The present invention relates to window blind winding technology and more particularly, to a cord winding assembly with tilt members and a window blind using the cord winding assembly.
At present, there are many kinds of cord winding assemblies used on window blinds, and their purpose is to facilitate users to adjust indoor lighting, ventilation or concealment, etc. However, when the slats of the window blind are to be folded or extended, the slats need to be turned before they can be folded or extended. As a result, it is really inconvenient to operate, and it will also increase the complexity of the overall window blind components or related parts.
The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a window blind, which comprises two cord winding assemblies. With the technical feature that the rotating rod and the tilt members of the cord winding assemblies are arranged in the same axial direction in sequence, the effect of almost synchronous rotation can be achieved, thereby optimizing the complexity of the overall blind window components or related parts. The window blind disclosed by the present invention comprises a headrail, a controller, a rotating rod, a pivoting member, a blind body, a bottom rail, two lift cord sets, two tilt cord sets and two cord winding assemblies. The controller is installed on one side of the headrail. The rotating rod, the pivoting member and the two cord winding assemblies are all set on the headrail. The controller is electrically connected to a micro-control unit of the pivoting member, so that the pivoting member is electrically controlled by the micro-control unit. The rotating rod has one end thereof connected to the pivoting member and pivoted by the pivoting member to produce movement, and an opposite end thereof passed through the rotating members and the tilt members of the two cord winding assemblies. The blind body comprises a plurality of slats. The blind body has one side thereof connected to the headrail, and an opposite side thereof connected to the bottom rail. The lift cord sets have respective one ends thereof respectively set on the rotating members of the cord winding assemblies, and respective opposite ends thereof respectively inserted through a respective perforation of the headrail and connected with the slats of the blind body and then fixed to the bottom rail. The tilt cord sets have respective one ends thereof respectively tied to the tilt members of the cord winding assemblies, and respective opposite ends thereof respectively inserted through the respective perforations of the headrail and connected with the slats of the blind body and then fixed to the bottom rail. Each cord winding assembly comprises a base, two rotating members, and a tilt member. The base comprises a first accommodating portion, a second accommodating portion and a third accommodating portion. The first accommodating portion has a cord hole penetrated through the bottom thereof. The second accommodating portion has a cord hole penetrated through the bottom thereof. The third accommodating portion has a tilt cord hole penetrated through the bottom thereof and is provided with a protrusion. The second accommodating portion is located between the first accommodating portion and the third accommodating portion. Each rotating member is a hollow tube body and forms an outer peripheral wall and an inner peripheral wall. The outer peripheral wall of each rotating member comprises a large-diameter end, a wire guide section and a small-diameter end. The large-diameter end and the small-diameter end of each rotating member are respectively pivoted on the first accommodating portion and the second accommodating portion of the base. The wire guide section surrounds the outer peripheral wall of the rotating member and is connected to the large-diameter end. The wire guide section converges from the large-diameter end to the small-diameter end. The outer peripheral wall of each rotating member is recessed in the direction of the inner peripheral wall to form a guide sliding portion that communicates with the outside world. Each rotating member is provided with a guide slider. The guide slider is pivotally set on the associating guide sliding portion. The tilt member is pivotally connected to the third accommodating portion of the base. The two retaining walls of the small-diameter end of the tilt member are blocked by the protrusion of the third accommodating portion of the base after a predetermined pivot.
In summary, in this way, with the technical feature that the rotating rod and the rotating members and the tilt members of the cord winding assemblies are arranged in the same axial direction in sequence, the effect of almost synchronous rotation can be achieved, thereby optimizing the complexity of the overall blind window components or related parts.
The applicant first states here that throughout the specification, including the preferred embodiment described below and the claims in the scope of patent application, the terms related to directionality are based on the directions in the drawings. Secondly, in the preferred embodiment and drawings to be described below, the same element numbers represent the same or similar elements or their structural features. Moreover, the detailed structure, characteristics, assembly or use, manufacturing and other methods of the present invention will be described in the detailed description of the subsequent embodiments. However, those with ordinary knowledge in the field of the present invention should be able to understand that these detailed descriptions and the examples listed in the present invention are only used to support the explanation that the present invention can actually be implemented, and are not intended to limit the patent scope of the present invention.
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The controller 3 is installed on one side of the headrail 2. The rotating rod 4, the pivoting member 5 and the two cord winding assemblies 100 are all contained in the headrail 2. The controller 3 is respectively and electrically connected to a micro-control unit 51 and a turning control unit 53 in the pivoting member 5 by a wire 301 in parallel, and the pivoting member 5 is electrically controlled by the micro-control unit 51 to generate a pivoting movement. One end of the rotating rod 4 is connected to the pivoting member 5 and is pivoted by the pivoting member 5 to produce movement. The other end of the rotating rod 4 is sequentially threaded through the two rotating members 20 of the two cord winding assemblies 100 in the form of a hollow tube, so that the two rotating members 20 of the two cord winding assemblies 100 are driven by the rotation of the pivoting member 5 to drive the rotating rod 4 to rotate accordingly. One side of the blind body 6 is connected to the bottom of the headrail 2, and the bottom rail 7 is connected to the other side of the blind body 6, so that the blind body 6 is between the headrail 2 and the bottom rail 7. One end of each of the two lift cord sets 8 is respectively connected to the two cord winding assemblies 100 and is rotated by the two cord winding assemblies 100. The other ends of the two lift cord sets 8 are respectively pierced through two perforations 200 of the headrail 2 and connected to the plural slats 61 of the blind body 6 and then fixed on the bottom rail 7 so that the slats 61 of the blind body 6 and the bottom rail 7 can be rotated by the two cord winding assemblies 100 and then show a state of folding or unfolding. One end of each of the two tilt cord sets 9 is respectively tied to the two cord winding assemblies 100 and is turned over by the rotation of the two cord winding assemblies 100. The other ends of the two tilt cord sets 9 are fixed to the bottom rail 7 after passing through the two perforation 200 of the headrail 2 and connected to the plural slats 61 of the blind body 6, so that the plural slats 61 of the blind body 6 can be rotated by the two cord winding assemblies 100 and then exhibit a clockwise or counterclockwise flip motion state.
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Any of the rotating members 20 is a long hollow tube and forms an outer peripheral wall 201 and an inner peripheral wall 203. The rotating member 20 comprises a large-diameter end 21, a wire guide section 22, a small-diameter end 23, a guide sliding portion 25, and a guide slider 27. The two rotating members 20 are respectively pivoted at the first accommodating portion 11 and the second accommodating portion 13 of the base 10 by the large-diameter end 21 and the small-diameter end 23. The large-diameter end 21 of any rotating member 20 is set toward the third accommodating portion 15 of the base 10. The wire guide section 22 of the rotating member 20 is wrapped around the outer peripheral wall 201 and connected to the large-diameter end 21, so that the wire guide section 22 gradually converges from the large-diameter end 21 to the small-diameter end 23. The guide sliding portion 25 of any rotating member 20 is formed by being recessed from the outer peripheral wall 201 of the rotating member 20 toward the inner peripheral wall 203, and the guide sliding portion 25 is recessed along the long axis of the rotating member 20 and can communicate with the outside. The guide sliding portion 25 is recessed along the long axis of the rotating member 20 and can communicate with the outside. The guide slider 27 of any rotating member 20 is pivoted on the guide sliding portion 25, so that the guide slider 27 can be moved back and forth along the long axis of the rotating member 20. The tilt member 30 is a hollow wound flexible member and forms an outer peripheral wall 301 and an inner peripheral wall 302 opposite to the outer peripheral wall 301, so that the opposite two ends of the tilt member 30 respectively form a large-diameter end 31 and a small-diameter end 33, and are pivoted to the third accommodating portion 15 of the base 10 by the large-diameter end 31 and the small-diameter end 33. The large-diameter end 31 of the tilt member 30 has a semi-circular cord guide portion 311, two cord-tying portions 313 arranged at intervals, and a groove 312 recessed radially from the outer periphery of the cord guide portion 311 toward the inner peripheral wall 302. Any cord-tying portion 313 is composed of a connecting section 3131 connected to a limiting section 3133, so that a locking section 3135 is formed between the connecting section 3131 and the limiting section 3133. The outer periphery of the small-diameter end 33 of the tilt member 30 has two radially protruding and spaced retaining walls 333.
The above are the technical features of the two cord winding assemblies 100 and their respective components of the window blind 1 disclosed in the preferred embodiment of the present invention. In the follow-up, we will continue to reveal the operation mode of the two cord winding assemblies 100 set on the window blind 1 and the desired effect:
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In addition, any of the tilt cord sets 9 is composed of two tilt cords 91. Let the respective one ends of the two tilt cords 91 respectively pass through the tilt cord holes 151 of the third accommodating portions 15 of the bases 10. Then, each extends upwards along the groove 312 of the cord guide portion 311 of the large-diameter end 31 of the respective tilt member 30. Until the one ends of the two tilt cords 91 pass through the two cord-tying portions 313 of the large-diameter ends 31 of the tilt members 30 respectively, they are then tied to the locking section 3135 of the respective cord-tying portions 313. Then, let the other ends of the two tilt cords 91 of any one of the tilt cord sets 9 be respectively pierced with the cord holes 200 of the headrail 2 and connected to the two lift cords 81 of the respective lift cord set 8 by a plurality of connecting cords 93 respectively, and then fixed to the bottom rail 7. Preferably, connecting cords 93 are arranged at intervals between any tilt cord 91 and any lift cord 81. The connecting cord 93 of any tilt cord set 9 is close to the position of the slat fixing rope 83 of the lift cord set 8. In this way, by the technical feature of providing a plurality of connecting cords 93 between any one of the lift cord sets 8 and any one of the tilt cord sets 9, and the technical feature that the connecting cord 93 of any tilt cord set 9 is close to the position of the slat fixing rope 83 of the lift cord set 8, it will allow the blind body 6 to obtain a nearly synchronized and stable clockwise or counterclockwise flipping effect between any of the slats 61.
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