AU2017100643A4 - Roller blind mechanism with ball chain - Google Patents
Roller blind mechanism with ball chain Download PDFInfo
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- AU2017100643A4 AU2017100643A4 AU2017100643A AU2017100643A AU2017100643A4 AU 2017100643 A4 AU2017100643 A4 AU 2017100643A4 AU 2017100643 A AU2017100643 A AU 2017100643A AU 2017100643 A AU2017100643 A AU 2017100643A AU 2017100643 A4 AU2017100643 A4 AU 2017100643A4
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- Australia
- Prior art keywords
- bracket
- shell
- roller tube
- adjusting element
- connecting groove
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- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
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Abstract
ROLLER BLIND MECHANISM WITH BALL CHAIN A roller blind mechanism has a first bracket (10), a second bracket (20), a first adjusting element (30), a second adjusting element (40), a roller 5 blind module (50), and a spring device (60). The spring device (60) is inserted into the roller blind module (50). The first adjusting element (10) is inserted into the spring device (60). The second adjusting element (40) is inserted into the roller blind module (50) and is opposite to the first adjusting element (30). The second adjusting element (40) is detachably mounted on the second 10 bracket (20). The second adjusting element (40) is detachably mounted on the second bracket (20). A pulling force applied to a ball chain of the second adjusting element (40) may be adjusted by the spring device (60). cn
Description
ι 2017100643 01 Jun2017
ROLLER BLIND MECHANISM WITH BALL CHAIN
This application claims the benefit of China patent application No. 201620544781.5, filed on June 06, 2016, the entire contents of which are incorporated herein by reference. 5 1. Field of the Utility Model
The present utility model relates to a roller blind mechanism with a ball chain, and more particularly to a roller blind mechanism that is laborsaving and convenient in use, and may improve the use performance of the roller blind mechanism. 10 2. Description of Related Art A conventional roller blind mechanism with a ball chain is used to block the light and decorate the household environment, and is commonly used with great popularity. Furthermore, users demand that the conventional roller blind mechanism with a ball chain should be easy to operate, but in fact the 15 structure of the conventional roller blind mechanism with a ball chain is heavy, and the assembly and the disassembly of the conventional roller blind mechanism with a ball chain are inconvenient. A pulling force for driving the ball chain of the conventional roller blind mechanism is constant and cannot be adjusted. A pulling force applied to the ball chain of the conventional roller 20 blind mechanism by users is large and may easily break the ball chain.
Additionally, one of the hands of the user pulling the ball chain may be hurt by the ball chain. The use performance of the conventional roller blind mechanism is not ideal.
The objective of the present utility model is to provide a roller blind 2 2017100643 01 Jun2017 mechanism with a ball chain to improve the use performance of the roller blind mechanism.
The roller blind mechanism has a first bracket, a second bracket, a first adjusting element, a second adjusting element, a roller blind module, and a 5 spring device. The first bracket has a first combining surface, a side surface, a first connecting groove, a first opening, and a first elastic sheet. The first combining surface is formed on the first bracket. The side surface is formed on the first bracket and is connected to the first combining surface of the first bracket. The first connecting groove is formed in the first combining surface of 10 the first bracket. The first opening is formed through the side surface of the first bracket and is in communication with the first connecting groove of the first bracket. The first elastic sheet is formed on and protrudes from the first combining surface of the first bracket, and is inserted into the first connecting groove of the first bracket. 15 The second bracket and the first bracket are disposed at a spaced interval. The second bracket has a second combining surface, a side surface, a second connecting groove, a second opening, and a second elastic sheet. The second combining surface is formed on the second bracket and faces the first combining surface of the first bracket. The side surface of the second bracket is 20 formed on the second bracket and is connected to the second combining surface of the second bracket. The second connecting groove is formed in the second combining surface of the second bracket. The second opening is formed through the side surface of the second bracket and is in communication with the second connecting groove of the second bracket. The second elastic sheet is 3 2017100643 01 Jun2017 formed on and protrudes from the second combining surface of the second bracket, and is inserted into the second connecting groove of the second bracket.
The first adjusting element is detachably mounted on the first bracket. 5 The first adjusting element has a first shell, a projection, and a first adjusting shaft. The first shell is detachably inserted into the first connecting groove of the first bracket via the first opening. The first shell has a front surface, a rear surface, a side surface, multiple first blocks, and a first crisscross groove. The rear surface of the first shell is opposite to the front surface of the first shell and 10 abuts against the first elastic sheet of the first bracket. The side surface is located between the front surface of the first shell and the rear surface of the first shell. The first blocks are formed on and protrude from the rear surface of the first shell and are inserted into the first connecting groove of the first bracket via the first opening. The first crisscross groove is formed in the rear 15 surface of the first shell among the first blocks of the first shell. The projection is mounted in the first shell and extends out of the front surface of the first shell. The first adjusting shaft is mounted in the first shell, is connected to the projection for driving the projection to rotate, and has a slot exposed out of the side surface of the first shell. 20 The second adjusting element is detachably mounted on the second bracket. The second adjusting element has a second shell, a sprocket, a ball chain, and a roller tube drive member. The second shell is detachably inserted into the second connecting groove of the second bracket. The second shell has a front surface, a rear surface, a bottom surface, a bottom opening, multiple 4 2017100643 01 Jun2017 second blocks, and a second crisscross groove. The rear surface of the second shell is opposite to the front surface of the second shell and abuts against the second elastic sheet of the second bracket. The bottom surface of the second shell is connected to the front surface of the second shell. The bottom opening 5 is formed through the bottom surface of the second shell. The second blocks are formed on and protrude from the rear surface of the second shell and are inserted into the second connecting groove of the second bracket via the second opening. The second crisscross groove is formed in the rear surface of the second shell between the second blocks of the second shell. The sprocket is 10 rotatably mounted in the second shell of the second adjusting element. The ball chain is mounted in the second shell of the second adjusting element, engages with the sprocket, and extends out of the bottom opening of the second shell. The roller tube drive member is co-rotatably mounted on the sprocket and extends out of the front surface of the second shell. 15 The roller blind module is mounted between the first adjusting element and the second adjusting element. The roller blind module has a roller tube and a blind. The roller tube is hollow and has an outer surface, a first end, and a second end. The first end faces the front surface of the first shell of the first adjusting element. The second end is opposite to the first end of the roller tube 20 and faces the front surface of the second shell. The blind is retractably wound on the outer surface of the roller tube and has a top edge fixed on the outer surface of the roller tube.
The spring device is inserted into the first end of the roller tube and is connected to the first adjusting element, wherein the spring device is connected 5 2017100643 01 Jun2017 to the roller tube drive member of the second adjusting element by the roller tube.
Furthermore, the roller tube has an inner surface and a first retaining portion formed in the inner surface of the roller tube. The spring device has an 5 outer head, a connecting rod, an inner head, and a spring. The outer head is inserted into and is connected to the first end of the roller tube. The outer head has an outer surface and a second retaining portion. The outer surface of the outer head faces the inner surface of the roller tube. The second retaining portion is formed on the outer surface of the outer head and abuts against the 10 first retaining portion of the roller tube. The connecting rod is rotatably mounted on the outer head of the spring device and is inserted into the first end of the roller tube. The inner head is coactively mounted on the connecting rod, is located in the roller tube, and has an outer surface and a third retaining portion. The outer surface of the inner head faces the inner surface of the roller 15 tube. The third retaining portion is formed on the outer surface of the inner head and abuts against the first retaining portion of the roller tube. The spring is mounted on the connecting rod of the spring device and is connected to the inner head.
Furthermore, the roller tube drive member of the second adjusting 20 element has an outer surface and a fourth retaining portion. The outer surface of the roller tube drive member faces the inner surface of the roller tube. The fourth retaining portion is formed on the outer surface of the roller tube drive member and abuts against the first retaining portion of the roller tube.
Furthermore, the first connecting groove and the second connecting 6 2017100643 01 Jun2017 groove are dovetail grooves. The first bracket has two first waist-shaped holes formed through the first bracket at a spaced interval. The second bracket has two second waist-shaped holes formed through the second bracket at a spaced interval. The first bracket and the second bracket are L-shaped. 5 Furthermore, the first adjusting element has a first through hole and a first protrusion. The first through hole is formed on the rear surface of the first shell and is located at a center of the first crisscross groove. The first protrusion is mounted in the first shell, extends out of the first shell, and has a first tapered end. The first tapered end of the first protrusion protrudes out of the first 10 through hole. The second adjusting element has a second through hole. The second through hole is formed on the rear surface of the second shell and is located at a center of the second crisscross groove.
The torsion of the spring device of the roller blind mechanism may be easily adjusted by the first adjusting shaft. A pulling force applied to the ball 15 chain may be reduced by the spring device to prevent that the ball chain hurts users or is broken. The safety and the use performance of the roller blind mechanism are improved. In addition, the first adjusting element may be quickly mounted on and detached from the first bracket by the first blocks and the first connecting groove, and the second adjusting element may be quickly 20 detached from the second bracket by the second blocks and the second connecting groove. The assembly and the disassembly of the roller blind mechanism with the ball chain are convenient. The structure of the roller blind mechanism with the ball chain is simplified to reduce the weight of the roller blind mechanism. 7 2017100643 01 Jun2017
Other objectives, advantages and novel features of the utility model will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
Fig. 1 is a perspective view of a roller blind mechanism with a ball 5 chain in accordance with the present utility model;
Fig. 2 is an enlarged exploded perspective view of the roller blind mechanism in Fig. 1;
Fig. 3 is another enlarged exploded perspective view of the roller blind mechanism in Fig. 1; 10 Fig. 4 is a front side view of the roller blind mechanism in Fig. 1;
Fig. 5 is a perspective view of a first bracket and a first adjusting element of the roller blind mechanism in Fig. 1;
Fig. 6 is an exploded perspective view of the first bracket and the first adjusting element of the roller blind mechanism in Fig. 5; 15 Fig. 7 is a perspective view of a second bracket and a second adjusting element of the roller blind mechanism in Fig. 1; and
Fig. 8 is an exploded perspective view of the second bracket and the second adjusting element of the roller blind mechanism in Fig. 7.
With reference to Figs. 1 to 4, a roller blind mechanism with a ball 20 chain in accordance with the present utility model comprises a first bracket 10, a second bracket 20, a first adjusting element 30, a second adjusting element 40, a roller blind module 50, and a spring device 60.
With reference to Figs. 2, 5, and 6, the first bracket 10 has a first combining surface 11, a side surface, a first connecting groove 12, a first 8 2017100643 01 Jun2017 opening 13, and a first elastic sheet 14. The first combining surface 11 is formed on the first bracket 10. The side surface of the first bracket 10 is formed on the first bracket 10 and is connected to the first combining surface 11 of the first bracket 10. The first connecting groove 12 is formed in the first combining 5 surface 11 of the first bracket 10. The first opening 13 is formed through the side surface of the first bracket 10 and is in communication with the first connecting groove 12 of the first bracket 10. The first elastic sheet 14 is formed on and protrudes from the first combining surface 11 of the first bracket 10, and is inserted into the first connecting groove 12 of the first bracket 10. 10 With reference to Figs. 1 and 4, the second bracket 20 and the first bracket 10 are disposed at a spaced interval. With reference to Figs. 3, 7, and 8, the second bracket 20 has a second combining surface 21, a side surface, a second connecting groove 22, a second opening 23, and a second elastic sheet 24. The second combining surface 21 is formed on the second bracket 20 and 15 faces the first combining surface 11 of the first bracket 10. The side surface is formed on the second bracket 20 and is connected to the second combining surface 21 of the second bracket 20. The second connecting groove 22 is formed in the second combining surface 21 of the second bracket 20. The second opening 23 is formed through the side surface of the second bracket 20 20 and is in communication with the second connecting groove 22 of the second bracket 20. The second elastic sheet 24 is formed on and protrudes from the second combining surface 21 of the second bracket 20, and is inserted into the second connecting groove 22 of the second bracket 20.
With reference to Figs. 2, 5, and 6, the first adjusting element 30 is 9 2017100643 01 Jun2017 detachably mounted on the first bracket 10. The first adjusting element 30 has a first shell 31, a projection 32, and a first adjusting shaft 33. The first shell 31 is detachably inserted into the first connecting groove 12 of the first bracket 10 via the first opening 13. The first shell 31 has a front surface, a rear surface, a 5 side surface, multiple first blocks 311, and a first crisscross groove 312. The rear surface of the first shell 31 is opposite to the front surface of the first shell 31 and abuts against the first elastic sheet 14 of the first bracket 10. The side surface of the first shell 31 is located between the front surface of the first shell 31 and the rear surface of the first shell 31. The first blocks 311 are formed on 10 the rear surface of the first shell 31 and are inserted into the first connecting groove 12 of the first bracket 10 via the first opening 13. The first crisscross groove 312 is formed in the rear surface of the first shell 31 between the first blocks 311 of the first shell 31. The projection 32 is mounted in the first shell 31 and extends out of the front surface of the first shell 31. The first adjusting 15 shaft 33 is mounted in the first shell 31 via the side surface of the first shell 31, is connected to the projection 32 for driving the projection 32 to rotate, and has a slot 34 exposed out of the side surface of the first shell 31.
With reference to Figs. 3, 7, and 8, the second adjusting element 40 is detachably mounted on the second bracket 20. The second adjusting element 40 20 has a second shell 41, a sprocket 42, a ball chain 43, and a roller tube drive member 44. The second shell 41 is detachably inserted into the second connecting groove 22 of the second bracket 20 via the second opening 23. The second shell 41 has a front surface, a rear surface, a bottom surface, a bottom opening, multiple second blocks 411, and a second crisscross groove 412. The ίο 2017100643 01 Jun2017 front surface of the second shell 41 faces the front surface of the first shell 31 at a spaced interval. The rear surface of the second shell 41 is opposite to the front surface of the second shell 41 and abuts against the second elastic sheet 24 of the second bracket 20. The bottom surface of the second shell 41 is connected 5 to the front surface of the second shell 41. The bottom opening is formed through the bottom surface of the second shell 41. The second blocks 411 are formed on and protrude from the rear surface of the second shell 41 and are inserted into the second connecting groove 22 of the second bracket 20 via the second opening 23. The second crisscross groove 412 is formed in the rear 10 surface of the second shell 41 between the second blocks 411 of the second shell 41. The sprocket 42 is rotatably mounted in the second shell 41 of the second adjusting element 40. The ball chain 43 is mounted in the second shell 41 of the second adjusting element 40, engages with the sprocket 42, and extends out of the bottom opening of the second shell 41. The roller tube drive 15 member 44 is co-rotatably mounted on the sprocket 42, extends out of the front surface of the second shell 41, and faces the projection 32 of the first adjusting element 30 at a spaced interval.
With reference to Figs. 1 to 3, the roller blind module 50 is mounted between the first adjusting element 30 and the second adjusting element 40. 20 The roller blind module 50 has a roller tube 51 and a blind 52. The roller tube 51 is hollow and circular. The roller tube 51 has an outer surface, a first end 511, and a second end 512. The first end 511 faces the front surface of the first shell 31 of the first adjusting element 30. The second end 512 is opposite the first end 511 of the roller tube 51 and faces the front surface of the second shell 11 2017100643 01 Jun2017 41. The blind 52 is retractably wound on the outer surface of the roller tube 51 between the front surfaces of the shells 31,41 of the adjusting elements 30, 40 and has a top edge fixed on the outer surface of the roller tube 51.
With reference to Figs. 1 and 2, the spring device 60 is inserted into the 5 first end 511 of the roller tube 51 and is connected to the first adjusting element 30, wherein the spring device 60 is connected to the roller tube drive member 44 of the second adjusting element 40 via the roller tube 51.
With reference to Fig. 2, the roller tube 51 has an inner surface and a first retaining portion 513 formed in the inner surface of the roller tube 51. The 10 spring device 60 has an outer head 61, a connecting rod 62, an inner head 63, and a spring 64. The outer head 61 is inserted into and is connected to the first end 511 of the roller tube 51. The outer head 61 has an outer surface and a second retaining portion 65. The outer surface of the outer head 61 faces the inner surface of the roller tube 51. The second retaining portion 65 is formed on 15 the outer surface of the outer head 61 and abuts against the first retaining portion 513 of the roller tube 51. The connecting rod 62 is rotatably mounted on the outer head 61 of the spring device 60 and is inserted into the first end 511 of the roller tube 51. The inner head 63 is coactively mounted on the connecting rod 62, is located in the roller tube 51, and has an outer surface and 20 a third retaining portion 66. The outer surface of the inner head 63 faces the inner surface of the roller tube 51. The third retaining portion 66 is formed on the outer surface of the inner head 63 and abuts against the first retaining portion 513 of the roller tube 51. The spring 64 is mounted on the connecting rod 62 of the spring device 60 and is connected to the inner head 63. 12 2017100643 01 Jun2017
With reference to Fig. 3, the roller tube drive member 44 of the second adjusting element 40 has an outer surface and a fourth retaining portion 441. The outer surface of the roller tube drive member 44 faces the inner surface of the roller tube 51. The fourth retaining portion 441 is formed on the outer 5 surface of the roller tube drive member 44 and abuts against the first retaining portion 513 of the roller tube 51.
With reference to Figs. 2, 3, and 5, the first connecting groove 12 and the second connecting groove 22 are dovetail grooves. The first bracket 10 has two first waist-shaped holes 15 formed through the first bracket 10 at a spaced 10 interval. The second bracket 20 has two second waist-shaped holes 25 formed through the second bracket 20 at a spaced interval. The first bracket 10 and the second bracket 20 are L-shaped.
With reference to Figs. 2, 5, and 6, the first adjusting element 30 has a first through hole 35 and a first protrusion 36. The first through hole 35 is 15 formed on the rear surface of the first shell 31 and is located at a center of the first crisscross groove 312. The first protrusion 36 is mounted in the first shell 31, extends out of the first shell 31, and has a first tapered end 361. The first tapered end 361 of the first protrusion 36 protrudes out of the first through hole 35. The second adjusting element 40 has a second through hole 45. The second 20 through hole 45 is formed on the rear surface of the second shell 41 and is located at a center of the second crisscross groove 412.
In use, the roller blind mechanism may be mounted on a wall or a ceiling. For example, the first bracket 10 and the second bracket 20 are securely mounted on the ceiling at a spaced interval. Screws are respectively inserted 13 2017100643 01 Jun2017 through the first waist-shaped holes 15 and the second waist-shaped holes 25, and are drilled into the ceiling to fix the first bracket 10 and the second bracket 20 on the ceiling. The spring device 60 is inserted into the roller tube 51 of the roller blind module 50. The second retaining portion 65 and the third retaining 5 portion 66 of the spring device 60 abut against the first retaining portion 513 of the roller blind module 50. The projection 32 of the first adjusting element 30 is inserted into the outer head 61 of the spring device 60, and is coactively connected to the connecting rod 62 of the spring device 60.
The roller tube drive member 44 of the second adjusting element 40 is 10 inserted into the second end 512 of the roller tube 51. The fourth retaining portion 441 of the second adjusting element 40 abuts against the first retaining portion 513 of the roller blind module 50. Then, the first blocks 311 of the first adjusting element 30 are inserted into the first connecting groove 12 of the first bracket 10 via the first opening 13 of the first bracket 10. The first elastic sheet 15 14 of the first bracket 10 is inserted into the first crisscross groove 312 of the first adjusting element 30 and abuts against the first shell 31 to position the first adjusting element 30 on the first bracket 10.
The second blocks 411 of the second adjusting element 40 are inserted into the second connecting groove 22 of the second bracket 20 via the second 20 opening 23 of the second bracket 20. The second elastic sheet 24 of the second bracket 20 is inserted into the second crisscross groove 412 of the second adjusting element 40 and abuts against the second shell 41 to position the second adjusting element 40 on the second bracket 20. The first adjusting element 30, the roller blind module 50, and the second adjusting element 40 are 14 2017100643 01 Jun2017 disposed between the first bracket 10 and the second bracket 20.
In adjustment of the spring device 60, a hand tool or an electric tool operated by a user may be inserted into the slot 34 of the first adjusting shaft 33 to drive the first protrusion 36 to rotate. The connecting rod 62 and the inner 5 head 63 of the spring device 60 are co-rotated with the first protrusion 36 for adjusting the torsion of the spring device 60.
The roller tube drive member 44 of the second adjusting element 40 is connected to the spring device 60 by the roller tube 51. When the torsion of the spring device 60 is increased, the pulling force applied to the ball chain 43 is 10 decreased.
To detach the first adjusting element 30 from the first bracket 10, a demounting tool operated by the user is inserted into the first crisscross groove 312 and pushes the first elastic sheet 14. The first blocks 311 of the first adjusting element 30 may be slid out of the first connecting groove 12 of the 15 first bracket 10. To detach the second adjusting element 40 from the second bracket 20, the demounting tool operated by the user is inserted into the second crisscross groove 412 and pushes the second elastic sheet 24. The second blocks 411 of the second adjusting element 40 may be slid out of the second connecting groove 22 of the second bracket 20. 20 Accordingly, the torsion of the spring device 60 may be easily adjusted by the first adjusting shaft 33 to reduce the pulling force applied to the ball chain 43 and prevent that the ball chain 43 hurts users or is broken. The safety and the use performance of the roller blind mechanism are improved.
In addition, the first blocks 311 of the first adjusting element 30 are 15 2017100643 01 Jun2017 easily slid into the first connecting groove 12 since the first connecting groove 12 is a dovetail groove. The second blocks 411 of the second adjusting element 40 are easily slid into the second connecting groove 22 since the second connecting groove 22 is a dovetail groove. The first adjusting element 30 may 5 be quickly mounted on and detached from the first bracket 10 by the first blocks 311 and the first connecting groove 12. The first adjusting element 30 is easily positioned on the first bracket 10 by the first elastic sheet 14. The second adjusting element 40 may be quickly detached from the second bracket 20 by the second blocks 411 and the second connecting groove 22. The second 10 adjusting element 40 is easily positioned on the second bracket 20 by the second elastic sheet 24. The assembly and the disassembly of the roller blind mechanism with the ball chain 43 are convenient. The first bracket 10 and the second bracket 20 are L-shaped. The structure of the roller blind mechanism with the ball chain 43 is simplified to reduce the weight of the roller blind 15 mechanism.
It will be understood that the term “comprise” and any of its derivatives (eg comprises, comprising) as used in this specification is to be taken to be inclusive of features to which it refers, and is not meant to exclude the presence of any additional features unless otherwise stated or implied. 20 The reference to any prior art in this specification is not, and should not be taken as, an acknowledgement of any form of suggestion that such prior art forms part of the common general knowledge.
It will be appreciated by those skilled in the art that the invention is not restricted in its use to the particular application described. Neither is the present 2017100643 01 Jun2017 16 invention restricted in its preferred embodiment with regard to the particular elements and/or features described or depicted herein. It will be appreciated that various modifications can be made without departing from the principles of the invention. Therefore, the invention should be understood to include all such 5 modifications in its scope.
Claims (5)
- THE CLAIMS DEFINING THE UTILITY MODEL ARE AS FOLLOWS: l.A roller blind mechanism with a ball chain comprising: a first bracket having a first combining surface formed on the first bracket; a side surface formed on the first bracket and connected to the first combining surface of the first bracket; a first connecting groove formed in the first combining surface of the first bracket; a first opening formed through the side surface of the first bracket and communicating with the first connecting groove of the first bracket; and a first elastic sheet formed on and protruding from the first combining surface of the first bracket, and inserted into the first connecting groove of the first bracket; a second bracket, disposed at a spaced interval from the first bracket and having a second combining surface formed on the second bracket and facing the first combining surface of the first bracket; a side surface formed on the second bracket and connected to the second combining surface of the second bracket; a second connecting groove formed in the second combining surface of the second bracket; a second opening formed through the side surface of the second bracket and communicating with the second connecting groove of the second bracket; and a second elastic sheet formed on and protruding from the second combining surface of the second bracket, and inserted into the second connecting groove of the second bracket; a first adjusting element detachably mounted on the first bracket and having a first shell detachably inserted into the first connecting groove of the first bracket via the first opening and having a front surface; a rear surface being opposite to the front surface of the first shell and abutting against the first elastic sheet of the first bracket; a side surface located between the front surface of the first shell and the rear surface of the first shell; multiple first blocks formed on and protruding from the rear surface of the first shell and inserted into the first connecting groove of the first bracket via the first opening; and a first crisscross groove formed in the rear surface of the first shell among the first blocks of the first shell; a projection mounted in the first shell and extending out of the front surface of the first shell; and a first adjusting shaft mounted in the first shell, connected to the projection for driving the projection to rotate, and having a slot exposed out of the side surface of the first shell; a second adjusting element detachably mounted on the second bracket and having a second shell detachably inserted into the second connecting groove of the second bracket and having a front surface; a rear surface being opposite to the front surface of the second shell and abutting against the second elastic sheet of the second bracket; a bottom surface connected to the front surface of the second shell; a bottom opening formed through the bottom surface of the second shell; multiple second blocks formed on and protruding from the rear surface of the second shell and inserted into the second connecting groove of the second bracket via the second opening; and a second crisscross groove formed in the rear surface of the second shell among the second blocks of the second shell; a sprocket rotatably mounted in the second shell of the second adjusting element; a ball chain mounted in the second shell of the second adjusting element, engaging with the sprocket, and extending out of the bottom opening of the second shell; and a roller tube drive member co-rotatably mounted on the sprocket and extending out of the front surface of the second shell; a roller blind module mounted between the first adjusting element and the second adjusting element and having a roller tube being hollow and having an outer surface; a first end facing the front surface of the first shell of the first adjusting element; and a second end being opposite to the first end of the roller tube and facing the front surface of the second shell; and a blind retractably wound on the outer surface of the roller tube and having a top edge fixed on the outer surface of the roller tube; and a spring device inserted into the first end of the roller tube and connected to the first adjusting element, wherein the spring device is connected to the roller tube drive member of the second adjusting element by the roller tube.
- 2. The roller blind mechanism as claimed in claim 1, wherein the roller tube has an inner surface and a first retaining portion formed in the inner surface of the roller tube; and the spring device has an outer head inserted into and connected to the first end of the roller tube and having an outer surface facing the inner surface of the roller tube; and a second retaining portion formed on the outer surface of the outer head and abutting against the first retaining portion of the roller tube; a connecting rod rotatably mounted on the outer head of the spring device and inserted into the first end of the roller tube; an inner head coactively mounted on the connecting rod, located in the roller tube, and having an outer surface facing the inner surface of the roller tube; and a third retaining portion formed on the outer surface of the inner head and abutting against the first retaining portion of the roller tube; and a spring mounted on the connecting rod of the spring device and connected to the inner head.
- 3. The roller blind mechanism as claimed in claim 2, wherein the roller tube drive member of the second adjusting element has an outer surface of the roller tube drive member facing the inner surface of the roller tube; and a fourth retaining portion formed on the outer surface of the roller tube drive member and abutting against the first retaining portion of the roller tube.
- 4. The roller blind mechanism as claimed in any one of claims 1 to 3, wherein the first connecting groove and the second connecting groove are dovetail grooves, the first bracket has two first waist-shaped holes formed through the first bracket at a spaced interval, the second bracket has two second waist-shaped holes formed through the second bracket at a spaced interval, and the first bracket and the second bracket are L-shaped.
- 5. The roller blind mechanism as claimed in any one of claims 1 to 3, wherein the first adjusting element has a first through hole formed on the rear surface of the first shell and located at a center of the first crisscross groove; and a first protrusion mounted in the first shell, extending out of the first shell, and having a first tapered end protruding out of the first through hole; and the second adjusting element has a second through hole formed on the rear surface of the second shell and located at a center of the second crisscross groove.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620544781.5 | 2016-06-06 | ||
| CN201620544781.5U CN206016637U (en) | 2016-06-06 | 2016-06-06 | A kind of manual drawing bead chain roller shutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2017100643A4 true AU2017100643A4 (en) | 2017-07-06 |
Family
ID=58241642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2017100643A Ceased AU2017100643A4 (en) | 2016-06-06 | 2017-06-01 | Roller blind mechanism with ball chain |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206016637U (en) |
| AU (1) | AU2017100643A4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888510B (en) * | 2016-06-06 | 2018-01-09 | 江门市明星窗帘制品有限公司 | A kind of manual drawing bead chain roller shutter |
-
2016
- 2016-06-06 CN CN201620544781.5U patent/CN206016637U/en not_active Withdrawn - After Issue
-
2017
- 2017-06-01 AU AU2017100643A patent/AU2017100643A4/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN206016637U (en) | 2017-03-15 |
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