• 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:
    A coupling piece (100) for transmitting a rotational moment from a first shaft (410) to a second shaft (200) contains (100) a hollow disc (110). The hollow disc has a minimum of two fins (120) on the outside which are resilient in a direction of rotation about the axis of the hollow disc. At least one first fin (120) is intended to be closely mated with a first side of a protrusion (210) on the inside of the second shaft and at least one second fin (120) is intended to be closely mated to such protrusion (210), so as to transmit noiseless and vibration-free rotational moments in different directions to the second shaft (200).
    公开号:BE1021085B1
    申请号:E2014/5001
    申请日:2014-09-29
    公开日:2016-03-25
    发明作者:Dominique Lampe
    申请人:Shadow-lnside NV；Bvba Shadow Belgium；
    IPC主号:
    专利说明:

    Coupling piece for transferring a moment of rotation
    Field of application of the invention
    This invention generally relates to transmission systems of a moment of rotation from a first shaft, the drive shaft, to a second shaft. More specifically, it relates to transmission systems of a rotation moment wherein the first axis and the second axis are coaxial. Such a transfer system can be used in a retrieval direction for a sheet-like object, for example a curtain.
    BACKGROUND OF THE INVENTION
    Coupling pieces are used to transfer the moment of rotation from a first shaft to a shaft with a larger diameter. In the context of the present invention, the first axis and the axis being driven are coaxial.
    Existing connectors for transferring the moment of rotation from a first axis to a larger diameter axis consist of a toothed hollow disc with protrusions on the inside that fit into notches on the first axis to take over the rotation of the first axis, and on the outside teeth which fit between radially oriented ribs provided on the inner wall of the larger diameter shaft, so as to transfer the rotational moment of the first axis to the larger diameter axis (the second axis).
    Such coupling pieces are used, for example, to transfer the rotational moment from a first shaft to a winding tube. A winding tube can, for example, serve to retrieve a sheet-like object, such as for instance a curtain. Such a curtain can for instance be a roller blind or a roman blind. Venetian blind people are also possible.
    In some existing systems, the sheet-like object is rolled around the winding tube. In other existing systems, the sheet-like object is pulled up by means of pick-up ropes by winding the pick-up ropes around the winding tube. In some existing systems the first axle is a motor shaft, in other systems the first axle is driven manually.
    An example of a connector as used in existing curtain systems can be found in EP0969180. The coupling piece is pressed in EP0969180 on the first axis and secured in the second axis.
    By fixing the coupling piece with the second shaft, vibrations are avoided when driving that shaft. However, an axial shift of the second axis relative to the first axis is no longer possible.
    There is thus room for a more efficient system for transferring a moment of rotation from a first axis to a coaxial axis with a larger diameter.
    Summary of the invention
    It is an object of embodiments of the present invention to transfer the moment of rotation from a first axis to a second axis in a damped manner, the first axis and the second axis being mounted coaxially with respect to each other. The second axis can have a larger inner diameter than the outer diameter of the first axis.
    In a first aspect, the present invention provides a coupling piece for transmitting a moment of rotation from a first axis to a second axis coaxial with the first axis, the second axis having a larger inner diameter than the outer diameter of the first axis, and wherein the coupling piece includes a hollow disk, the inside of which is dimensioned to closely fit with the outside of the first shaft so that the first shaft can exert a rotational moment on the hollow disk when the coupling piece and the first shaft are attached to each other, and wherein the hollow disc on the outside contains at least two, preferably at least three, or more preferably at least four fins. The fins are preferably symmetrically distributed around the outside of the hollow disc. The fins are resilient in a direction of rotation about the axis of the hollow disc and at least a first fin is intended to closely connect with a first side of a protrusion on the inside of the second axis and at least a second fin is intended to closely to be closed with a second side of a protrusion on the inside of the second axis, wherein the connection of the first fin to the first side of a protrusion allows to transmit a moment of rotation to the second axis in one direction and the connection of the second fin against the second side of a protrusion allows to transmit a moment of rotation in the opposite direction to the second axis.
    It is an advantage of embodiments of the present invention that the vibrations that occur when the coupling piece transmits a moment of rotation from the first axis to the second axis are smaller in the presence of the resilient fins than when the moment of rotation is transmitted only by non-resilient teeth that connect with radially oriented ribs on the inside of the second axis. In existing systems, the play between teeth and ribs is a source of vibrations and noise pollution (click noises due to small shifts in the circumferential direction). However, such clearance between teeth and ribs is necessary to allow the coupling piece and the second shaft to be mounted on each other. It is an advantage of embodiments of the present invention that the resilient fins can connect seamlessly with the protrusions, for example ribs, on the second axis. Due to the resilience of the fins, mounting of the second shaft on the coupling piece remains possible. It is an advantage of embodiments of the present invention that the vibration in both directions of rotation is damped. When changing the direction of rotation, there is at least one fin that dampens the rotational movement in the other direction because there is at least one fin that connects to the second side of the corresponding protrusion. It is an advantage of embodiments of the present invention that the fins are rigidly connected to or integral with the hollow disk. This makes the mounting of the second shaft on the coupling piece easier since no additional parts can be mounted. The fact that the coupling piece does not consist of separate parts also offers a greater guarantee of correct assembly. It is an advantage of embodiments of the present invention that the coupling piece can be designed to drive various forms of shafts. As soon as at least one protrusion is present on the inside of the second axis, the fins of the coupling piece can be designed so that they fit seamlessly with the protrusion of the second axis when the coupling piece is slid into the second axis.
    In a coupling piece according to embodiments of the invention, a fin can be bent or angled in one of the two possible directions of rotation of the coupling piece.
    It is an advantage of embodiments of the present invention that the moment that can be transmitted through a vane to the second axis is greater than when this vane is straight in the radial direction of the coupling piece. It is an advantage of embodiments of the present invention that curved or angled fins can more easily assume a smaller radius by bending or bending them, making them easier to assemble than straight fins.
    In a connector according to embodiments of the present invention, the fins may be obliquely oriented at an angle to the radial direction of the connector and at least one fin may be oriented in a direction opposite to that of another fin.
    It is an advantage of embodiments of the present invention that the moment that can be transmitted by an oblique fin is greater than the moment that can be transmitted substantially by a fin in the radial direction.
    In a connector according to embodiments of the present invention, teeth may be provided on the outside of the hollow disc that are dimensioned to fit against radially oriented protrusions on the inside of the second axis. Teeth and fins may alternately be present on the outside of the hollow disc.
    It is an advantage of embodiments of the present invention that a larger moment can be transmitted by the coupling piece on the second axis than if the teeth were not present. After all, compared to the flexible fins, the teeth can transmit a greater moment of rotation.
    In a second aspect, the present invention provides for the use of a connector according to any one of the preceding claims for driving a winding tube for winding threads of a sheet-like object.
    The coupling piece can be used in a retrieval device for a sheet-like object, for example a curtain. The sheet-like object can be a smooth flat sheet, for example a piece of fabric, but is not limited thereto. It can also have another flexible, foldable or compactable structure, for example a slat curtain (with horizontal slats) or a drapery. It is an advantage of embodiments of the present invention that during winding the winding tube can move axially over the coupling piece. This allows a winding wire of the sheet-shaped object to be evenly wound around the winding tube. When the shift per revolution is equal to or greater than the thickness of the wire, it can be avoided that different turns of the wire are superimposed. It is an advantage of embodiments of the present invention that a shift in the axial direction is possible and at the same time vibration and noise are avoided by the coupling between the coupling piece and the second axis by means of flexible fins.
    Specific and preferred aspects of the invention are included in the appended independent and dependent claims. Features of the dependent claims can be combined with features of the independent claims and with features of other dependent claims as appropriate, and not only as explicitly stated in the claims.
    These and other aspects of the invention will be apparent from and elucidated with reference to the embodiment (s) described below.
    BRIEF DESCRIPTION OF THE FIGURES FIG. 1 shows a cross-section of a connector in accordance with embodiments of the present invention, intended to transfer the rotation of a first axis to a second axis. FIG. 2 shows a cross-section of a second shaft to be driven by a coupling piece in accordance with embodiments of the present invention. FIG. 3 shows a cross-section of a coupling piece mounted in a second axis in accordance with embodiments of the present invention. FIG. 4 shows a front view of a winding tube driven by a connector in accordance with embodiments of the present invention. FIG. 5 shows a photograph of a coupling piece mounted in a second axis in accordance with embodiments of the present invention.
    The figures are only schematic and non-limiting. In the figures, the dimensions of some parts may be exaggerated and not represented to scale for illustrative purposes.
    Reference numbers in the claims may not be interpreted to limit the scope of protection. In the various figures, the same reference numbers refer to the same or similar elements.
    Detailed description of illustrative embodiments
    The present invention will be described with reference to particular embodiments and with reference to certain drawings, however, the invention is not limited thereto but is only limited by the claims. The described drawings are only schematic and not restrictive. In the drawings, the dimensions of some elements may be increased for illustrative purposes and not drawn to scale. The dimensions and the relative dimensions sometimes do not correspond to the current practical embodiment of the invention.
    Furthermore, the terms first, second, third and the like in the description and in the claims are used to distinguish similar elements and not necessarily for describing a sequence, neither in time, nor spatially, nor in ranking, or in any other manner. It is to be understood that the terms used in this way are suitable under interchangeable conditions and that the embodiments of the invention described herein are capable of operating in a different order than described or depicted herein.
    In addition, the terms upper, lower, upper, for and the like in the description and the claims are used for description purposes and not necessarily to describe relative positions. It is to be understood that the terms so used may be interchanged under given circumstances and that the embodiments of the invention described herein are also suitable to operate in other orientations than described or shown herein.
    It is to be noted that the term "contains", as used in the claims, is not to be construed as being limited to the means described thereafter; this term does not exclude other elements or steps. It can therefore be interpreted as specifying the presence of the listed features, values, steps or components referred to, but does not exclude the presence or addition of one or more other features, values, steps or components, or groups thereof. Thus, the scope of the term "a device containing means A and B" should not be limited to devices that consist only of components A and B. It means that with regard to the present invention, A and B are the only relevant components of the device.
    Reference throughout this specification to "one embodiment" or "an embodiment" means that a specific feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the occurrence of the expressions "in one embodiment" or "in an embodiment" at various places throughout this specification need not necessarily refer to the same embodiment in each case, but it can do so. Furthermore, the specific features, structures, or characteristics may be combined in any suitable manner, as would be apparent to those skilled in the art based on this disclosure, in one or more embodiments.
    Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof for the purpose of streamlining disclosure and assisting in understanding one or several of the various inventive aspects. This method of disclosure should not be interpreted in any way as a reflection of an intention that the invention requires more features than explicitly mentioned in any claim. Rather, as the following claims reflect, inventive aspects lie in less than all the features of a single prior disclosed embodiment. Thus, the claims following the detailed description are hereby explicitly included in this detailed description, with each independent claim as a separate embodiment of the present invention.
    Furthermore, while some embodiments described herein include some, but not other, features included in other embodiments, combinations of features of different embodiments are intended to be within the scope of the invention, and constitute different embodiments, as would be understood by those skilled in the art . For example, in the following claims, any of the described embodiments can be used in any combination.
    Numerous specific details are set forth in the description provided here. It is, however, understood that embodiments of the invention can be practiced without these specific details. In other cases, well-known methods, structures and techniques have not been shown in detail to keep this description clear.
    Where in embodiments of the present invention the axis direction is referred to, the direction of the axis around which the hollow disk 110 can rotate is meant.
    Where in embodiments of the present invention reference is made to the inside of a vane 120, that end of the vane 120 is meant to attach the vane to the hollow disk 110.
    Where in embodiments of the present invention reference is made to the outside of a vane 120, the other end of the vane 120 is intended, opposite the inside. This is the side that connects with the rib 210 of the second shaft 200 and / or with the inside of the second shaft.
    In a first aspect, the present invention relates to a coupling piece 100 for transmitting a moment of rotation from a first axis 410 to a second axis 200. The first and the second axis are herein coaxially mounted and the outer diameter of the first axis is smaller than the inner diameter. from the second axis. In embodiments of the present invention, the coupling piece 100 comprises a hollow disk 110. The inside of the hollow disk 110 is such that it can be slid / pressed over the first axis 410. For this purpose, the inside of the hollow disc 110 and the outside of the first shaft 410 can be provided with a corresponding and mutually fitting relief, for example protrusions and corresponding notches. The outside of the first shaft 410 may, for example, be provided with grooves, and the inside of the hollow disk 110 may be provided with corresponding ribs 140, or vice versa, the ribs and grooves being positioned such that both pieces fit together. A combination of ribs and grooves in each of the pieces is also possible, but allows fewer positions in which the first shaft 410 and the coupling piece 100 can be slid over each other.
    The pieces are designed such that, after assembly, there is a close connection between the first shaft 410 and the hollow disk 110. The close connection between the first shaft 410 and the hollow disk 110 allows the first shaft 410 to exert a rotational moment on the hollow disk 110. In the embodiments of the present invention illustrated in FIG. 1, the inside of the hollow disc 110 contains four ribs as protrusions. These protrusions fit into grooves provided as notches in the first axis 410. Not illustrated, but it is also possible to provide notches, e.g. grooves, inside the hollow disc 110 and protrusions, e.g. ribs, on the outer wall of the first axis 410. Via the notches / protrusions on the first axis and the protrusions / notches on the inside of the hollow disc, the moment of the first axis can be transferred to the coupling piece 100. As used in a sheet-like object retrieval system, the coupling piece 100 after assembly should not be able to slide over the first axis 410, the inside of the coupling piece 100 can be made close to the first axis 410. The dimensions must be chosen such that it is still possible for the coupling piece 100 to be mounted on the first axis 410 is pressed during assembly. On the other hand, the play is so small that no vibrations occur during the transmission of a moment of rotation from the first shaft 410 to the coupling piece 100.
    In embodiments of the present invention, teeth 130 are provided on the outside of the hollow disk 110. After assembly of the coupling piece 100 within a second shaft 200, these teeth 130 bridge the distance between the outer diameter of the hollow disc 110 and the inner diameter of the second shaft 200. When the coupling piece 100 is slid into the second shaft 200, at least some close faces of these teeth 130 with corresponding protrusions 210, for example ribs, on the inside of the second shaft 200.
    In embodiments of the present invention, on the outside of the coupling piece 100, between at least two of the teeth 130, there are also fins 120 whose surface is parallel to the axis direction of the second shaft 200. The fins 120 are attached on one side to the hollow disc 110. The opposite side is parallel to the axis of the hollow disc 110 but is located in a non-assembled state at a distance from that axis that is greater than the distance existing in the assembled state between the outside of the hollow disc 110 and the inside of the second shaft 200. The fins are flexible in the sense that they can be slightly bent to, despite their length being larger than the distance to be bridged between the outside of the hollow disc 100 and the inside of the second shaft 200 to fit between these two walls. The fins 120 thus form a curved, for example, but not limited to, circular cross-section.
    When the coupling piece 100 is slid into the second axis 200, the outside sides of the fins 120 connect with the inside of the second axis 200. On the inside of the second axis 200 there are protrusions 210, for example ribs, parallel to the axis direction. These protrusions 210 are positioned so as to connect with the fins 120. Each of the protrusions 210 has a first side and a second opposite side via which by driving the first shaft 410 and transferring the rotational movement to the coupling piece 100 a rotation moment can be applied to the second axis 200. The direction of the rotation moment can be in a first direction (clockwise) or in a second direction (counterclockwise). In embodiments of the present invention, at least one fin 120 connects to the first side, e.g., the left side, of a protrusion and connects at least one (other) fin 120 to the second side, e.g., the right side, of a protrusion. In the case of clockwise rotation at least one fin pushes against the first side of a protrusion, in the case of rotation counterclockwise at least one fin pushes against a second side of a protrusion. FIG. 1 shows the cross-section of a possible coupling piece 100 in accordance with embodiments of the present invention. A hollow disk 110 can be seen in the figure. Four protrusions 140 are provided on the inside of this hollow disc, but the invention is not limited thereto. There may also be fewer or more protrusions; at least one. These protrusions are positioned in such a way that their location corresponds to notches on a first axis. The number of notches in the outer wall of the first axis can be greater than the number of protrusions 140 on the inside of the hollow disc 110, but should be at least as large. Via these protrusions 140 and notches, the moment of the first axis can be transferred to the coupling piece 100. The smaller the play between protrusions 140 on the inside of the hollow disc 110 and notches in the outer wall of the first shaft 410, the more difficult the coupling piece 100 can be pushed or even pressed over the first shaft 410. It is an advantage of embodiments of the present invention that, due to the small clearance between coupling piece 100 and first shaft 410, no vibrations arise when transmitting a moment of rotation from the first shaft 410 to the hollow disk 110. Since it is not necessary that, during normal operation, the coupling piece 100 can move in the longitudinal direction over the first axis 410, it is no problem that the coupling piece 100 must be pressed on the first axis 410 during assembly.
    In embodiments of the present invention, it is, however, an advantage that the second shaft 200 can slide in the longitudinal direction over the coupling piece 100, because this offers advantages in winding the pull-up rope of retractable roman blinds, as described in BE2013 / 0038. To make this possible and at the same time to avoid vibrations, the signals shown in FIG. In the embodiment of the present invention, on the outside of the hollow disc 110, four fins 120 are arranged which are parallel to the axis direction of the second axis 200. These fins are resilient in the direction of rotation about the axis of the hollow disc 110.
    In embodiments of the present invention, the coupling piece 100 can be slid into a second shaft 200 with each fin 120 connecting with the inside of the second shaft 200 and with a protrusion 210, for example a rib. An example of a second shaft 200 that includes different protrusions 210, for example, ribs, is illustrated in FIG. 2. FIG. 3 shows a cross section of a coupling piece 100 mounted in a second shaft 200 in accordance with embodiments of the present invention. Because the fins 120 are flexible, the second shaft 200 can be slid over the coupling piece 100 even when there is no play between the fins 120 and one side of the corresponding ribs 210 and between the fins 120 and the inner wall of the second shaft 200.
    In the embodiment shown in FIG. 1 and FIG. The proposed embodiment of the present invention includes teeth 130 on the outside of the hollow disk 110. These teeth 130, just like the fins 120, bridge the distance between the outer diameter of the hollow disc 110 and the inner diameter of the second shaft 200. Unlike the fins, these teeth are wider in the direction of rotation, making them much less flexible than the fins, or even not flexible at all. The teeth 130 provide firmness to the structure. When the coupling piece 100 is slid into the second shaft 200, these teeth 130 connect with corresponding ribs 210 on the inside of the second shaft 200, with a predetermined clearance. This play is greater than the play for the flexible fins 120. The play allows the second shaft to be slid over the coupling piece with a lower friction, and therefore easier than if there were no play at all between the teeth 130 and the second shaft 200 and / or the protrusions 210 on the second axis 200. It is an advantage of embodiments of the present invention that the teeth 130, due to their firmness, can transmit a greater moment of rotation on the second axis than the resilient fins 120. In embodiments of In the present invention, in which the coupling piece 100 comprises both teeth 130 and fins 120, the fins ensure that the vibrations are damped during the application of a moment of rotation (for example during acceleration or when changing direction of rotation). The fins 120 also ensure that during the execution of a rotational movement a clicking noise is avoided, which is otherwise caused by the required play between teeth 130 and protrusions 210 allowing a slight shift in rotation direction of coupling piece 100 and second axis 200 relative to each other, whereby a protrusion 210 of the second shaft 200 in each case "falls" against a tooth 130 of the coupling piece 100. Due to the flexibility of the fins 120, together with their appropriate dimensioning greater than the distance to be bridged between the outside of the hollow disc 110 and the inside of the second axis, these fins 120 closely connect with the projections 210 of the second axis 200 When the first shaft 410 exerts a rotational moment on the second shaft 200 via the coupling piece 100, the fins 120 will in the first place drive the second shaft, for example accelerate. The fins 120 will already drive the second shaft, for example accelerate, even before the teeth 130 of the coupling piece 100 touch the ribs 210 of the second shaft. This mutes both the vibrations and the sounds. In embodiments of the present invention in which teeth 130 are present on the coupling piece 100, it is possible to exert a greater moment of rotation on the second shaft 200 than in embodiments in which only resilient fins 120 would be present, due to the strength of the teeth 130. In embodiments of the present invention, it is fins 120 that dampen vibrations and sounds. The teeth 130, in turn, permit a transfer of a larger moment. If the teeth 130 are not present, the fins 120 will bend completely with increasing moment, and possibly skip or even break off. In embodiments of the present invention, after assembly of the second shaft 200 on the connector 100, there is still a clearance between teeth 130 and ribs 210, but not between fins 120 and ribs 210. FIG. 5 shows a photograph of a connector 100 slid into a second axis 200. The first axis 410 is shown in FIG. 5 not visible. The fins 120 connect with ribs 210. The teeth 130 also connect with ribs 210. On the inside of the hollow disc 110 there are protrusions 140 which correspond in location and dimensions to notches on the first axis 410 (not shown) and via which the moment of rotation of the first shaft 410 can be transmitted to the coupling piece 100. In embodiments of the present invention, notches may also be provided on the inside of the hollow disc, instead of or together with the protrusions corresponding to protrusions on the first axis.
    In embodiments of the present invention, each fin 120 is bent in a direction of rotation about the axis of the hollow disc. Different fins 120 can be bent in different directions of rotation.
    An example of this is shown in FIG. 1. In this example, the bend of the fin is at a certain distance, for example 1/3, from the outside of the hollow disc and this in radial direction. In the example of FIG. 1, the fins 120 are alternately, without the invention being limited thereto, bent in one direction or the other. As a result, the coupling piece 100 can transmit a moment in both directions of rotation to the second shaft 200 via projections 210 present on the inside of that second shaft. In embodiments of the present invention, at least one vane 120 is bent in a direction opposite to that of another vane 120. When mounted in the second axis, this vane 120 connects to the second side of the corresponding rib 210 as the other vane to the first side of its corresponding rib. This allows the fin 120 that connects to the second side of the corresponding rib to transmit the torque in the other direction.
    In embodiments of the present invention, a vane 120 forms an angle with a plane that includes the axis of rotation of the hollow disk 110 and that includes the connecting rib between the vane 120 and the hollow disk 110. The fins 120 can form an angle with the radial direction and moreover can be bent in a direction of rotation.
    In embodiments of the present invention, the outside of a fin 210 is thickened in the axial direction. Such a thickening can be gradual, with the thickening rising from the point of attachment of the fin to the hollow disc 110 to the free end. In alternative embodiments, the thickening may be implemented by a thicker piece disposed at the free end. Due to this thickening a good connection of the fin 120 and the second shaft 200 is possible. This allows the fin 120 to connect both with the inside of the second axis and with a rib. FIG. 5 shows a fin 120 with a bulge on the outside thereof.
    In embodiments of the present invention, the first shaft 410 is a shaft driven or driven by a motor. The first axis can be a motor axis. In alternative embodiments, the first axle can be a manually driven or driven axle.
    In a second aspect, the present invention relates to the use of a coupling piece 100 for driving a second shaft 200, said second shaft being a winding tube. The winding tube can, for example, serve for winding wires from a roman blind. An example of this is shown in FIG. 4. This figure shows a front view of a winding tube 200 driven by a first shaft 410 via a coupling piece 100 according to embodiments of the first aspect of the present invention.
    In the embodiment of the present invention illustrated in FIG. 4, during use, namely during the winding of wires of a roman blind, during 1 rotation of the winding tube 200, the winding tube 200 moves over a distance that is at least the thickness of the wire to the left. As a result of this shift, the wire 420 is wound onto the winding tube without overlapping. Such a method of winding the wire around a winding tube, wherein the loops of the wire are arranged neatly next to each other and not criss-cross over each other, is described in BE 2013/0038. Such a method of winding up the wire around the winding tube guarantees a perfect winding and unwinding of the curtain, without the risk of warping. It is an advantage of embodiments of the present invention that the coupling piece 100 permits rotation of the winding tube in combination with an axial shift of the winding tube.
    The various aspects can be easily combined with each other, and the combinations thus also correspond to embodiments according to the present invention.
    权利要求:
    Claims (4)
    [1]
    Conclusions
    1, - A coupling piece (100) for transferring a moment of rotation from a first axis (410) to a second axis (200), coaxial with the first axis (410), the second axis having a larger inner diameter than the outer diameter of the first axis, and wherein the coupling piece (100) comprises a hollow disc (110), the inside of which is dimensioned to closely match the outside of the first axis (410) so that the first axis can exert a rotational moment on the hollow disk (110) when the coupling piece (100) and the first shaft (410) are attached to each other, and wherein the hollow disk on the outside contains at least two fins (120), the fins (120) being resilient in a direction of rotation about the axis of the hollow disc (110) and wherein at least a first fin (120) is intended to closely connect with a first side of a protrusion (210) on the inside of the second axis and wherein at least a second fin (120) ) is intended to fit closely with a second side of a protrusion (210) on the inside of the second axis, the connection of the first fin (120) against the first side of a protrusion (210) allowing to transmit a one-way rotation torque to the second axis (200) ) and wherein connecting the second fin (120) against the second side of a protrusion (210) allows to transmit a torque in the opposite direction to the second axis (200) with the first fin bent or angled in the one direction and with the second fin bent or angled in the opposite direction.
    [2]
    A coupling piece (100) according to claim 1, wherein the fins (120) are inclined at an angle to the radial direction of the coupling piece (100) and wherein at least one fin (120) is oriented in a direction opposite to that from another fin (120).
    [3]
    3. A coupling piece (100) according to any one of the preceding claims, wherein on the outside of the hollow disc (110) teeth (130) are present which are dimensioned to fit against radially oriented protrusions (210) on the inside of the second axis (200) and wherein the teeth and fins (120) are alternately present on the outside of the hollow disc (110).
    [4]
    Use of a coupling piece (100) according to any one of the preceding claims for driving a winding tube for winding wires (420) of a sheet-like object.
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    EP0969180A2|1998-07-03|2000-01-05|GAPOSA S.r.l.|Tubular motor reducer for winding roller shutters and sunblinds integrated with anti-fall device|
    EP2246517A1|2009-04-30|2010-11-03|Somfy SAS|Viscoelastic transmission device of a roller shutter actuator|
    EP2538015A1|2011-06-20|2012-12-26|Nice Spa|Elastic claw coupling for a tubular drive for a roller shutter|
    法律状态:
    2020-08-26| PD| Change of ownership|Owner name: INSIDE BLINDS NV; BE Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), FUSION; FORMER OWNER NAME: SHADOW-LNSIDE NV Effective date: 20200629 |
    优先权:
    申请号 | 申请日 | 专利标题
    BE201400571|2014-07-23|
    BE2014/0571|2014-07-23|
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