• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An architectural covering having a drive mechanism for extending and retracting a covering member (108) between opposite first and second end positions. The drive mechanism includes an electric motor unit (31) having a stationary end (33) and a rotating end (35) for rotating a winding core, such as a roller blind shaft (106), for receiving wound layers of a flexible element, such as a sheet of flexible material (108) thereon. The drive mechanism further includes a motor head (1), separate from the electric motor unit (31), providing external electrical control for the motor unit (31) via an electrical interface. A printed circuit board (19) accommodated in the motor head (1) may include at least one of end position limit switches, a switch for setting the first and second end positions, electronic communication means, or a remote control receiver. The electrical interface may include an electrical connector plug (17; 17A), an electrical socket (37; 37A), and/or an electrical cable (55; 75).
    公开号:AU2013226612A1
    申请号:U2013226612
    申请日:2013-02-27
    公开日:2014-09-18
    发明作者:Jorg Bohlen；Lars Koop
    申请人:Hunter Douglas Industries BV；
    IPC主号:E06B9-72
    专利说明:
    WO 2013/129916 PCT/NL2013/000009 ARCHITECTURAL COVERING HAVING A DRIVE MECHANISM The invention relates to an architectural covering having a drive mechanism for extending and retracting a covering member between opposite first and second end positions. It is known for such a drive mechanism to include an electric motor 5 unit that has a stationary end and a rotating end. The rotating end being arranged for rotating a winding core for receiving wound layers of a flexible element. It has further been proposed for such a drive mechanism to also include a spring assist module for compensating the masses of the architectural covering between its opposite first and second end positions. 10 In a known architectural covering, as disclosed in applicant's international patent application published as WO 2010/089118, the spring assist module is required to be positioned at an outer end of the roller tube because its stationary central shaft requires a fixed connection to one of the mounting brackets. As a consequence the motor unit is arranged at an inward 15 end of the spring assist module and is difficult to reach for adjustment or control. It would for instance be desirable when adjusting the end position limits, that it would not be necessary to disassemble the spring assist and motor units from the roller blind to enable such adjustments. Accordingly it is an object of the present invention to propose an 20 improved drive mechanism for an extendable and retractable covering member of an architectural covering. In a more general sense it is thus an object of the invention to overcome or ameliorate at least one of the disadvantages of the prior art. It is also an object of the present invention to provide alternative structures which are less cumbersome in assembly and operation and which 25 moreover can be made relatively inexpensively. Alternatively it is an object of the invention to at least provide the public with a useful choice.
    WO 2013/129916 PCT/NL2013/000009 2 To this end the invention provides an architectural covering having a drive mechanism for extending and retracting a covering member between opposite first and second end positions as defined in one or more of the appended claims. By housing the communication electronics, such as setting of 5 first and second end positions and/or a remote control receiver, in a separate motor head it has become possible to access the appropriate controls without any disassembling. This has been enabled while retaining a fixed attachment for the spring assist module in the proximity of an outside end of a winding core, such as a blind roller. Mechanical changes to an electric motor unit that 10 typically has a driving end and a stationary end are thereby also avoided. This keeps manufacturing costs low as standardized mass produced motor units can be employed as before. Further advantageous aspects of the invention will become clear from the appended description and in reference to the accompanying drawings, 15 in which: Figure 1 is an isometric view of a motor head for use in a mechanism for extending and retracting an architectural covering; Figure 2 is an exploded isometric view of the motor head of Figure 1; Figure 3 shows s motor unit and the motor head in an exploded 20 arrangement; Figure 4 shows the individual elements of Figure 3 in an assembled condition; Figure 5 shows the motor unit and motor head with a spring assist module interposed there between in an exploded arrangement; 25 Figure 6 shows the spring assist module of Figure 5; Figure 7 shows the spring assist module of Figure 5 in an exploded arrangement; Figure 8 is an exploded arrangement similar to Figure 5 but now with additional buffer couplings interposed at opposite ends of the spring 30 assist module; WO 2013/129916 PCT/NL2013/000009 3 Figure 9 is an isometric view of the buffer coupling of Figure 8; Figure 10 is an exploded view of the buffer coupling of Figure 9; and Figure 11 shows a roller shade including the mechanism for extending and retracting in accordance with the present invention. 5 A motor head 1 for a drive mechanism of an architectural covering, such as roller shade 100 in Figure 11, is shown in Figure 1. The motor head 1 has a housing 3, an outer end member 5, and an inner end member 7. The outer end member 5 has coupling features 9 for engaging a mounting bracket, such as mounting brackets 102, 104 of Figure 11. Further the outer end 10 member 5 is provided with an entrance opening 11 for electrical wires 13. Journalled for rotation between the outer end member 5 and the housing 3 is a rotatable collar 15. Protruding from the inner end member 7 is an electrical connector plug 17. As illustrated in the exploded view of Figure 2 the electrical wires 13 connect to a printed circuit board (PCB) 19, which in turn connects to 15 the connector plug 17. The printed circuit board (19) is accommodated in the housing 3 of the motor head 1, and may include at least a selection of end position limit switches, a switch for setting the first and second end positions, electronic communication means, and/or a remote control receiver. Such devices are conventionally accommodated in the same unit that also houses an 20 electric motor unit. According to the invention the motor head 1 does not include an electric motor unit, but merely provides external electrical control for such an electric motor unit. Hence the motor head 1 provides for an electrical interface with an electric motor unit that enables control of motor end positions and/or remote communication. 25 The rotatable collar 15 is journalled for rotation about stationary stub axle 21, via bearing ring 23. The stationary stub axle 21 is stationary held to the outer end member 5 by appropriate complementary mating formations 21A, 21B. The housing 3 accommodates the printed circuit board 19 and is stationery affixed to the stub axle 21 by means of a screw 25 and a nut 27. 30 Upon assembly of the motor head 1, the inner end plug 7 also connects to the WO 2013/129916 PCT/NL2013/000009 4 stationary housing 3 through mating ribs and serrations. Further the inner end plug 7 is provided with a coupling protrusion 29 for a stationary central shaft, as will be explained herein below. Motor head 1 is shown in Figure 3 in an exploded arrangement with 5 an electric motor unit 31. The electric motor unit 31 has a stationary end 33 and a rotatable driving end 35. Protruding from the stationary end 33 is an electrical connector socket 37 that is connectable directly, or indirectly, to the connector plug 17. The driving end 35 is provided with external ribs 35A to engage mating formations of an inner wall of a winding core, such as blind 10 roller 106 shown in Figure 11. For clarity no winding core or blind roller is shown in Figure 3, but such elements are conventional and well known to the skilled person. Similarly the rotatable collar 15 is also provided with ribs 15A for engaging mating formations on a surrounding winding core. To prevent the stationary end 33 of the motor unit 31 from sagging against the interior of a 15 rotating winding core, an optional bearing collar clip 39 may be mounted in the vicinity of the stationary end 33 of the motor unit 31. The outer circumference of the bearing collar clip 39 may be provided with protrusions 39A for engaging the interior wall of a winding core similar to the ribs 15A and the ribs 35A. In one arrangement optionally to the invention as shown in Figure 4 20 the motor head 1 may be directly coupled to the electric motor unit 31. The bearing collar clip 39 may then be clipped around the connection between the motor unit 31 and the motor head 1. In Figure 5 another optional arrangement of the motor head 1 and motor unit 31 is shown. In the arrangement of Figure 5 a spring assist module 25 41 is interposed between the motor head 1 and the motor unit 31. This spring assist unit is generally similar to the units described in applicant's published international patent application WO 2010/089118. For the present description it will therefore be sufficient to briefly describe the components that form the spring assist unit 41. A helically wound torsion spring 43 at one end engages a 30 first plug member 45 that in turn can drivingly engage a winding core (such as WO 2013/129916 PCT/NL2013/000009 5 blind roller 106 in Figure 11). The first plug member 45 is rotatably journalled about a stationary central shaft 49. Another end of the helically wound torsion spring 43 engages a second plug member 47, which is designed to allow free rotation with respect thereto of a surrounding winding core. However that 5 second plug member 47 non-rotatably engages splines on the stationary central shaft 49. The stationary central shaft 49 is hollow, so that electrical conduits may extend through its center. Rotatably surrounding the stationary shaft 49 adjacent to the second plug member 47, is a bearing web 51 that is designed to engage an inside of a surrounding winding core, when present. At 10 the opposite end of the spring assist module 41 and beyond the first plug member 45, a shaft coupling 53 is non-rotatably fitted to the stationary shaft 49. At the same end it is seen that electrical connector sockets 37A extend from the shaft coupling 53 to connect to the connector plug 17 of the motor head 1. A connector plug 17A extends from the stationary shaft 49 at an opposite end of 15 the spring assist module 41 for coupling to the connector sockets 37 of the motor unit 31. As shown in more detail in Figures 6 and 7 the spring assist module 41 has an electric cable 55 extending through the hollow interior of the splined stationary shaft 49. One end of the cable 55 is provided with the connector 20 sockets 37A, while the other end of cable 55 is provided with the connector plug 17A. It will be clear to the skilled person that it would also be possible to form the electrical conduit integrally within the hollow interior of the stationary shaft 49. Similarly the electrical connector plugs and sockets may also be integrated with the ends of the stationary shaft 49. The shaft coupling 25 53 may be fixedly clamped to the stationary shaft 49 by a first set screw 59 engaging a nut 59A in the shaft coupling 53. The shaft coupling 53 may also be clamped to the coupling protrusion 29 of the inner end member 7 of the motor head 1 by a second set screw 61, engaging a corresponding nut 61A in the shaft coupling 53. In a still further elaborated optional arrangement, illustrated in 30 Figure 8, additional buffer coupling 63 are interposed at each opposite end of WO 2013/129916 PCT/NL2013/000009 6 the spring assist module 41. One of the buffer couplings 63 may be an integral part of the electric motor unit 31 and thus may form the stationary end (such as 33 in Figures 3, 4 and 5) attached to an electric motor 65. The motor head 1 is merely schematically represented in Figure 8, but may be similar in shape 5 to the motor head shown in the other Figures. The buffer coupling 63 is shown in more detail in Figures 9 and 10. The buffer coupling 63 includes a first connector 67 that can non-rotatably engage the splined stationary central shaft 49 and be clamped thereto by a set screw 69 that engages a nut 69A positioned in a cavity of the first connector 67. A second connector 71 is 10 adapted to non-rotatably engage either one of the electric motor 65, or the exposed end 57 of the shaft coupling 53. Suitable formations on confronting faces of the first and second connectors 67, 71 engage complementary formation of a resilient block member 73, interposed between these confronting faces. The resilient block member 73 can conveniently be a rubber part or some 15 other resilient configuration. Again all of the first connector 67, the resilient block member 73, and the second connector 71 have a central through bore to allow an electrical connecting cable 75 to extend there through. The addition of buffer couplings 63 assists in absorbing torque changes and start and stop impacts of the motor unit 31 and spring assist module 41 that would otherwise 20 be transmitted to the motor head 1. Figure 11 shows one type of architectural covering in which the extending and retraction mechanism of the present invention may be employed. This architectural covering is in the form of a roller blind 100 that has a blind roller 106 that is mounted for rotation between opposite first and 25 second mounting brackets 102, 104. A flexible screening material such as a shade cloth 108 is windable to and from the blind roller 106 to be extended within or be retracted from an architectural opening (not shown in Figure 11, but conventional). To assist in unwinding the shade cloth 108 from the roller 106 a weight bar 110 is attached to the bottom of the shade cloth 108. The 30 extension and retraction mechanism according to the various embodiments WO 2013/129916 PCT/NL2013/000009 7 described herein above may be entirely accommodated with the hollow interior of the blind roller 106, which acts as a winding core for a flexible element in the form of shade cloth 108. The motor head 1 of the various embodiments will have its outer end member 5 non-rotatably engaged by one of the mounting 5 brackets 102 or 104. The electrical wires 13 extending from the outer end member 5 can thereby easily connect to a power source or electrical switchgear. Alternatively or additionally mechanical switches or optical eyes provided in the motor head can be positioned within reach of an external tool or operation device. 10 Accordingly a mechanism is disclosed for extending and retracting an architectural covering member 108 between opposite first and second end positions. The mechanism includes an electric motor unit 31 having a stationary end 33 and a rotating end 35 for rotating a winding core, such as a roller blind shaft 106, for receiving wound layers of a flexible element, such as 15 a sheet of flexible material 108 thereon, and a spring assist module 41. The mechanism further includes a motor head 1, separate from the electric motor unit 31, providing external electrical control for the motor unit 31 and an electrical interface between the motor head 1 and the motor unit 31. A printed circuit board 19 accommodated in the motor head 1 may include at least one of 20 end position limit switches, a switch for setting the first and second end positions, electronic communication means, or a remote control receiver. The electrical interface may include an electrical connector plug 17; 17A, an electrical socket 37; 37A, and/or an electrical cable 55; 75. The spring assist module 41 may include a helically wound torsion 25 spring 43 that is selected from a predefined range of incremental lengths to best ensure a constant operating force. This can be achieved by taking into account the relevant physical parameters of the architectural covering and the mechanism for extending and retracting, as described in applicant's published international patent application WO 2010/089118.
    WO 2013/129916 PCT/NL2013/000009 8 It is also clear from the foregoing description that the spring assist module 41 and buffer coupling 63 may constitute a modular kit of self contained parts that each may selectively be combined individually with the motor unit 31 and motor head 1 in any number between zero and two. 5 It is thus believed that the operation and construction of the present invention will be apparent from the foregoing description. To the skilled person in this field of the art it will be clear that the invention is not limited to the embodiments represented and described here, but that within the framework of the appended claims a large number of variants are possible. Also kinematic 10 inversions are considered inherently disclosed and to be within the scope of the present invention. The terms comprising and including when used in this description or the appended claims should not be construed in an exclusive or exhaustive sense but rather in an inclusive sense. Expressions such as: "means for ..." should be read as: "component configured for ..." or "member constructed 15 to ..." and should be construed to include equivalents for the structures disclosed. The use of expressions like: "critical", "preferred", "especially preferred" etc. is not intended to limit the invention. In this regard, the terms in the foregoing description and the appended claims, such as "upper", "lower", "right", and "left", have been used only as relative terms to describe the 20 relationships of the various elements. Features which are not specifically or explicitly described or claimed may be additionally included in the structure according to the present invention without deviating from its scope. 25
    权利要求:
    Claims (21)
    [1] 1. Architectural covering having a drive mechanism for extending and retracting a covering member between opposite first and second end positions, and a winding core for receiving wound layers of a flexible element during extending and retracting of the covering member, wherein the drive 5 mechanism includes: an electric motor unit having a stationary end and a rotating end for rotating the winding core; and a motor head for providing electrical control to the motor unit, wherein the motor head is separate from the electric motor unit and coupled 10 thereto via an electrical interface.
    [2] 2. Architectural covering according to claim 1, wherein the drive mechanism is accommodated in the winding core. 15
    [3] 3. Architectural covering according to claim 1 or 2, wherein the drive mechanism is accommodated in a rail or cassette of the architectural covering.
    [4] 4. Architectural covering according to claim 2 or 3 respectively, wherein the motor head is positioned immediately adjacent one end of the 20 winding core or adjacent one end of the rail or cassette respectively.
    [5] 5. Architectural covering according to any one of the preceding claims, wherein the motor head comprises a printed circuit board with end position limit switches. 25 WO 2013/129916 PCT/NL2013/000009 10
    [6] 6. Architectural covering according to any one of the preceding claims, wherein the motor head comprises a switch for setting the first and second end positions. 5
    [7] 7. Architectural covering according to any one of the preceding claims, wherein the motor head comprises electronic communication means.
    [8] 8. Architectural covering according to any one of the preceding claims, wherein the motor head comprises a remote control receiver. 10
    [9] 9. Architectural covering according to any one of the preceding claims, wherein the electrical interface includes an electrical connector plug and an electrical socket. 15
    [10] 10. Architectural covering according to any one of the preceding claims, wherein the electrical interface includes a cable.
    [11] 11. Architectural covering according to any one of the preceding claims, wherein the drive mechanism comprises at least one spring assist module. 20
    [12] 12. Architectural covering according to claim 11, wherein the at least one spring assist module is interposed between the motor unit and the motor head. 25
    [13] 13. Architectural covering according to claim 11 or 12, wherein the at least one spring assist module includes a helically wound torsion spring that is selected from a predefined range of incremental lengths.
    [14] 14. Architectural covering according to any one of claims 11 to 13, 30 wherein the at least one spring assist module includes a helically wound WO 2013/129916 PCT/NL2013/000009 11 torsion spring that is selected according to a protocol that takes into account the relevant physical parameters of the architectural covering and the drive mechanism to best ensure a constant operating force. 5
    [15] 15. Architectural covering according to claim 10 and any one of claims 11 to 14, wherein the cable extends through the at least one spring assist module.
    [16] 16. Architectural covering according to any one of the preceding claims, 10 wherein the drive mechanism comprises at least one buffer coupling.
    [17] 17. Architectural covering according to claim 16 and any one of claims 11-15, wherein the at least one buffer coupling is interposed between the motor unit and the motor head, and/or between the motor unit and a spring assist 15 module, and/or between a spring assist module and the motor head, and/or between two spring assist modules.
    [18] 18. Architectural covering according to any one of the preceding claims, wherein the drive mechanism includes a bearing collar that can be clipped 20 onto the motor unit for additional support of the stationary end thereof.
    [19] 19. Architectural covering according to any one of the preceding claims, wherein the drive mechanism comprises a stationary central shaft. 25
    [20] 20. Architectural covering according to any one of the preceding claims, wherein the flexible element is a sheet of flexible material.
    [21] 21. Architectural covering according to anyone of the preceding claims, wherein the winding core is a roller blind shaft. 30
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    同族专利:
    公开号 | 公开日
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    WO2013129916A1|2013-09-06|
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    US9834986B2|2017-12-05|
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    法律状态:
    2017-09-28| FGA| Letters patent sealed or granted (standard patent)|
    优先权:
    申请号 | 申请日 | 专利标题
    NL1039407A|NL1039407C2|2012-02-27|2012-02-27|Architectural covering having a drive mechanism for extending and retracting a covering member between opposite first and second end positions.|
    NL1039407||2012-02-27||
    PCT/NL2013/000009|WO2013129916A1|2012-02-27|2013-02-27|Architectural covering having a drive mechanism|
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