisting the positioning of the roller blind after rolling-up.

Description

Roller blind retraction control device

The invention relates to a roll-up control device, in particular to a roll-up control device for roller blinds.

There are currently several styles of curtain structures on the market. They are mainly installed on doors and windows of homes to achieve the functions of blocking sunlight and decoration. Depending on the needs of different consumers, general curtains 1 (as shown in Figure 1 (shown) is to use the zipper chain or drawstring 11 to rise or fall to control its winding and unfolding movements. However, the zipper chain or drawstring 11 of the curtain 1 is too long. If children use the zipper chain or drawstring 11 as a play Neck wrapping is quite dangerous and needs to be improved.

The main purpose of the present invention is to solve the problem that the existing zipper chain or drawstring of the curtain is too long, and it is very dangerous for children to use the zipper chain or drawstring to wrap around their necks as a play.

To achieve the above object, the present invention provides a roll-up control device for a roller blind. The roll-up control device includes a turntable assembly and a brake assembly, wherein the turntable assembly includes a turntable for fixing and surrounding one end of a pull cord. A pullback spring inserted into one side of the turntable, an outer turntable provided on the turntable for the other end of the pull cord to pass through, and a shaft that penetrates the outer turntable, the pullback spring and the turntable. , and a clutch embedded in the shaft and forming a rotational separation or return clutch with one side of the turntable, wherein the turntable includes a first disk body and a second disk body that are relatively connected, and a first disk body is connected to a clutch. The rotation part on the side, and a latch part opposite to the rotation part and provided on one side of the second plate body, the rotation part includes a protrusion with a first axis hole and a latch extending from the protrusion. At least one guide body extends outward on one side of the body. At least one socket corresponding to one side of the guide body is provided on one side of the protruding body. The socket is for one end of the pullback spring to be inserted. The guide body includes an automatic The protruding body has a guide bevel on one side and a protrusion extending from the top of the guide bevel. The latch portion includes a ring protrusion separated by a ring protrusion connected to the outside of the ring protrusion and for fixing one end of the pull cord. At least one locking space is located inside the annular convex body and has a first chamber with a plurality of resisting bodies, and is located inside the first chamber and is recessed from the inside of the protruding body and connected with the insertion A second chamber with interconnected holes, the second chamber is for the pull-back spring to be inserted, and the other end of the pull-back spring is located between the resisting bodies, the outer turntable includes a hole for the turntable to be placed accommodating space, and an outgoing portion from one end of the outer periphery of the outer turntable for the other end of the pull cord to extend through and abut against the outside; the shaft includes a convex cover body that covers the outer turntable; A fixed post extends from one side of the convex cover body, and a rod extends opposite to the side of the fixed post. The convex cover body is provided with at least one set of blocking bodies on the near outer periphery of the side opposite to the fixed post. The set of blocking bodies The body is for the other end of the pull-back spring to be inserted and locked. The rod portion includes a first rod body extending from one side of the convex cover body and penetrating into the interior of the pull-back spring, and a first rod body penetrating into the protruding body. A second rod body in the first shaft hole, and a third rod body passing out of the rotation part. The clutch includes a second shaft hole for the third rod body to penetrate, and at least one rod disposed on the clutch. The outer peripheral edge of one side is rotated by the turntable to produce a push rod portion that is pushed by the guide bevel of the rotation portion; the brake assembly includes a brake shaft cover for the shaft to be inserted into the buckle, and a penetrating A brake spring outside one side of the brake shaft cover, a compression spring telescopic in the brake shaft cover, a brake sleeve located outside one side of the brake shaft cover for the compression spring to telescope inside, and a borrow A damping ring is tightly engaged with the turntable and allows the brake sleeve to be locked into the rotating or unblocked shaft housing. The brake shaft cover includes a convex shaft with a first convex shaft and for the third rod body to be latched. Cover wall, a convex joint portion with a first opening extending from one end of the convex cover wall, and a third chamber formed in the convex joint portion extending outwardly with a second convex shaft inserted into the third rod body , wherein the protruding portion has a first protruding body, and a second protruding body connected to one end of the first protruding body and for the brake spring to be sleeved, and the bottom end of the third chamber is provided for one end of the compression spring is inserted and expands and contracts inside the third accommodation chamber. The space between the compression spring and the second convex shaft allows the third rod body of the shaft to penetrate. The brake sleeve includes a second opening and a sleeve. A fixing portion provided on the outer surface of the first protrusion of the protruding portion, a protruding rod extending from one end of the fixing portion and having a third opening, and a plurality of spaced apart protruding rods arranged on the outer periphery of the protruding rod and having a plurality of protruding rods in between. A first embedding rod in a first embedding groove, the outer periphery of the fixed part is provided with a channel for one end of the brake spring to penetrate and be locked, and is located inside the fixed part and connected with the second opening and the third A fourth chamber with three openings connected through it. The bottom end of the fourth chamber is for the other end of the compression spring to be inserted and expand and contract inside the fourth chamber. The fixed part has a connection with the second opening and the The third opening passes through the third shaft hole for the third rod body of the shaft to extend. A fifth chamber is provided inside the protruding rod and passes through the third opening and the second opening. The shaft housing includes A protruding stop portion assembled at one end of the turntable assembly and having a fourth opening, and an outer sleeve extending from one end of the protruding stop portion. The outer shaft sleeve includes a fifth opening for the brake sleeve to be inserted. The sixth chamber, and a plurality of second embedding rods spaced from the periphery of the sixth chamber and each having a second embedding groove for the first embedding rods to engage with each other; to drive the pull The other end of the rope is pulled to a short distance and slides linearly relative to the clutch, pushing the brake sleeve to clutch the shaft housing, so that the power from the other end of the roller blind can drive the shaft housing to rotate to wind up the roller blind. When the other end of the pull rope is relaxed, the compression spring recovers and pushes the brake sleeve back into the shaft housing, causing the brake spring to brake to assist the positioning of the roller blind after it is rolled up.

Furthermore, there is a connection body between the first disk body and the second disk body. The outer diameter of the connection body is smaller than the outer diameters of the first disk body and the second disk body. The first disk body and the second disk body are connected to each other. A space is formed between the second disks for the drawstring to be wound, and the connecting body is provided with a hole that communicates with the space and allows the other end of the drawstring to pass through. The locking space is two and is connected with the drawstring. The hole is provided on opposite sides of the center, and a channel is provided on the opposite inner side of the locking spaces, so that one end of the drawstring is formed as a binding end to be placed in one of the locking spaces, and is passed through the channel. And the hole penetrates and wraps around the space on the outer periphery of the connecting body.

Furthermore, the outer turntable also includes a convex portion extending from the inside of the accommodation space and placed in the first chamber, and a placement area opposite to one end of the convex portion and having a through hole. The area is for the convex cover body to cover, and the penetration part is a perforation; wherein, the set of blocking bodies is provided with two opposite convex bodies, and a position is between the two convex bodies and penetrates the outer peripheral edge of the convex cover body to The other end of the pullback spring is inserted into the locking slot, the third rod body has an inner sleeve hole, and the outer periphery of the third rod body is provided with at least one embedded strip connecting the second rod body, and from The end of the third rod body extends outward toward two opposite snap bodies; wherein, the inner periphery of the second shaft hole of the clutch is provided with at least one embedding groove corresponding to the embedding strip of the third rod body, The push rod part is in the shape of a convex strip, and the length of the push rod part protrudes from one side of the clutch, and a rotation space is formed between the push rod parts for each rotation part to be inserted.

Furthermore, the set of blocking bodies is composed of three groups, the fixed column is a square cylinder, and the outer diameters of the first rod body, the second rod body and the third rod body of the rod part are tapered.

Furthermore, the second convex shaft is inserted into the inner sleeve hole of the third rod body; wherein, a bottom end of the fourth chamber of the fixing part is provided for the second convex body of the convex connecting part to abut. The connected inner frame; wherein, a first contact portion is formed inside the protruding portion, and the first contact portion allows the damping ring to abut between the first contact portion and the rotation portion to form a tight seal. In this state, the fifth opening of the outer sleeve is connected to the first contact portion and the fourth opening. The outer sleeve also includes at least one limiting groove formed on the outer periphery of the outer sleeve.

Furthermore, the outer diameter of the outer sleeve is smaller than the outer diameter of the protruding portion, and the inner diameter of the sixth chamber of the outer sleeve is smaller than the inner diameter of the first contact portion.

Furthermore, the convex cover wall of the brake shaft cover is provided with two embedded holes opposite to each other on the outer periphery of the first convex shaft, and the two embedded holes are used for fastening the two buckle bodies of the third rod body.

Furthermore, the first convex shaft and the second convex shaft are hexagonal in shape, and the first convex shaft is provided with a tip hole for a plug pin to penetrate.

Furthermore, the outer diameter of the second protrusion is smaller than the outer diameter of the first protrusion.

Furthermore, the other end of the pull cord is externally connected with a convex cover body or a pull rod.

Through the foregoing implementation of the present invention, it has the following characteristics compared with the existing ones:

In the present invention, the brake spring becomes loose when the roller blind is unfolded. The brake spring can rotate on the outer periphery of the second protrusion and cause the brake sleeve to rotate accordingly. Then the shaft housing drives the brake sleeve and the brake shaft. The cover rotates together; on the contrary, the brake spring will become tight and stuck and will not rotate when the roller blind is retracted, so that the brake sleeve and the shaft housing will not rotate accordingly, and the other side of the pull rope is driven by hand. One end is pulled to a short distance, and the rotation part on one side of the turntable is pulled to rotate and the guide bevel is in contact with the push rod part of the clutch, pushing the clutch to slide linearly in the direction of the brake sleeve. And squeeze the compression spring, push the push rod part of the clutch until it stops with the convex stop without continuing to push out, the first engaging rods of the brake sleeve and the third engaging rods of the axle housing The two embedded rods are clutched, so that the power at the other end of the roller blind can drive the shaft shell to rotate, so as to retract the curtain piece of the roller blind, relax the other end of the pull cord, and the elastic force of the compressed compression spring is restored and restored. The first engaging rods of the brake sleeve are pushed to engage with the second engaging rods of the axle housing, causing the brake spring to brake, allowing the clutch to be pushed inward back to its original position with the rotating part. position, and the restoring force of the pull-back spring assists the rotating part to return to its original position to assist the positioning of the curtain after being rolled up.

The detailed description and technical content of the present invention are now described as follows with reference to the drawings:

Please refer to Figures 2 and 3. The present invention provides a rolling control device for a roller blind. The roller blind 2 It includes an upper rail 20, a retracting device 3 installed at one end of the upper rail 20 (the retracting device 3 is a conventional component and will not be described in detail here), and a retracting device 3 installed in the upper rail 20 and opposite to the upper rail 20. The retraction control device 4 at one end of the retraction device 3 is installed in the upper rail 20 and connected to an upper and lower limiting device 7 at one end of the retraction control device 4 (the upper and lower limiting devices 7 are conventional components, which will not be described in detail here), two fixed brackets 8 for the axial connection between the retracting device 3 and the retracting control device 4 and fixed on both sides above the window, and one spaced apart below the upper rail 20 The lower rail 23, and a curtain piece 9. The upper rail 20 is provided with a limiting protrusion 21. The limiting protrusion 21 is used for the assembly and fixation of the retracting device 3, the retracting control device 4 and the upper and lower limiting devices 7. The limiting protrusion 21 is There is an inlay groove 22 above 21, and the inlay groove 22 is for a starting end 91 of the curtain 9 to be engaged and wound on the outer surface of the upper rail 20, so that the curtain 9 is driven up and down by the upper rail 20. The surface of the lower rail 23 is provided with a channel 231, and the channel 231 is for a terminal end 92 of the curtain 9 to be inserted and fixed. In addition, the roller blind 2 will be equipped with an upper and lower limiting device 7, whereby one end of the upper and lower limiting device 7 is used to limit and control the lower rail 23 from being continued to be lowered and can be limited downward, or the upper and lower limiting device 7 can be used to limit and control the lower rail 23. The limiting device 7 is used to limit and control that the lower rail 23 will not continue to be pulled up and can be limited.

Referring back to Figure 2 and Figures 4 to 7, the retraction control device 4 includes a turntable assembly 5 and a brake assembly 6. The turntable assembly 5 includes an end 561 of a pull rope 56 to be fixed and encircled. Turntable 51, a pullback spring 52 placed in one side of the turntable 51, a set of outer turntable 53 provided on one side of the turntable 51 for the other end 562 of the pull cord 56 to pass through, and a set of pullback springs 52 inserted into the outer turntable. 53. The return spring 52 and the shaft 54 of the turntable 51, and a clutch 55 embedded in the shaft 54 and forming a rotational separation or return with one side of the turntable 51. The turntable 51 includes a first disk body 511 and a second disk body 512 that are relatively connected, a rotation part 513 connected to one side of the first disk body 511, and a rotation part 513 opposite to the rotation part 513 and arranged on The latch portion 514 on one side of the second plate body 512 . There is a connecting body 515 between the first plate body 511 and the second plate body 512. The outer diameter of the connecting body 515 is smaller than the outer diameters of the first plate body 511 and the second plate body 512, so that the A space 516 is formed between the first plate body 511 and the second plate body 512 for the drawstring 56 to be wound, and the connector 515 is provided with a space 516 connected to the space 516 for the other end 562 of the drawstring 56 to pass through. The hole 517. The rotation part 513 includes a protruding body 5131 with a first shaft hole 5133, and at least one guide body 5132 extending outward from one side of the protruding body 5131. At least one pair of guide bodies 5132 is provided on one side of the protruding body 5131. There should be an insertion hole 5134 on one side of the guide body 5132. The guide body 5132 includes a guide bevel 5135 extending from low to high from one side of the protruding body 5131, and a guide bevel 5135 extending from the top. Projection 5136. In one embodiment, there are three guide bodies 5132 distributed in a triangular shape. The latch portion 514 includes at least one locking space 5142 separated by an annular convex body 5141 and connected to the outside of the annular convex body 5141 and for fixing one end 561 of the drawstring 56 . It is located inside the annular convex body 5141 and has a plurality of locking spaces 5142 . A first accommodation chamber 5145 of the abutting body 5143, and a second accommodation chamber 5146 located inside the first accommodation chamber 5145. The locking space 5142 is on opposite sides with the hole 517 as the center in this embodiment. There are two, and a channel 5144 is respectively provided on the opposite inner side of the locking spaces 5142, for one end 561 of the drawstring 56 to be formed as a binding end and placed in one of the locking spaces 5142, and then through the channel 5144 and the hole 517 pass through and wrap around the space 516 on the outer periphery of the connecting body 515, and form a recessed inside the protruding body 5131 from the inside of the protruding body 5131 and communicate with the socket 5134 on the inside of the resisting bodies 5143. The second chamber 5146 (as shown in Figure 9).

One end 521 of the pull-back spring 52 is inserted into the socket 5134 so that the pull-back spring 52 is placed in the second chamber 5146. The other end 522 of the pull-back spring 52 is located between the resisting bodies 5143. .

The outer turntable 53 includes an accommodating space 531 for the turntable 51 to be placed, a protruding portion 532 extending from the interior of the accommodating space 531 and placed in the first accommodation chamber 5145, and a protruding portion opposite to the protruding portion 532. 532 has a placement area 533 with a through hole 534 at one end, and a penetration portion 535 from one end of the outer periphery of the outer rotating disk 53 for the other end 562 of the drawstring 56 to extend through. The protruding part 535 is a perforated hole for the other end 562 of the drawstring 56 to pass through and abut against the outside of the protruding part 535 . To explain in more detail, the length of the other end 562 of the drawstring 56 can be adjusted according to the height of use before being fixed, and the other end 562 of the drawstring 56 can be externally connected to a pull block or externally connected as shown in Figure 12 An elongated pull rod 563 is placed against the outside of the penetration portion 535 for the user's hand to hold, so as to prevent the pull cord 56 from being too long and causing the risk of wrapping around the neck.

The shaft 54 includes a convex cover body 541 covering the placement area 533 of the outer turntable 53, a fixing post 542 extending from one side of the convex cover body 541, and a fixing post 542 extending from one side opposite to the fixing post 542. The stem part 543. The convex cover body 541 is provided with at least one set of blocking bodies 544 on the proximal outer periphery of the side opposite to the fixing post 542. The set of blocking bodies 544 is provided with two opposing convex bodies 5441, and a position between the two convex bodies 5441. The other end 522 of the pull-back spring 52 is inserted into the locking slot 5442. The set of blocking bodies 544 is composed of three sets in this embodiment. The fixing column 542 is a square column in this embodiment. The rod portion 543 includes a first rod body 545 extending from one side of the convex cover body 541 and its outer diameter is tapered, penetrating into the interior of the pull-back spring 52 , and a first shaft hole 5133 penetrating into the protruding body 5131 . The second rod body 546, and a third rod body 547 that penetrates the rotation part 513 and has an inner sleeve hole 5470, the outer periphery of the third rod body 547 is provided with at least one connecting rod 546. The embedding strip 5471 and two opposite snap bodies 5472 extend outward from the end of the third rod body 547.

The clutch 55 includes a second shaft hole 551 for the third rod 547 to penetrate, and at least one guide located on one side of the outer periphery of the clutch 55 and rotated by the turntable 51 to generate a connection with the rotation part 513 . The beveled edge 5135 forms the pushing push rod portion 552 . The inner periphery of the second shaft hole 551 is provided with at least one embedding groove 553 corresponding to the embedding strip 5471 of the third rod body 547 . The push rod part 552 is in the shape of a convex strip in this embodiment, and the length of the push rod part 552 protrudes from one side of the clutch 55, and a space is formed between the push rod parts 552 for each rotation part. 513 placed in the rotation space 554.

Referring back to Figure 2 and Figures 4 to 7, the brake assembly 6 includes a brake shaft cover 61 for the shaft 54 to be inserted into the buckle, and a set of brakes located on the outer periphery of one side of the brake shaft cover 61. Spring 62, a compression spring 63 in one side of the brake shaft cover 61, a set of brake sleeves 64 located outside one side of the brake shaft cover 61 for the compression spring 63 to expand and contract inside, and a damper The ring 66 forms a tight fit with the rotating portion 513 and is inserted into the shaft housing 65 with the brake sleeve 64 to form an engaging rotation or disengagement locking shaft housing 65 . Wherein, the brake shaft cover 61 includes a convex cover wall 611 with a first convex shaft 612, a convex joint portion 613 extending from one end of the convex cover wall 611 and having a first opening 614, and a convex joint portion 613 extending from one end of the convex cover wall 611. A third accommodation chamber 615 is formed in 613 and is provided with a second protruding shaft 616 inserted into the inner sleeve hole 5470 of the third rod body 547 extending outward. The convex cover wall 611 is provided with two embedded holes 6111 opposite to each other on the outer periphery of the first convex shaft 612. The two embedded holes 6111 are used for fastening the two buckle bodies 5472 of the third rod body 547. The shapes of the first convex shaft 612 and the second convex shaft 616 are hexagonal in this embodiment. The first convex shaft 612 is provided with a tip hole 6121 for a plug pin 617 to penetrate into the limiting device 7 and be fixed on it. Inside the tip hole 6121. The protruding portion 613 has a first protruding body 6131 and a second protruding body 6132 connected to one end of the first protruding body 6131 and having an outer diameter smaller than the outer diameter of the first protruding body 6131 .

The brake spring 62 is sleeved on the outer periphery of the second protrusion 6132 .

One end 631 of the compression spring 63 is placed at the bottom of the third accommodation chamber 615 and expands and contracts inside the third accommodation chamber 615. The compression spring 63 and the second protruding shaft 616 are spaced apart from each other. The third rod body 547 of the shaft rod 54 penetrates.

Referring back to Figures 4 to 7, the brake sleeve 64 includes a fixing portion 641 having a second opening 640 and sleeved on the outer surface of the first protrusion 6131 of the protruding portion 613. 641 extends from one end to a protruding rod 642 with a third opening 643, and a plurality of first engaging rods 644 spaced apart from the outer periphery of the protruding rod 642. In one embodiment, there are eight first embedding rods 644 , and each of the first embedding rods 644 has a first embedding groove 6441 between them. The outer periphery of the fixing part 641 is provided with a channel 645 for one end 621 of the brake spring 62 to penetrate and be locked, and a channel 645 located inside the fixing part 641 and penetrating the second opening 640 and the third opening 643 . The fourth room is 646. The bottom end of the fourth chamber 646 is provided with an inner frame 647 and a third shaft hole 648. The inner frame 647 is for the second protrusion 6132 of the protruding portion 613 to abut, so that the compression spring 63 can The other end 632 is placed at the bottom of the fourth chamber 646 and telescopes inside the fourth chamber 646. The third shaft hole 648 passes through the second opening 640 and the third opening 643 for the shaft. The third rod body 547 of the rod 54 extends through. A fifth accommodation chamber 649 is provided inside the protruding rod 642 and communicates with the third opening 643 and the second opening 640 .

Referring back to Figures 4 to 8, the shaft housing 65 includes a protruding stop portion 651 assembled at one end of the turntable assembly 5 and having a fourth opening 652, and a protruding stop portion 651 extending from one end and having an outer diameter smaller than The outer diameter of the protruding portion 651 is the outer sleeve 653 . Among them, a first contact portion 654 is formed inside the protruding portion 651, and the first contact portion 654 allows the damping ring 66 to abut between the first contact portion 654 and the rotation portion 513 to form a tight seal. condition. The outer sleeve 653 includes a sixth chamber 655 formed from the inside of the first contact portion 654 with an inner diameter smaller than the inner diameter of the first contact portion 654 . A plurality of sixth chambers 655 are spaced apart from the inner periphery of the sixth chamber 655 . The second engaging rods 656 are mutually engaged with the first engaging rods 644, and a fifth engaging rod 656 is formed at the end of the sixth chamber 655 and communicates with the first contact portion 654 and the fourth opening 652. The opening 657 and at least one limiting groove 658 formed on the outer periphery of the outer sleeve 653 and corresponding to the limiting protrusion 21 of the upper rail 20 allows the upper rail 2 to drive the axle housing 65 to cooperate with the upper rail 2 The limiting protrusion 21 drives the brake sleeve 64 and the brake shaft cover 61 to rotate together. In one embodiment, eight second engaging rods 656 are provided in conjunction with each of the first engaging rods 644, and a gap is formed between each second engaging rod 656 for the first engaging rods 644. The second embedding groove 6561 in which the connecting rod 644 is inserted causes the brake sleeve 64 to be placed in the sixth chamber 655, and the first embedding rods 644 are respectively inserted into the second embedding grooves 6561 and the second embedding groove 6561. The second embedding rods 656 are respectively inserted into the first embedding grooves 6441 and engage with each other. When the curtain 9 is unfolded, the shaft housing 65 will rotate together with the brake sleeve 64. On the contrary, when the curtain 9 is unfolded, the shaft housing 65 will rotate along with the brake sleeve 64. When the curtain 9 is retracted, the shaft housing 65 will be braked by the brake sleeve 64 and will not rotate.

The damping ring 66 is placed on the outer periphery of the protrusion 5131 and forms a seal with the first contact portion 654 of the shaft housing 65 to control the rotation resistance of the curtain 9 and reduce the noise generated by the rotation friction of the curtain 9 .

Please refer to Figures 2, 3 and 4 again. The fixing brackets 8 are fixed on both sides above the window. The fixing brackets 8 respectively include a fixing body 81 installed on one of the two sides above the window and a vertical frame body 82 connected below the fixing bodies 81 . Each stand body 82 is respectively provided with a through hole 821 for the square column 31 of the retracting device 3 and the fixing column 542 at one end of the retracting control device 4 to penetrate and position.

Referring again to Figures 2 to 4 and 6, when the roller blind 2 is assembled, the curtain piece 9 is disposed between the upper rail 20 and the lower rail 23, and the retraction control device 4, the upper and lower limits are The positioning device 7 and the retracting device 3 are arranged in the upper rail 20, and the retracting device 3 and the upper and lower limiting devices 7 are driven by the upper rail 20 to idling, so that the square column at one end of the retracting device 3 31 is axially connected to the fixed bracket 8 at the left end, and the fixed column 542 at one end of the roll-up control device 4 is axially connected to and extends from the fixed bracket 8 at the right end to assemble the roller blind 2 .

Referring again to Figures 2, 4, 6 to 11, when the user wants to unfold the curtain piece 9 of the roller blind 2, he only needs to lower the lower rail 23 downwards by hand, and the upper rail 20 can be driven The axle housing 65 of the retracting device 3, the upper and lower limiting devices 7 and the retracting control device 4 rotates along the limiting protrusion 21, so that the axle housing 65 has the second second positions relative to the brake sleeve 64. The embedding rod 656 and the first embedding rods 644 are engaged with each other. At this time, the brake spring 62 will become loose, so that the brake spring 62 can rotate on the outer periphery of the second protrusion 6132 and the brake sleeve 64 Along with the rotation, the shaft housing 65 drives the brake sleeve 64 and the brake shaft cover 61 to rotate together. After the user unfolds the roller blind 2 to a predetermined position and releases it, the curtain 9 will droop downward to the predetermined position. On the contrary, when the curtain piece 9 of the roller blind 2 is retracted, the brake spring 62 will become tight and stuck and will not rotate, so that the brake sleeve 64 and the shaft housing 65 will also not rotate. , at this time, the shaft 54 does not move, and the other end 562 of the pull rope 56 is pulled to a short distance by hand, and when the rotation part 513 on one side of the turntable 51 is pulled to rotate, the other end of the pull-back spring 52 One end 522 is inserted into the slot 5442 of the two protrusions 5441 to restrict the positioning, and one end 521 of the pull-back spring 52 is inserted into the jack 5134 to loosen the pull-back spring 52 so that the pull rope 56 can pull the pull-back spring 52 . The turntable 51 rotates and causes the guide bevel 5135 to contact the push rod portion 552 of the clutch 55, pushing the clutch 55 to slide linearly toward the brake sleeve 64 and squeezing the compression spring 63 to push the clutch The push rod portion 552 of 55 is pushed out until it stops with the protrusion 5136 without further pushing out, allowing the first engaging rods 644 of the brake sleeve 64 to engage with the second engaging elements of the axle housing 65. The connecting rod 656 is clutched, so that the power of the retracting device 3 at its other end can drive the shaft housing 65 to rotate to retract the curtain piece 9 of the roller blind 2, and the other end 562 of the pull cord 56 is relaxed, and the compressed The elastic force of the compression spring 63 recovers and pushes the first engaging rods 644 of the brake sleeve 64 back to the second engaging rods 656 of the axle housing 65, causing the brake spring 62 to brake. The clutch 55 is pushed inward back to the original position of the rotating part 513, and the restoring force of the pull-back spring 52 is used to assist the rotating part 513 to return to the original position, so as to assist the curtain 9 to retract. positioning.

However, the foregoing are only preferred embodiments of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly, and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications to the shape, structure and features described in the scope of the present invention shall be included in the patent scope of the present invention.

(existing) 1: Curtains 11:Zip chain or drawstring (this invention) 2:Roller blind 20: On track 21: Limiting convex body 22: Groove 23: Lower track 231:Channel 3: Rewinding device 31: Square column 4: Rewind control device 5:Turntable component 51:Turntable 511:The first plate 512:Second plate body 513: Rotation part 5131:Protruding body 5132: Guide body 5133:First shaft hole 5134:jack 5135: Guide hypotenuse 5136:convex block 514:Catch Department 5141: Ring convex body 5142:Stuck space 5143:Resisting body 5144:Channel 5145:The first room 5146:Second room 515: Connector 516:Space 517:hole 52: Pull back spring 521:One end 522:The other end 53:Outer turntable 531: Accommodation space 532: convex pressure part 533:Placement area 534: Jack 535: Passing out part 54:Shaft 541:convex cover body 542:Fixed column 543:Rod 544:Blocking body 5441:convex body 5442:Card slot 545:First rod body 546:Second rod body 547:Third rod body 5470: Inner sleeve hole 5471: Inlay strip 5472: snap body 55:Clutch 551:Second shaft hole 552:Putter section 553: Groove 554:Rotation space 56: Pull rope 561:One end 562:The other end 563:Slender tie rod 6: Brake components 61:brake shaft cover 611:convex wall 6111: embedded hole 612:First convex shaft 6121: Tip hole 613:Protruding joint 6131:First convex body 6132:Second convex body 614:First opening 615:The third room 616:Second convex shaft 617:Insert tip 62:brake spring 621:One end 63:Compression spring 631:One end 632:The other end 64:brake cover 640:Second opening 641: Fixed department 642:Protruding rod 643: The third opening 644:First embedded rod 6441: First slot 645:Channel 646:The fourth room 647:Inner frame wall 648:Third axis hole 649:The fifth room 65:Axle housing 651:Protruding part 652:The fourth opening 653:Outer bushing 654: First contact part 655:The sixth room 656:Second embedded rod 6561: Second slot 657:The fifth opening 658:Limit slot 66: Damping ring 7: Upper and lower limit devices 8: Fixed bracket 81: Fixed body 82: Stand body 821:Through hole 9: curtain 91: Starting end 92:Terminal

Figure 1: is the front view of the existing roller shutter. Figure 2: is an exploded perspective view of the configuration of the rolling control device of the roller blind of the present invention. Figure 3: A combined perspective view of the roll-up control device configuration of the roller blind in Figure 2. Figure 4: is a three-dimensional exploded view of the rewinding control device of the present invention. Figure 5: is an exploded perspective view of the retraction control device in Figure 4 from another angle. Figure 6: is a cross-sectional view of the front configuration of the retraction control device in Figure 4. Figure 7: is a front view of the engagement between the shaft housing and the brake sleeve when the roller blind of the present invention is unfolded. Figure 8: It is a schematic diagram of the engagement and rotation of the shaft housing and the brake sleeve in Figure 7. Figure 9: is a side view of the configuration of the pullback spring, turntable and pull cord of the present invention. Figure 10: is a schematic front view of the push rod portion pushing the clutch to linearly slide when rolling up the roller blind according to the present invention. Figure 11: A schematic side view of the pullback spring becoming loose in Figure 10. Figure 12: is a front view of the external pull rod of the pull cord of the retraction control device of the present invention.

4: Rewind control device

5:Turntable component

51:Turntable

511:The first plate

512:Second plate body

513: Rotation part

5131:Protruding body

5132: Guide body

5133:First shaft hole

5134:jack

5135: Guide hypotenuse

5136:convex block

516:Space

52: Pull back spring

521:One end

53:Outer turntable

531: Accommodation space

532: convex pressure part

534:jack

535: Passing out part

54:Shaft

541:convex cover body

542:Fixed column

543:Rod

544:Blocking body

5441:convex body

5442:Card slot

545:First rod body

546:Second rod body

547:Third rod body

5470: Inner sleeve hole

5471: Inlay strip

5472: snap body

55:Clutch

551:Second shaft hole

552:Putter section

553: Groove

554:Rotation space

56: Pull rope

562:The other end

6: Brake components

61:brake shaft cover

611:convex wall

6111: embedded hole

612:First convex shaft

6121: Tip hole

613:Protruding joint

6131:First convex body

6132:Second convex body

616:Second convex shaft

617:Insert tip

62:brake spring

621:One end

63:Compression spring

631:One end

632:The other end

64:brake cover

640:Second opening

641: Fixed department

642:Protruding rod

644:First embedded rod

6441: First slot

645:Channel

646:The fourth room

647:Inner frame wall

65:Axle housing

651:Protruding part

653:Outer bushing

655:The sixth room

657:The fifth opening

658:Limit slot

66: Damping ring

Claims (10)

A roll-up control device for roller blinds. The roll-up control device includes a turntable component and a brake component, wherein The turntable assembly includes a turntable for fixing and surrounding one end of a pull cord, a pullback spring inserted into one side of the turntable, and an outer turntable located on the turntable for the other end of the pull cord to pass through. , a shaft that penetrates the outer turntable, the pullback spring and the turntable, and a clutch that is embedded in the shaft and forms a rotational separation or return with one side of the turntable, wherein the turntable includes a first relatively connected A disk body and a second disk body, a rotation part connected to one side of the first disk body, and a latch part opposite to the rotation part and provided on one side of the second disk body, the rotation part The part includes a protruding body with a first axis hole and at least one guide body extending outward from one side of the protruding body, and at least one socket corresponding to the side of the guide body is provided on one side of the protruding body. The socket is for inserting one end of the pullback spring. The guide body includes a guide bevel from one side of the protruding body and a protrusion extending from the top of the guide bevel. The latch portion includes a ring. The convex body separates at least one locking space connected to the outside of the ring convex body and for fixing one end of the drawstring, a first chamber located inside the ring convex body and having a plurality of resisting bodies, and located on the There is a second chamber inside the first chamber and recessed from the inside of the protruding body and communicated with the socket. The second chamber is for the pull-back spring to be placed, and the other end of the pull-back spring is located on the Between the abutting bodies, the outer turntable includes an accommodating space for the turntable to be placed, and an outgoing portion from one end of the outer periphery of the outer turntable for the other end of the pull cord to extend and abut against the outside. , the shaft includes a convex cover body that covers the outer turntable, a fixed column extending from one side of the convex cover body, and a rod extending opposite to the side of the fixed column. The convex cover body is opposite to the fixed column. At least one set of blocking bodies is provided near the outer periphery of one side of the fixed column. The set of blocking bodies is for the other end of the pull-back spring to be inserted and locked. The rod portion includes a rod extending from one side of the convex cover body and passing through the return A first rod body inside the tension spring, a second rod body penetrating the first axis hole of the protruding body, and a third rod body penetrating out of the rotating part, the clutch includes a rod for the third rod body. The second shaft hole through which the three-rod body penetrates, and at least one push rod portion disposed on the outer periphery of one side of the clutch and driven by the rotation of the turntable to form a push with the guide bevel of the rotation portion; The brake assembly includes a brake shaft cover for the shaft rod to be inserted into the buckle, a brake spring that penetrates the outside of one side of the brake shaft cover, a compression spring that expands and contracts in the brake shaft cover, and a set of one set on the brake shaft cover. A brake sleeve is provided on one side of the brake shaft cover for the compression spring to expand and contract inside, and a damping ring is tightly coupled with the turntable and is used for the brake sleeve to be locked into the rotation or unblocked shaft housing, wherein the brake The shaft cover includes a convex cover wall with a first convex shaft and for the third rod to be locked, a convex joint portion with a first opening extending from one end of the convex cover wall, and a convex joint portion formed from inside the convex joint portion. A third accommodation chamber extends outward and is provided with a second convex shaft inserted into the third rod body, wherein the convex joint portion has a first convex body, and an end connected to the first convex body for the brake spring to be sleeved The second convex body, the bottom end of the third chamber is for one end of the compression spring to be inserted and expands and contracts inside the third chamber, and the shaft is spaced between the compression spring and the second convex shaft. The third rod body is inserted into the brake sleeve, and the brake sleeve includes a fixing part having a second opening and being sleeved on the outer surface of the first protrusion of the convex joint part, and a third rod extending from one end of the fixing part and having a third opening. The open convex rod, and a plurality of first embedding rods arranged at intervals on the outer periphery of the convex rod and each having a first embedding groove, the outer periphery of the fixing part is provided with a hole for one end of the brake spring to penetrate and clamp. A fixed channel, and a fourth chamber located inside the fixed part and communicating with the second opening and the third opening. The bottom end of the fourth chamber is for the other end of the compression spring to be inserted and The fixing part is telescopic inside the fourth accommodation chamber and has a third shaft hole that passes through the second opening and the third opening and for the third rod body of the shaft rod to extend through. A third shaft hole is provided inside the protruding rod. The fifth chamber is connected with the third opening and the second opening. The shaft housing includes a protruding part assembled at one end of the turntable assembly and having a fourth opening, and an outer shaft extending from one end of the protruding part. sleeve, the outer shaft sleeve includes a sixth chamber with a fifth opening for the brake sleeve to be placed, and a plurality of spaced apart from the periphery of the sixth chamber and each having a space for the first inserts. The second embedding rod of the second embedding groove of the connecting rods engages with each other; to drive the other end of the pull rope to a short distance to slide linearly relative to the clutch, pushing the brake sleeve to clutch the axle housing, so that The power at the other end of the roller blind can drive the shaft housing to rotate to retract the roller blind. When the other end of the pull cord is relaxed, the compression spring recovers and pushes the brake sleeve back into the shaft housing, causing the brake The spring performs braking to assist the positioning of the roller blind after it is rolled up. The roll-up control device for roller blinds according to claim 1, wherein there is a connecting body between the first disk body and the second disk body, and the outer diameter of the connecting body is larger than that of the first disk body and the third disk body. The outer diameters of the two disks are small, a space for the drawstring to be wound is formed between the first disk and the second disk, and the connecting body is provided with a space that communicates with the space and allows the other end of the drawstring to pass through. There are two holes, and the locking spaces are two and are provided on opposite sides with the hole as the center. A channel is respectively provided on the opposite inner side of the locking spaces for one end of the drawstring to be formed as a binding end. It is placed in one of the locking spaces, passes through the channel and the hole, and is wound around the space on the outer periphery of the connecting body. The roll-up control device for roller blinds as claimed in claim 1, wherein the outer rotating disk further includes a convex portion extending from the inside of the accommodation space and placed in the first chamber, and a convex portion opposite to the convex portion. One end of the part has a placement area with a through hole, the placement area is for the convex cover body to cover, and the penetration part is a perforation; wherein, the set of blocking bodies is provided with two opposite convex bodies, and a position on the Between the two convex bodies and penetrating the outer periphery of the convex cover, the other end of the pull-back spring is inserted into the locking slot. The third rod body has an inner sleeve hole, and the outer periphery of the third rod is provided with at least An embedded strip connecting the second rod body, and two opposite buckle bodies extending outward from the end of the third rod body; wherein, the inner periphery of the second shaft hole of the clutch is provided with at least one connecting rod with the third rod body. The embedding strip of the rod body corresponds to the embedding groove. The push rod part is in the shape of a convex strip, and the length of the push rod part protrudes from one side of the clutch, and a gap is formed between the push rod parts. The rotation space in which each rotation part is placed. The roll-up control device for roller blinds according to claim 3, wherein the group of blocking bodies is three groups, the fixed column is a square column, and the first rod body, the second rod body and the second rod body of the rod part are The outer diameter of the third rod body is tapered. The roll-up control device for roller blinds according to claim 3, wherein the second convex shaft is inserted into the inner sleeve hole of the third rod body; wherein the bottom end of the fourth chamber of the fixing part An inner frame is provided for the second protrusion of the protruding portion to abut; wherein, a first abutting portion is formed inside the protruding portion, and the first abutting portion is for the damping ring to abut against the third A tight state is formed between a contact portion and the rotation portion. The fifth opening of the outer sleeve is connected to the first contact portion and the fourth opening. The outer sleeve also includes at least one formed on the The limit groove on the outer periphery of the outer shaft sleeve. The roll-up control device for roller blinds according to claim 5, wherein the outer diameter of the outer sleeve is smaller than the outer diameter of the protruding portion, and the inner diameter of the sixth chamber of the outer sleeve is smaller than the third One contact portion has a small inner diameter. The roll-up control device for roller blinds as claimed in claim 3, wherein the convex cover of the brake shaft cover is provided with two embedded holes opposite to each other on the outer periphery of the first convex shaft, and the two embedded holes are used for the third rod. The two buckle bodies of the body are fastened. The roll-up control device for roller blinds according to claim 1, wherein the first convex shaft and the second convex shaft are hexagonal in shape, and the first convex shaft is provided with a tip hole for a plug pin to penetrate. The roll-up control device for roller blinds according to claim 1, wherein the outer diameter of the second protrusion is smaller than the outer diameter of the first protrusion. The roll-up control device for roller blinds as claimed in claim 1, wherein the other end of the pull cord is externally connected to a convex cover or a pull rod.

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