Properly attached roller cover and fastening device thereof
The roller shutter system simplifies assembly by using a spring damper mechanism to facilitate easy mounting and fixation, addressing the cumbersome installation issues of existing systems.
Patent Information
- Application Number
- DE102020124337
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-09-17
- Publication Date
- 2025-12-11
- Estimated Expiration
- 2040-09-17
AI Technical Summary
Existing roller shutters have cumbersome and time-consuming assembly processes due to the need for sequential installation of components, making the assembly inconvenient.
A roller shutter system with a press-fit member reciprocated by a spring in a spring damper sleeve, allowing for easy mounting and fixation using fixing brackets at either end, facilitated by a spring damper mechanism that simplifies the assembly process.
The solution significantly reduces the assembly time and complexity by enabling quick and convenient installation of the roller shutter, improving the overall mounting efficiency.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
AREA OF INVENTION
[0001] The invention relates to a roller shutter and, in particular, to a suitably attached roller shutter and a fastening device thereof. BACKGROUND OF THE INVENTION
[0002] Curtains are frequently used for shading or decoration in homes and offices. However, most curtains are opened and closed by pulling drawstrings, which are only suitable for valances or curtains that open and close from the left and right ends, but cannot be applied to the type with a single roller blind. Therefore, the industry has developed a roller blind 1. Reference is made to Fig. 1, Fig. 2 and Fig. Figure 3, which shows a known roller blind. The roller blind 1 comprises a rail 11, a tube 12, and two mounting clips 13, each mounted on either side of the rail 11. The roller blind 1 also includes a retractable device 14 provided at a left end of the tube 12, and the retractable device 14 comprises an elastic element 141 and a fastening device 142. When the retractable device 14 is pulled, a blind fabric 16 moves and opens clockwise downwards; when the retractable device 14 is pulled again, the blind fabric 16 folds counterclockwise upwards; and when the blind fabric 16 is folded, it is slowly folded by a buffer device 15 located at a right end of the tube 12. However, the roller blind 1 has the following drawbacks during the assembly process.
[0003] When the rail 11 and the mounting brackets 13 installed at the two ends of the rail 11 are mounted above a window, regardless of whether the retractable device 14 with the elastic element 141 and the internally provided mounting device 142 is first installed at the left end of the tube 12 or whether the buffer device 15 is first installed at the right end of the tube 12, the other end of the tube 12 cannot be attached to the mounting bracket 13 at either of the two ends of the rail 11, since the mounting device 142 has a fixed inelastic area. Referring to a [reference to a document] in Fig. In the assembly method shown in Figure 2, the rail 11 is first attached above the window, and one of the mounting brackets 13 is installed and attached to one end of the rail 11. Then, the elastic element 141 and the mounting device 142 of the retractable device 14 and the buffer device 15 are each individually mounted to the left and right ends of the tube 12, respectively. The other mounting bracket 13 is then installed and attached to the other end of the rail 11. The assembly steps of the roller shutter 1 are cumbersome and time-consuming, which leads to inconveniences during the assembly of the entire roller shutter 1. Further prior art is shown in AU 2013 204 634 B2, US 2010 / 0200179 A1, US 8 839 841 B2, and DE 199 33124 A1.
[0004] Therefore, the existing roller shutter 1 exhibits the aforementioned disadvantages. Consequently, the development of an easy-to-assemble and secure roller shutter is a pressing problem that manufacturers must solve. SUMMARY OF THE INVENTION
[0005] A key objective of the invention is to eliminate the disadvantages of existing roller shutters and to implement a corresponding improvement to reduce the cumbersome and time-consuming assembly of the roller shutters, which currently results in inconvenient installation of the entire roller shutter assembly. The invention provides a roller shutter that can be easily attached and a device for its attachment. A press-fit locking element is moved back and forth by a spring within a spring-damping sleeve, and the press-fit locking element is pressed in such a way that the roller shutter can be mounted and secured by a bracket at either the left or right end, thus simplifying the installation process.
[0006] The problem is solved by a roller shutter according to claim 1 and a fastening device for a roller shutter according to claim 8. The dependent claims relate to further advantageous aspects of the invention. Compared with the prior art, the roller shutter according to the invention has the following features: the press-locking element is moved back and forth by the spring in the second chamber and the press-locking element is pressed so that the roller shutter is mounted and fastened by the fastening clips, thus enabling the roller shutter to be conveniently mounted. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a perspective exploded view of an existing roller shutter; Fig. Figure 2 is a perspective exploded view of the roller shutter. Fig. 1 before assembly; Fig. Figure 3 is a perspective view of the roller shutter. Fig. 1 after assembly; Fig. Figure 4 is a perspective exploded view of a roller shutter of the invention; Fig. Figure 5 is a perspective exploded view of a fastening device made of Fig. 4; Fig. Figure 6 is a perspective exploded view of the fastening device. Fig. 5 from a different angle; Fig. 7A is a combinatorial cross-sectional view of the fastening device made of Fig. 6; Fig. 7B is an enlarged schematic diagram of Fig. 7A at position 7B and shows a safety pin moving outwards; Fig. 8A is a schematic diagram of Fig. 4. First, arrange the fastening device and move the safety pin outwards; Fig. 8B is a schematic diagram of the pressing of a press-lock element of the fastening device. Fig. 8A, to retract inwards and assemble a wave assembly; Fig. 8C is an enlarged cross-sectional view of the press-lock element made of Fig. 8B at position 8C, which recedes inwards; Fig. 9A is a schematic diagram of Fig. 4, first arrange the shaft assembly and move the safety pin outwards; Fig. 9B is a schematic diagram of the pressing of the press-lock element of the fastening device. Fig. 9A, to retract inwards and assemble the fastening device; Fig. Figure 10 is a front view of the mounting configuration of the roller shutter of the invention; and Fig. Figure 11 is a schematic diagram of the opening and closing of an aperture of the roller aperture of the invention. DETAILED DESCRIPTION OF PREFERRED EXECUTION EXAMPLES
[0007] The detailed description and technical content of the invention are described below with reference to the drawings.
[0008] Reference is made to Fig. 4, Fig. 5, Fig. 6, Fig. 7A, Fig. 7B, Fig. 8A and Fig. 11. The invention provides a suitably fastened roller shutter and a fastening device thereof.
[0009] A roller shutter 2 comprises a sleeve tube 3, a shaft assembly 4 is installed in one end of the sleeve tube 3, a fastening device 5 is installed in another end of the sleeve tube 3 opposite the shaft assembly 4, a retractable device 6 is installed in the sleeve tube 3 and positioned between the shaft assembly 4 and the fastening device 5, two fastening clamps 7 are arranged relative to each other and attached on two sides above a window, and a shutter 8 is capable of wrapping around an outer circumference of the sleeve tube 3 in which the retractable device 6 is installed. The two fastening clamps 7 are each axially connected to the shaft assembly 4 and the fastening device 5. The shaft assembly 4 and the retractable device 6 are conventional components and are not described herein.The sleeve tube 3 is a hollow tube 31 and an elongated slot 32 is provided on the tube body of the sleeve tube 3 so that one end of the aperture 8 can be arranged and secured in it.
[0010] The fastening device 5 comprises a shaft housing cover 51, a press-fit locking element 52, a spring 53, a spring damping sleeve 54, a damping ring 55, and a safety buckle shaft housing 56. The shaft housing cover 51 comprises a cover flange 511 with a first opening 512, a convex connecting section 513 extending from one side of the cover flange 511 and comprising a second opening 514 that communicates with the first opening 512, at least two snap sections 515 extending from one side of the cover flange 511 and each comprising an elastic snap fastener that connects to an outer circumference of the convex connecting section 513, and a plurality of first embedding rods 517, spaced apart from one another and bearing against an attachment body 516, are arranged on the inner circumference of the convex connecting section 513. In this embodiment, three snap sections 515 are present.Furthermore, first embedding grooves 518, which are connected to the second opening 514, are formed between the majority of first embedding rods 517. The inner diameter of the second opening 514 is larger than the inner diameter of the first opening 512.
[0011] The press-fit element 52 comprises a first mounting column 521 that penetrates the shaft housing cover 51, a projecting rod 522 extending from one end of the first mounting column 521 and encompassing a third opening 523, and a plurality of second embedding rods 525 spaced apart on an outer circumference of a rear section of the projecting rod 522, each embedding with the first embedding grooves 518. Internally, the projecting rod 522 is formed with a first chamber 524 that communicates with the third opening 523. Furthermore, a plurality of second embedding grooves 526 are formed for embedding with the plurality of first embedding rods 517, each between the plurality of second embedding rods 525. In this embodiment, the first fastening column 521 is a square column and an outer circumference of a front section of the projecting rod 522 is formed with a first perforation 527.The first fastening column 521 and the front section of the projecting rod 522 extend from the second opening 514 to reach the first opening 512, and the majority of second embedding rods 525 engage with the first embedding grooves 518 and each rest against the attachment body 516 on the inner circumference of the convex connecting section 513 and fasten to it to prevent the press-locking element 52 from emerging from an outer end of the first opening 512.
[0012] One end 531 of the spring 53 is inserted into the first chamber 524 and is positioned at an upper end of the first chamber 524, and the spring 53 expands and contracts within the first chamber 524.
[0013] The spring damping sleeve 54 comprises an outer sleeve 541, which is arranged at one end of the press-fit element 52, and includes a fourth opening 542. A convex contact section 543 extends from one end 5411 of the outer sleeve 541, and a second fastening column 544 adjoins the convex contact section 543 and extends in the opposite direction from the end 5411 of the outer sleeve 541. Inside, the outer sleeve 541 is provided with a second chamber 545, which communicates with the fourth opening 542. One end of the second chamber 545 is provided with a projecting section 5451, and an annular groove 5452 is arranged on an outer circumference of the projecting section 5451, such that another end 532 of the spring 53 is received in the annular groove 5452 and is attached to the outer circumference of the projecting section 5451.The spring 53 is arranged in the first chamber 524 and the second chamber 545, and the press-lock element 52 is moved back and forth in the second chamber 545 by the spring 53. A plurality of third embedding bars 546 are arranged at intervals on an inner circumference of the second chamber 545 to embed with the plurality of second embedding grooves 526, and a plurality of third embedding grooves 547 are formed between each plurality of third embedding bars 546 to embed with the plurality of second embedding bars 525. The second fastening column 544 is provided with a second perforation 548 to insert a fastening element (not shown).The damping ring 55 is attached to an outer circumference of the convex mounting section 543 and rests against the end 5411 of the outer sleeve 541, and the damping ring 55 forms a seal with an inner lower end of the safety buckle shaft housing 56 to control the rotational resistance of the aperture 8 and to reduce the noise generated by the rotational friction of the aperture 8.
[0014] The safety buckle shaft housing 56 comprises a convex stopper 561, which is arranged at one end of the spring damping sleeve 54 and includes a fifth opening 562, and an outer shaft sleeve 563 extending from one end of the convex stopper 561, wherein the outer diameter of the outer shaft sleeve 563 is smaller than the outer diameter of the convex stopper 561. The convex stopper 561 has a third chamber 564 extending from the fifth opening 562 and sleeves with the cover flange 511. A first contact section 565 is formed from a lower end of the third chamber 564 so that the cover flange 511 can bear against it, and a plurality of snap grooves 5651 are spaced apart and formed on the first contact section 565 to engage with the snap sections 515. In one embodiment, three snap grooves 5651 are arranged to fit the snap sections 515.The outer shaft sleeve 563 comprises a fourth chamber 566 formed by the first contact section 565, a second contact section 567 formed by one end of the fourth chamber 566, and a sixth opening 568 formed by one end of the second contact section 567. The inner diameter of the fourth chamber 566 is smaller than the inner diameter of the third chamber 564, the inner diameter of the second contact section 567 is smaller than the inner diameter of the fourth chamber 566, and the inner diameter of the sixth opening 568 is smaller than the inner diameter of the second contact section 567.The fourth chamber 566 is connected to the fifth opening 562, such that the convex connecting section 513 is arranged in the fourth chamber 566 to allow the snap sections 515 and the snap grooves 5651 to engage with each other, and to allow the cover flange 511 to be embedded in the third chamber 564 and to bear against the first contact section 565. The damping ring 55 rests between the second contact section 567 and the end 5411 of the outer sleeve 541 to form a tight fit. The sixth opening 568 is provided so that the convex contact section 543 and the second mounting pillar 544 pass through it, and the sixth opening 568 is connected to the fourth chamber 566 and the fifth opening 562.
[0015] The fastening device 5 further comprises a fixed safety pin 57, and the safety pin 57 comprises an elastic section 571 that is retracted and inserted into the first perforation 527 and then springs back, a retractable part 572 that is elastic and bent and positioned from an upper end of the elastic section 571, and a retaining ring 573 located at another end of the elastic section 571. The elastic section 571 secures the crimp-lock element 52 in the second chamber 545 to prevent the crimp-lock element 52 from moving back and forth or falling out while being pressed by a user's hand. When the elastic section 571 is pulled out from the first perforation 527, the crimp-lock element 52 is moved back and forth in the second chamber 545.The retractable part 572 is bent into a triangular shape and includes an end 5721 that can be retracted into a hollow section at the upper end of the elastic section 571 for positioning. The width between the top and bottom of the triangular shape of the retractable part 572 is larger than the outer diameter of the elastic section 571 to prevent the retractable part 572 from dislodging during operation. The retaining ring 573 is designed to allow a pull ring 574 to pass through and be secured. The pull ring 574 makes it easy for the user to hold and apply force to increase operational efficiency. Additionally, the retractable part 572 and the retaining ring 573 of the safety pin 57 are folded together by a single wire to prevent personal injury or scratches to objects.The safety pin 57 is characterized by its low weight, safety, and low cost; it is smaller and less expensive than standard safety pins and offers a significant difference in strength compared to standard safety spring buckles. Reference is made to [reference missing]. Fig. 4, Fig. 5, Fig. 6, Fig. 8A, Fig. 8B, Fig. 8C, Fig. 9A, Fig. 9B and Fig. 10. The two mounting brackets 7 each comprise a mounting body 71, which is installed on one side above the window, and a vertical body 72, which is connected to a lower section of the mounting body 71. In each of the two mounting brackets 7, the mounting body 71 is provided with a vertical element 711, which has a plurality of mounting holes 712 along a horizontal section and a plurality of mounting holes 713 along a longitudinal section. The vertical element 711 is bent inwards at a lower end of the longitudinal section. The vertical body 72 is provided with a connecting section 721, which is connected to the lower end of the longitudinal section of the vertical element 711, and a guide section 722 extends downwards from a bottom of the connecting section 721.The guide section 722 is recessed with two grooves 723, each on both sides near a bottom surface, so that the roller shutter 2 can be temporarily positioned before being unlocked during installation. The guide section 722 is provided with a through-hole 724 between the two grooves 723. The two through-holes 724 of the two mounting brackets 7 are each provided so that the first mounting post 521 and a third mounting post 41 of the shaft assembly 4 can pass through and be positioned. The third mounting post 41 is a square post and is positioned at one end of the shaft assembly 4. The two through-holes 724 are designed as square holes to fit the shapes of the first mounting post 521 and the third mounting post 41.Furthermore, each of the two guide sections 722 of the two fastening clamps 7 is provided with a guide groove 725 which is bent outwards on its underside, so that the first fastening column 521 and the third fastening column 41 are guided for positioning by the two guide grooves 725 into the two through holes 724.
[0016] Reference is made to Fig. 4, Fig. 5, Fig. 6, Fig. 7A, Fig. 7B and Fig. 11. When installing the roller blind 2 on a window, the two mounting clips 7 are first nailed to the left and right ends, respectively, and the spring 53, which is arranged in the spring damping sleeve 54, is deformed by pressing the press-locking element 52 to expand or contract in order to secure the mounting device 5. In the invention, the roller blind 2 is arranged by the following two methods. The first method is as shown in Fig. 7A, Fig. 7B, Fig. 8A, Fig. 8B, Fig. 8C, Fig. 10 and Fig. Figure 11 shows the first fastening column 521 at the left end of the sleeve tube 3. The first fastening column 521 is installed with the fastening clamp 7, which is first nailed to the left end. The first fastening column 521 is guided through the guide groove 725 and positioned in the through-hole 724 of the fastening clamp 7, which is nailed to the left end. Then, the safety pin 57 is pulled outwards from the first perforation 527, and the width of the triangular shape of the retractable part 572 is reduced by the first perforation 527 to fully withdraw the safety pin 57, thus releasing the press-locking element 52. Then the third fastening column 41 is installed at the right end of the sleeve tube 3 with the fastening clamp 7, which is nailed to the right end, and the third fastening column 41 is guided through the guide groove 725 and positioned in the through hole 724 of the fastening clamp 7, which is nailed to the right end.The first fastening column 521 is pressed simultaneously to compress the spring 53, which is installed in the first chamber 524 and the second chamber 545, and to cause the press-locking element 52 to move towards the convex contact section 543 in the second chamber 545, so that the third fastening column 41 is positioned in the through-hole 724. Afterwards, the first fastening column 521, which was compressed, is released, and the first fastening column 521 gradually returns to its original shape due to a restoring force from the compressed spring 53, causing the press-locking element 52 to gradually move in the opposite direction to the convex contact section 543 and gradually return to its original position.Therefore, the majority of the second embedding rods 525 rest against and attach to the mounting body 516 to prevent the press-locking element 52 from protruding from an outer side of the first opening 512. Finally, the safety pin 57 is inserted into the first perforation 527, and the press-locking element 52 is locked. The cover 8 can then be opened or closed.
[0017] The second procedure is as in Fig. 7A, Fig. 7B, Fig. 8C, Fig. 9, Fig. 10 and Fig.Figure 11 shows the third fastening post 41 at the right end of the sleeve tube 3. The third fastening post 41 is installed with the fastening clamp 7, which is first nailed to the right end. The third fastening post 41 is guided through the guide groove 725 and positioned in the through-hole 724 of the fastening clamp 7, which is nailed to the right end. Then, the safety pin 57 is pulled outwards from the first perforation 527, and the width of the triangular shape of the retractable part 572 is reduced by the first perforation 527 to fully withdraw the safety pin 57 and release the press-locking element 52. Then the first fastening column 521 is installed at the left end of the sleeve tube 3 with the fastening clamp 7, which is nailed to the left end, and the first fastening column 521 is guided through the guide groove 725 and positioned in the through hole 724 of the fastening clamp 7, which is nailed to the left end.The first fastening column 521 is pressed simultaneously to compress the spring 53, which is installed in the first chamber 524 and the second chamber 545, and to cause the press-locking element 52 to move towards the convex contact section 543 in the second chamber 545, so that the first fastening column 521 is positioned in the through-hole 724. Afterwards, the first fastening column 521, which is compressed, is released, and the first fastening column 521 gradually returns to its original shape due to a restoring force from the compressed spring 53, causing the press-locking element 52 to gradually move in the opposite direction to the convex contact section 543 and gradually return to its original position.Therefore, the majority of the second embedding rods 525 rest against and attach to the mounting body 516 to prevent the press-locking element 52 from protruding from an outer side of the first opening 512. Finally, the safety pin 57 is inserted into the first perforation 527, and the press-locking element 52 is locked. The roller cover 2 can then be positioned and secured by the fastening clips 7 at the left and right ends, and the cover 8 can be opened or closed.
Claims
[1] Roller shutter (2) comprising a sleeve tube (3); a shaft arrangement (4) which is installed in one end of the sleeve tube (3); a fastening device (5) which is installed in the other end of the sleeve tube (3) which is opposite the shaft assembly (4); a retractable device (6) which is installed and retractable in the sleeve tube (3) and is arranged between the shaft assembly (4) and the fastening device (5); two fastening clamps (7) which are axially connected to a third fastening column (41) of the shaft assembly (4) and the fastening device (5), each of the two fastening clamps (7) comprising a fastening body (71) which can be installed on one side above a window and a vertical body (72) which is connected to a lower section of the fastening body (71), the vertical body (72) having a through-hole (724) through which the third fastening column (41) and an end of the fastening device (5) can be passed in order to be positioned; and an aperture (8) that wraps around an outer circumference of the sleeve tube (3) in which the retractable device (6) is installed; the fastening device (5) comprises: a shaft housing cover (51) comprising a cover flange (511) with a first opening (512), a convex connecting section (513) extending from one side of the cover flange (511) and comprising a second opening (514) connected to the first opening (512), at least two snap sections (515) extending from one side of the cover flange (511) and each comprising an elastic snap fastening connected to an outer circumference of the convex connecting section (513), a plurality of first embedding rods (517) spaced apart from one another and bearing against a support body (516) arranged on an inner circumference of the convex connecting section (513), wherein a first embedding groove (518) is provided adjacent to each of the plurality of first embedding rods (517); a press-fit locking element (52) comprising a first fastening column (521) penetrating the shaft housing cover (51) and being inserted into the through-hole (724) for positioning, a projecting rod (522) extending from an end of the first fastening column (521) and comprising a third opening (523) and forming an internal first chamber (524), wherein a plurality of second embedding rods (525) are spaced apart on an outer circumference of a rear section of the projecting rod (522) and, when the shaft housing cover (51) and the press-fit locking element (52) are coupled, each bear against the mounting body (516), wherein a plurality of second embedding grooves (526) for embedding the plurality of first embedding rods (517) are formed between each plurality of second embedding rods (525); a spring (53), wherein one end of the spring (53) is inserted into the first chamber (524) and is arranged at an upper end of the first chamber (524), wherein the spring (53) expands and contracts within the first chamber (524); a spring damping sleeve (54) comprising an outer sleeve (541) arranged at one end of the press-lock element (52) and comprising a fourth opening (542) and a second chamber (545) connected to the fourth opening (542), wherein one end of the second chamber (545) is provided to receive another end of the spring (53), and wherein a plurality of third embedding bars (546) are arranged at intervals on an inner circumference of the second chamber (545), which are embedded in the plurality of second embedding grooves (526), and wherein a plurality of third embedding grooves (547) are formed between each of the plurality of third embedding bars (546) to receive the plurality of second embedding bars (525) therein,wherein a convex support section (543) extends away from one end of the outer sleeve (541) and a second fastening column (544) is adjacent to the convex support section (543) and extends in the opposite direction from the end of the outer sleeve (541); a damping ring (55) which is attached to an outer circumference of the convex contact section (543) and bears against the end of the outer sleeve (541); and a safety locking shaft housing (56) having an inner lower end which forms a seal with the damping ring (55), the safety locking shaft housing (56) further comprising a convex stopper (561) arranged at one end of the spring damping sleeve (54), a fifth opening (562) and an outer shaft sleeve (563) extending from one end of the convex stopper (561), the convex stopper (561) having a third chamber (564) extending from the fifth opening (562) and being fitted over the cover flange (511), a first contact section (565) extending from a lower end of the third chamber (564) so that the cover flange (511) can bear against it, a plurality of snap grooves (5651) being formed at intervals on the first contact section (565) to engage with the snap sections (515) interlock, wherein the outer shaft sleeve (563) defines a fourth chamber (566),wherein a second mounting section (567) is formed at an end of the fourth chamber (566) remote from the convex stopper (561), wherein a sixth opening (568) extends from a lower end of the second mounting section (567), the fourth chamber (566) being connected to the fifth opening (562), and wherein the convex connecting section (513) is receptacleable in the fourth chamber (566) to allow the snap sections (515) and the snap grooves (5651) to engage with each other, so that the cover flange (511) is embedded in the third chamber (564) and abuts the first mounting section (565), wherein the damping ring (55) is arranged abutting between the second mounting section (567) and an end of the outer sleeve (541) to form a tight seal, wherein the convex mounting section (543) and the second mounting column (544) pass through the sixth opening (568),wherein the press-lock element (52) is movable back and forth in the second chamber (545) by the spring (53), wherein, when the press-lock element (52) is pressed against the spring (53), the roller shutter (2) can be suitably mounted and secured by the two fastening clips (7). [2] Roller aperture (2) according to claim 1, wherein the first embedding grooves (518) are each connected to the second opening (514) and an inner diameter of the second opening (514) is larger than an inner diameter of the first opening (512). [3] Roller shutter (2) according to claim 1, wherein the first mounting column (521) is a square column and the first mounting column (521) and a front section of the projecting rod (522) extend through the second opening (514) to reach the first opening (512), wherein the third mounting column (41) is a square column and the through holes (724) of the two mounting clips (7) are square holes which correspond to the shapes of the first mounting column (521) and the third mounting column (41). [4] Roller shutter (2) according to claim 1, wherein an end of the second chamber (545) of the outer sleeve (541) is provided with a projecting section (5451) and an annular groove (5452) arranged on an outer circumference of the projecting section (5451), wherein an end of the spring (53) is received in the annular groove (5452) and is attached to the outer circumference of the projecting section (5451), and wherein the second fastening column (544) is provided with a second perforation (548) for inserting a fastening element. [5] Roller aperture (2) according to claim 1, wherein an outer diameter of the outer sleeve (541) is smaller than an outer diameter of the convex stopper (561), wherein an inner diameter of the fourth chamber (566) is smaller than an inner diameter of the third chamber (564), and wherein an inner diameter of the second contact section (567) is smaller than an inner diameter of the fourth chamber (566). [6] Roller shutter (2) according to claim 1, wherein a first perforation (527) is provided on an outer circumference of a front section of the projecting rod (522), wherein the fastening device (5) further comprises a safety pin (57) comprising an elastic section (571) that is retracted and inserted into the first perforation (527) and then springs back, a retractable part (572) that is elastic and is formed and positioned at an upper end of the elastic section (571) by bending, and a fastening ring (573) that is arranged at another end of the elastic section (571), wherein the retractable part (572) is bent into a triangular shape and comprises an end that can be retractably inserted into a hollow section at the upper end of the elastic section (571) for positioning,wherein a width between a top and a bottom of the triangular shape of the retractable part (572) is greater than an outer diameter of the elastic section (571), and wherein the fastening ring (573) is provided so that a tension ring (574) passes through it and is fastened. [7] Roller shutter (2) according to claim 1, wherein the fastening body (71) is provided by each of the two fastening clips (7) with a vertical element (711) having a plurality of fastening holes (712, 713) on a horizontal section and a longitudinal section therein, wherein the vertical element (711) is bent inwards at a lower end of the longitudinal section and the vertical body (72) is provided with a connecting section (721) which is connected to the lower end of the longitudinal section of the vertical element (711), wherein a guide section (722) extends downwards from a bottom side of the connecting section (721), wherein the guide section (722) has two grooves (723) which are each recessed on both sides so that the roller shutter (2) can be temporarily positioned, wherein the guide section (722) is provided with a through hole (724) between the two grooves (723). is,wherein the through-hole (724) is provided so that the first mounting column (521) and the third mounting column (41) can pass through it and be positioned, wherein the guide section (722) is provided with a guide groove (725) which is bent outwards on its underside, so that the first mounting column (521) and the third mounting column (41) are guided from the guide groove (725) into the through-hole (724) for positioning. [8] Fastening device (5) for a roller shutter (2), comprising: a shaft housing cover (51) comprising a cover flange (511) with a first opening (512), a convex connecting section (513) extending from one side of the cover flange (511) and comprising a second opening (514) connected to the first opening (512), at least two snap sections (515) extending from one side of the cover flange (511) and each comprising an elastic snap fastening connected to an outer circumference of the convex connecting section (513), a plurality of first embedding rods (517) spaced apart from one another and bearing against a support body (516) arranged on an inner circumference of the convex connecting section (513), wherein a first embedding groove (518) is provided adjacent to each of the plurality of first embedding rods (517); a press-fit locking element (52) comprising a first fastening column (521) penetrating the shaft housing cover (51), a projecting rod (522) extending from an end of the first fastening column (521) and comprising a third opening (523) and forming an internal first chamber (524), wherein a plurality of second embedding rods (525) are spaced apart on an outer circumference of a rear section of the projecting rod (522) and, when the shaft housing cover (51) and the press-fit locking element (51) are coupled, each bear against the mounting body (516), wherein a plurality of second embedding grooves (526) for embedding the plurality of first embedding rods (517) are formed between each plurality of second embedding rods (525); a spring (53), wherein one end of the spring (53) is inserted into the first chamber (524) and is arranged at an upper end of the first chamber (524);a spring damping sleeve (54) comprising an outer sleeve (541) arranged at one end of the press-lock element (52) and comprising a fourth opening (542) and a second chamber (545) connected to the fourth opening (542), wherein an end of the second chamber (545) is provided to receive an end of the spring (53), wherein the spring (53) can be expanded and contracted within the first chamber (524) by the spring damping sleeve (54), and wherein a plurality of third embedding rods (546) are arranged at intervals on an inner circumference of the second chamber (545), which are embedded in the plurality of second embedding grooves (526), and wherein a plurality of third embedding grooves (547) are formed between each of the plurality of third embedding rods (546) to receive the plurality of second embedding rods (525) therein,wherein a convex support section (543) extends away from one end of the outer sleeve (541) and a second fastening column (544) is adjacent to the convex support section (543) and extends in the opposite direction from the end of the outer sleeve (541); a damping ring (55) which is attached to an outer circumference of the convex contact section (543) and bears against the end of the outer sleeve (541); and a safety locking shaft housing (56) having an inner lower end which forms a seal with the damping ring (55), the safety locking shaft housing (56) further comprising a convex stopper (561) arranged at one end of the spring damping sleeve (54), a fifth opening (562) and an outer shaft sleeve (563) extending from one end of the convex stopper (561), the convex stopper (561) having a third chamber (564) extending from the fifth opening (562) and being fitted over the cover flange (511), a first contact section (565) extending from a lower end of the third chamber (564) so that the cover flange (511) can bear against it, a plurality of snap grooves (5651) being formed at intervals on the first contact section (565) which are designed so that the snap sections (515) can intervene in them,wherein the outer shaft sleeve (563) defines a fourth chamber (566), wherein a second contact section (567) is formed at an end of the fourth chamber (566) remote from the convex stopper (561), wherein a sixth opening (568) extends from a lower end of the second contact section (567), wherein the fourth chamber (566) is connected to the fifth opening (562), and wherein the convex connecting section (513) is receptive in the fourth chamber (566) to allow the snap sections (515) and the snap grooves (5651) to engage with each other, so that the cover flange (511) is embedded in the third chamber (564) and bears against the first contact section (565), wherein the damping ring (55) is arranged in abutting between the second contact section (567) and an end of the outer sleeve (541) to form a tight condition,wherein the convex mounting section (543) and the second mounting column (544) pass through the sixth opening (568). [9] Fastening device (5) according to claim 8, wherein the first embedding grooves (518) each communicate with the second opening (514) and an inner diameter of the second opening (514) is larger than an inner diameter of the first opening (512). [10] Fastening device (5) according to claim 8, wherein the first fastening column (521) is a square column and the first fastening column (521) and a front section of the protruding rod (522) extend through the second opening (514) to reach the first opening (512). [11] Fastening device (5) according to claim 8, wherein one end of the second chamber (545) of the outer sleeve (541) is provided with a projecting section (5451) and an annular groove (5452) arranged on an outer circumference of the projecting section (5451), wherein another end of the spring (53) is received in the annular groove (5452) and is attached to the outer circumference of the projecting section (5451), wherein the second fastening column (544) is provided with a second perforation (548) for inserting a fastening element. [12] Fastening device (5) according to claim 8, wherein an outer diameter of the outer sleeve (541) is smaller than an outer diameter of the convex stopper (561), wherein an inner diameter of the fourth chamber (566) is smaller than an inner diameter of the third chamber (564) and an inner diameter of the second contact section (567) is smaller than an inner diameter of the fourth chamber (566). [13] Fastening device (5) according to claim 8, wherein a first perforation (527) is provided on an outer circumference of a front section of the projecting rod, the fastening device (5) further comprising a safety pin (57) comprising an elastic section (571) that is retracted and inserted into the first perforation (527) and then springs back, a retractable part (572) that is elastic and is formed and positioned at an upper end of the elastic section (571) by bending, and a fastening ring (573) that is arranged at another end of the elastic section (571), wherein the retractable part (572) is bent into a triangular shape and comprises an end that can be retractably inserted into a hollow section at the upper end of the elastic section (571) for positioning,wherein a width between a top and a bottom of the triangular shape of the retractable part (572) is greater than an outer diameter of the elastic section (571), and wherein the fastening ring (573) is provided so that a tension ring (574) passes through it and is fastened therein.
Citation Information
Patent Citations
AU002013204634B2
termination
DE19933124A1
Idler
US20100200179A1
Roller blind mounting system and parts therefor
US8839841B2