• 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:
    Device for locking and unlocking a winding mechanism for a mosquito net and a roller shutter drawer that includes said device. Device for locking and unlocking a winding mechanism for a mosquito net capable of being installed in a drawer of a roller shutter, characterized by the fact that it includes a rotary axis capable of being mounted in an inner drawer of said roller blind, being said rotary axis capable of accumulating, in an active position, potential energy capable of being transmitted to a tubular support element of said mosquito net, a locking and unlocking body provided with means for retaining the rotational movement of said rotary axis when this axis is in the aforementioned active position, and means for jointly connecting the locking and unlocking body with said tubular support element of the mosquito net. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2757978A1
    申请号:ES201831048
    申请日:2018-10-30
    公开日:2020-04-30
    发明作者:Canicio José Luis Lopez；Perez Miriam Ponce
    申请人:Viuda De Rafael Estevan Gimenez S L；
    IPC主号:
    专利说明:

    [0001]
    [0002] LOCKING AND UNLOCKING DEVICE OF A WINDING MECHANISM
    [0003]
    [0004] The present invention relates to a device for locking and unlocking a winding mechanism for a mosquito net, also adaptable, for example, to a roller blind or a roller shutter. It also refers to a roller shutter drawer comprising said device for locking and unlocking a winding mechanism for a mosquito net.
    [0005]
    [0006] Background of the Invention
    [0007]
    [0008] Devices for locking and unlocking a winding mechanism for mosquito nets that are arranged inside a tubular element are known in the state of the art. These devices are arranged at one end of the tubular element and are attached to a torsion spring which is the one that allows the potential energy to accumulate. The procedure for accumulating potential energy in the torsion spring is carried out by a user holding the tubular element with the rolled-up mosquito net and applying, for example, a rotary movement to said device, so that the torsion spring compresses accumulating potential energy . The energy accumulated in the spring allows a return tension to be provided to the mosquito net during winding and unwinding, so that it remains firm and taut throughout the entire route that the mosquito net must cover. This type of device has the drawback that the accumulated potential energy can be easily released during the assembly of the mosquito net in a drawer for blinds. Furthermore, the aforementioned devices have the drawback that once they are assembled, subsequent maintenance operations must be carried out with a device with accumulated potential energy.
    [0009]
    [0010] Devices are also known that have locking and unlocking an energy accumulation device that are mounted fixed in the vicinity of a window and that can regulate the accumulation of potential energy in a torsion spring. An example of such a device is the one described in document ES2329842 in which a device for adjusting the accumulation of potential energy of the spring is attached to one end of the tubular element and comprises a mechanism inside which allows adjust the accumulation of potential energy in the torsion spring and block the possible accidental release of this energy. This type of locking device has the drawback that it is mounted fixed to the tubular element, so that the accumulation of energy in the spring is carried out once the tubular element and the device are mounted on the upper part of a window. Therefore, said locking devices are not suitable for springs whose potential energy storage must be carried out before the mosquito net is assembled and allow its safe handling, even during disassembly operations.
    [0011]
    [0012] Therefore, there is a clear need to provide a locking and unlocking device that allows locking and unlocking a winding mechanism that accumulates potential energy to wind and unwind a mosquito net and which in turn can be easily assembled and disassembled and securely in a roller shutter drawer.
    [0013]
    [0014] Description of the Invention
    [0015]
    [0016] The objective of the present invention is to solve the aforementioned drawbacks by developing a device for locking and unlocking a winding mechanism for a fabric, and a roller shutter drawer comprising the device for locking and unlocking a winding mechanism for a mosquito net that have the advantages described below.
    [0017]
    [0018] In accordance with this objective, according to a first aspect, the present invention relates to a device for locking and unlocking a winding mechanism for a mosquito net capable of being installed, for example, in a drawer of a roller shutter, which is characterized by the fact that it includes;
    [0019] - a rotary axis capable of being mounted in an inner drawer of said roller shutter, the rotary axis being capable of accumulating, in an active position, potential energy capable of being transmitted to a tubular support element of the mosquito net,
    [0020] - a locking and unlocking body provided with means for retaining the rotational movement of the rotary axis when this axis is in said active position,
    [0021] - means for jointly joining the locking and unlocking body with the tubular support element of the mosquito net,
    [0022] - where the rotary axis is coaxially mounted and longitudinally movable inside the locking and unlocking body from an advanced initial position to a retractable position to allow mounting in the roller shutter drawer,
    [0023] - where the rotary axis includes at least one stop element arranged to cooperate with the means for retaining the rotational movement of the locking and unlocking body, by longitudinally displacing the rotary axis and rotating the axis to a blocking position that maintains the axis rotary in said active position,
    [0024] - the stop element itself being capable of being released from the retention means by longitudinally displacing the rotary axis and rotating the axis to an unlocked position.
    [0025]
    [0026] The present invention has the advantage that it includes a locking and unlocking body that includes means for retaining the rotation of the rotary axis when this axis is in an active position. Thus, in this active position, the rotary axis can accumulate potential energy that thanks to the stop element of the rotary axis and to the retention means of the locking and unlocking body can be retained so that it is not accidentally released. Subsequently, the accumulated potential energy can be used to tighten the mosquito net arranged in the tubular element, when once the assembly has been carried out the rotary axis moves with a longitudinal and twisting movement to release the stop element from the retention means.
    [0027]
    [0028] In this way, a device for locking and unlocking a compact and easy-to-use winding mechanism is obtained, which allows a user to provide potential energy to a winding mechanism of a mosquito net and subsequently mount it in a blind box, without risk of that the accumulated potential energy is released during the assembly of the mosquito net. In the same way, the locking and unlocking device of the present invention allows the locking operation of the system to be performed to facilitate the removal operation inside the shutter box.
    [0029]
    [0030] According to a preferred embodiment, the retention means comprise at least some projections arranged inside a cavity of the locking and unlocking body that are configured to retain at least one stop element, by longitudinally displacing the rotary axis and rotating the axis until a locking position that maintains the rotary axis in said active position.
    [0031] In this way, the rotating shaft is free to rotate to accumulate potential energy, until the user decides to lock the rotating shaft by moving it to a locked position so that the accumulated potential energy is not released. When moving the rotary axis to a locked position, the projections of the locking and unlocking body contact the at least one stop element, so that they do not allow the rotary axis to rotate, which can cause the release of the energy stored in it .
    [0032]
    [0033] Advantageously, the stop element comprises at least one protrusion present on the rotary axis capable of being released from the shoulder when the rotary axis is moved longitudinally and rotated to an unlocked position that maintains it in said active position.
    [0034]
    [0035] In this way, the projection of the stop element and the projections of the locking and unlocking body make it possible to lock the rotary axis and subsequently unlock it by releasing the rotary axis, but keeping said axis in an active position in which it accumulates potential energy.
    [0036]
    [0037] Preferably, the joint connection means with the tubular support element include a connection flange provided on the outer surface of the locking and unlocking body capable of being housed in a recess in the tubular element to rotate jointly.
    [0038]
    [0039] In this way, the locking and unlocking body can rotate integrally to the tubular element, since the joint flange of the locking and unlocking body and the groove of the tubular element unite both components, so that when the locking and unlocking body rotates , the tubular element also rotates. Furthermore, with this connection, the locking and unlocking body is prevented from rotating freely inside the tubular element.
    [0040]
    [0041] According to a preferred embodiment, the device object of the invention further comprises a spring arranged coaxially between the rotary axis and the locking and unlocking body, so that the spring can be compressed when the rotary axis is displaced longitudinally within the body of the locking and unlocking, from an advanced starting position to a retractable position of the rotary axis.
    [0042]
    [0043] In this way, the rotary axis can be completely or partially retracted inside the locking and unlocking body, so that it facilitates the assembly of the mosquito net in a roller shutter drawer.
    [0044]
    [0045] Preferably, the rotary shaft is attached to a torsion spring so that it can accumulate potential energy from the torsion spring in an active position, said potential energy being susceptible of being transmitted to the tubular element of the mosquito net.
    [0046]
    [0047] In this way, the potential energy is accumulated in a torsion spring and not in the rotary axis, so that the rotary axis simply transmits the potential energy to the torsion spring until it is in an active position and later, when the user wishes. , the rotary axis transmits the accumulated potential energy to the tubular element.
    [0048]
    [0049] According to an embodiment, the union between the torsion spring and the rotary axis is produced by means of a union bushing located at one end of said rotary axis, which comprises a cavity arranged to cooperate with projections arranged on an outer surface of the rotary axis, of so that when the rotating shaft rotates, the bushing rotates integral with the shaft. In addition, the union bushing includes at least one flange located on an outer surface configured to removably mount a torsion spring portion.
    [0050]
    [0051] According to an embodiment, at least one end of the rotary axis is configured to be housed without the possibility of rotation in a housing of a lateral head of a roller shutter drawer. In this way, the rotary axis is housed in a cavity of a lateral head, so that it cannot be moved by rotation and, once unlocked, it can transmit the accumulated potential energy to the tubular element.
    [0052]
    [0053] Advantageously, the end of the rotary axis comprises projections configured to coincide with grooves arranged in the lateral end housing, preventing the rotary axis from rotating freely. In this way, when the rotary axis is in an active position and with accumulated potential energy, it is transmitted directly to the tubular element.
    [0054]
    [0055] Again advantageously, the end of said rotary axis comprises a cavity configured to couple a driveable tool to allow potential energy to accumulate in said rotary axis. In this way, the rotary axis has can be rotated to accumulate potential energy by coupling and rotating the tool in the cavity, facilitating the accumulation of potential energy.
    [0056] Optionally, the cavity at the end of the rotary shaft is in the shape of an internal hexagon, so that it can be operated, for example, by an Allen key. However, the end cavity can have a variety of different shapes to be actuated by its tools configured to engage said cavity.
    [0057]
    [0058] According to a preferred embodiment, a portion of the rotary axis comprises a connection piece provided with connection means with said tubular support element, so that said connection means are configured to move the connection piece with said tubular element integrally. In this way, the rotary axis is attached to the tubular element, so that it can transmit the rotational movement of the rotary axis to the tubular element.
    [0059]
    [0060] Optionally, the union piece is attached to a torsion spring, so that when the rotary axis rotates, the torsion spring compresses accumulating potential energy, since the union piece prevents free rotation of the torsion spring.
    [0061]
    [0062] Advantageously, the rotary axis comprises a first and a second rotary axis portion arranged inside the tubular element, so that both the first and the second axis portion act as support for the tubular element.
    [0063]
    [0064] According to the same embodiment, the first rotary axis portion includes a rotary axis end that coincides with one end of the tubular member, and is configured to mate with a cavity of a lateral end face of a shutter box. Furthermore, this first rotating shaft portion comprises a torsion spring having a connecting piece. The second rotary axis portion is arranged at an opposite end of the tubular element, so that the first and second rotary axis portions are not attached to each other, but both can be attached to the tubular element.
    [0065]
    [0066] Advantageously, the rotary axis comprises a second rotary axis portion arranged coaxially inside the connection piece, said second rotary axis portion including an end to be fitted in an opposite lateral head of a roller shutter. In this way, both the first and second portions of the rotary axis are joined by means of the connecting piece, so that the tubular element can be supported on both lateral ends of a drawer for roller shutter, through the two portions of the rotary axis.
    [0067]
    [0068] Again advantageously, the second rotary axis portion comprises a support body provided with means for joint connection with the tubular fabric support element mosquito net, where the second portion of the rotary axis is coaxially mounted and longitudinally movable inside the support body to be retracted from an advanced initial position to a suitable retractable position to allow mounting in the roller shutter drawer. In this way, the second portion can adopt a retracted position to facilitate assembly, for example, inside a roller shutter drawer.
    [0069]
    [0070] According to an embodiment, the second rotary axis portion further comprises a spring arranged coaxially between the second rotary axis portion and the support body, so that the spring can be compressed when the second rotary axis portion is longitudinally displaced within of the support body, from an advanced initial position to a retractable position of the second portion of the rotary axis.
    [0071]
    [0072] According to a second aspect, the present invention also relates to a roller shutter drawer, comprising the claimed locking and unlocking device.
    [0073]
    [0074] According to a preferred embodiment, the shutter drawer comprises;
    [0075] - a protective cover for a mosquito net where the cover includes a protective body of semicircular cross section adapted to cover the mosquito net completely or partially wound on the tubular element, - at least one lateral end cap configured to receive one end of the associated rotary axis to a locking and unlocking body of the device, and - means for removably attaching the protective body to the lateral head.
    [0076]
    [0077] In this way, the roller shutter drawer has a protective cover to protect the mosquito net, so that it is protected, for example, from dust or rain from the roller blind or from accidental rubbing with the roller blind.
    [0078]
    [0079] Preferably, the means for removably attaching the protective body to the lateral headpiece include a connecting latch provided on the protective body and capable of being displaced to be housed in a cavity of the lateral headwall. This latch allows the protective body to be removably mounted to the lateral head. In addition, the lateral headwall has a cavity to house one end of the latch, so that the protective body is mounted inside it to keep it in a suitable position and facilitate its assembly.
    [0080]
    [0081] Optionally, the protective body also includes a housing configured to receive a sealing gasket, so that this gasket contacts a wall of the roller shutter drawer. In this way, the protective body provides the drawer with an area in which the dust or water that can accumulate the blind (not shown) cannot seep into the area where the mosquito net is located.
    [0082]
    [0083] Advantageously, the means for removably attaching the protective body to the lateral end piece comprise a mosquito net guiding support mounted so that it acts as a support element for the protective body. In this way, the protective body comprises at least one support point to be mounted to the roller shutter drawer, making it difficult for it to come off accidentally, due, for example, to the rolling up of the blind.
    [0084]
    [0085] Again advantageously, the lateral headwall has a housing with a through hole to receive one end of the rotary axis so that the rotary axis is accessible from the outside of said roller shutter drawer. In this way, it is facilitated that the rotary axis can be driven to accumulate potential energy without the need to disassemble and subsequently mount the rotary axis of the shutter box.
    [0086]
    [0087] According to an alternative embodiment, the lateral headwall has a housing to receive a blind arranged off-center with respect to the geometric center of the lateral headwall. In this way, the shutter is wound in an off-center position, without interfering during its winding with the mosquito net or the protective cover.
    [0088]
    [0089] The present invention describes a roller shutter drawer with a protective cover in combination with the claimed locking and unlocking device. However, the roller shutter drawer with protective cover object of the invention can also be combined with different locking and unlocking devices than the one claimed.
    [0090]
    [0091] Brief description of the figures
    [0092]
    [0093] For a better understanding of what has been stated, some drawings are attached in which, schematically and only by way of non-limiting example, a practical case of embodiment is represented.
    [0094]
    [0095] Figure 1a shows a perspective view of a shutter drawer object of the invention for an embodiment example, so that said device for locking and unlocking a winding mechanism for a mosquito net is mounted inside it. For the sake of clarity neither the shutter nor the side walls of the shutter box are shown.
    [0096]
    [0097] Figure 1b shows a perspective view of a side end of a roller shutter drawer object of the invention for the same embodiment as figure 1a, so that said device for locking and unlocking a winding mechanism for a mosquito net is mounted on said lateral head.
    [0098]
    [0099] Figure 1c shows a perspective view of an opposite lateral head of a roller shutter drawer object of the invention for the same embodiment as figure 1a, so that a second portion of rotary axis is mounted on said opposite lateral head.
    [0100]
    [0101] Figure 2 shows an exploded perspective view of a roller shutter drawer object of the invention for the same embodiment as figure 1, so that said device for locking and unlocking a winding mechanism for a mosquito net is mounted on its inside. For the sake of clarity the shutter is not shown.
    [0102]
    [0103] Figure 3a shows a perspective view of said locking and unlocking device object of the invention for the same embodiment example as Figure 1a.
    [0104]
    [0105] Figure 3b shows an exploded perspective view of said locking and unlocking device object of the invention for the same example of embodiment as figure 1a.
    [0106]
    [0107] Figure 4a shows a sectional elevation view of said locking and unlocking device object of the invention for the same embodiment as figure 1a, when it is in a locked position.
    [0108]
    [0109] Figure 4b shows a sectional elevation view of said locking and unlocking device object of the invention for the same embodiment as figure 1a, when it is in an unlocked position.
    [0110]
    [0111] Figure 5 shows a perspective view of the locking and unlocking body, in which the joining means according to the same example of embodiment as figure 1a are observed.
    [0112] Figure 6 shows a perspective view of said connecting piece for the same example of embodiment as figure 1a.
    [0113]
    [0114] Figure 7 shows a sectional elevation view of said locking and unlocking device object of the invention for the same example of embodiment as figure 1a, mounted to said winding mechanism when it has a torsion spring and a connection piece.
    [0115]
    [0116] Figure 8 shows a sectional view of a winding mechanism that has said locking and unlocking device with a rotary axis that comprises a first and a second portion of a rotary axis.
    [0117]
    [0118] Figure 9a shows a perspective view of said protective cover for the same exemplary embodiment as Figure 1a, in which said protective cover includes a connecting latch mounted in a guide cavity of said cover.
    [0119]
    [0120] Figure 9b shows a sectional elevation view of said protective cover for the same example of embodiment as Figure 1a.
    [0121]
    [0122] Figure 10 shows an elevation view of said lateral head of said roller shutter drawer object of the invention for the same embodiment as Figure 1a.
    [0123]
    [0124] Figure 11 shows a perspective view of said guide support of the mosquito net fabric of the drawer for roller shutter object of the invention for the same example of embodiment as figure 1a.
    [0125]
    [0126] Figure 12 shows a sectional view of a second rotary axis portion for the same example of embodiment as figure 1a.
    [0127]
    [0128] Description of a preferred embodiment
    [0129]
    [0130] Next, a preferred embodiment of the device 1 for locking and unlocking a winding mechanism for a mosquito net 10, and a roller shutter drawer 5 comprising a device 1 for locking and unlocking a winding mechanism for a mosquito net 10 referring to Figures 1a to 12.
    [0131]
    [0132] In the described embodiment, the device 1 for locking and unlocking a winding mechanism for a mosquito net 10 is mounted inside a roller shutter drawer 5, so that the mosquito net 10 and the blind are both integrated in the same roller shutter drawer 5 (see figures 1a, 1b and 2). For the sake of clarity, the shutter has not been shown in the attached figures.
    [0133]
    [0134] The locking and unlocking device 1 of a winding mechanism for a mosquito net 10 comprises a rotating shaft 2 which is coaxially mounted inside a locking and unlocking body 3, so that the rotating shaft 2 can, in one position active, accumulating potential energy in a torsion spring 7. In the same way, the rotary axis 2 can move longitudinally inside the locking and unlocking body 3 from an advanced initial position to a retractable position, so that it facilitates its assembly in the roller shutter drawer 5 (see figures 3a to 8 ).
    [0135]
    [0136] In the described embodiment, the rotary axis 2 comprises a first 2a and a second 2b portion of rotary axis 2 arranged inside a tubular element 4, so that the first 2a as the second 2b portion of rotary axis 2 does not they are connected to each other, but both are connected to the tubular element 4 and to two lateral ends 6a, 6b, so that they act as a support for the tubular element 4 in the shutter box 5 (see figure 8).
    [0137]
    [0138] The first 2nd rotary axis portion 2 is positioned to coincide with one end of the tubular element 4, and comprises a locking and unlocking device 1. As seen in Figures 3a, 3b and 10, one end of the first 2a portion of rotary axis 2 is configured to be housed without the possibility of rotation in a housing 8a of a side end cap 6a of a roller shutter drawer 5 . In this way, the first 2nd portion of the rotary axis 2 is housed in the housing 8a of a lateral end cap 6a, so that it cannot be moved by rotation and once unlocked and in an active position it can transmit the accumulated potential energy to the element 4 tubular. The end of the first 2nd portion of the rotary axis 2 comprises protrusions 9 configured to coincide with grooves 11 arranged in the housing 8a of the lateral end cap 6a preventing the first 2nd portion of the rotary axis 2 from rotating freely.
    [0139]
    [0140] Furthermore, the end of the first 2nd portion of rotary shaft 2 includes a cavity 12 with Inner hexagon shape configured to couple an Alien type key to accumulate potential energy in the first 2nd portion of rotary axis 2. In this way, the first 2a portion of rotary axis 2 can be rotated to accumulate potential energy by coupling and turning the Allen key in cavity 12, facilitating the accumulation of potential energy (see Figures 3a, 3b).
    [0141]
    [0142] The second rotary axis 2 portion 2b is provided at an opposite end of the tubular element 4 and is configured to engage in a housing 8b of an opposite side end cap 6b. This second portion 2b of rotary axis 2 is coaxially mounted and longitudinally movable inside a support body 13 from an advanced initial position to a retractable position to allow mounting inside the roller shutter drawer 5. In addition, the support body 13 comprises a cavity 14 in which a spring 15 arranged coaxial to said support body 13 is housed. In turn, the spring 15 is also arranged coaxial to the second rotary axis 2 portion 2b, so that a portion of the second rotary axis 2 portion 2b is housed inside the spring 15. Similarly, the spring 15 contacts a wall 16 of the second portion of the rotary axis 2, so that by longitudinally displacing the second portion 2b of the rotary axis 2 inside the support body 13, the spring 15 is compressed. The compression of the spring 15 allows the second rotary axis 2 portion 2b to move from an advanced initial position to a retractable position and thus facilitate the mounting of the locking and unlocking device 1 in a roller shutter drawer 5 (see figures 1c , 8 and 12).
    [0143]
    [0144] Likewise, the support body 13 is provided with joint connection means on an outer surface, so that when it is housed inside the tubular support element 4 of the mosquito net 10, both components rotate together. These connecting means include a connecting flange 17 provided on the outer surface of the support body 13 and which is configured to be received in a longitudinal slit 18 arranged in an inner wall 19 of the tubular element 4. In this way, the connecting flange 17 and the slit 18 allow a connection between the support body 13 and the tubular element 4, so that both rotate together (see figure 12).
    [0145]
    [0146] As seen in Figure 12, the support body 13 has a stop body 20 that protrudes from the outer surface thereof. This protruding stop body 20 is configured so that the supporting body 13, once it is coaxially mounted inside the tubular element 4, contacts a lateral face of the tubular element 4 and remains located in a suitable position for mounting the second rotary axis 2 portion 2b. Furthermore, said stop body 20 acts as a guide so that the mosquito net 10 is correctly wound and unwound in the tubular element 4.
    [0147]
    [0148] The locking and unlocking body 3 includes a retaining means for blocking the rotation of the first 2nd rotating shaft portion 2 when it is in an active position. These retention means comprise projections 21 arranged inside a cavity 22 of the locking and unlocking body 3, configured in such a way that they can house projections 23 arranged on an outer surface of the first 2nd rotating shaft portion 2. These retention means allow that when rotating and longitudinally displacing the first rotary axis 2 portion 2a in a certain way, the projections 23 and projections 21 contact placing the first rotary axis 2 portion in a locked position, where it cannot rotate and where you can stay in an active position. Furthermore, the retention means allow the protrusions 23 to be released from the interior of the projection 21 by displacing and rotating in a certain way the first 2nd portion of rotary axis 2 (see Figures 3a to 5).
    [0149]
    [0150] In the described embodiment, the locking and unlocking body 3 has a joint connection means on an external surface, so that when it is housed inside a tubular element 4 for supporting the mosquito net 10 both components rotate in solidarity. These joining means include a joining flange 24 provided on the outer surface of the locking and unlocking body 3 and which is configured to be received in the longitudinal slit 18 arranged in an inner wall 19 of the tubular element 4. In this way, the connecting flange 24 and the slit 18 allow a connection between the locking and unlocking body 3 and the tubular element 4, so that both rotate together (see Figures 5 and 8).
    [0151]
    [0152] As seen in Figure 8, the locking and unlocking body 3 has a stop body 25 that protrudes from the outer surface thereof. This stop body 25 is configured so that the locking and unlocking body 3, once it is coaxially mounted inside the tubular element 4, contacts a lateral face of the tubular element 4 and is located in a position suitable for mounting the first portion of rotary axis 2. Furthermore, said stop body 25 acts as a guide so that the mosquito net 10 is correctly wound and unwound in the tubular element 4 (see Figures 1c, 8, The tubular element 4 has a cylindrical tubular section and has attached on its outer face a mosquito net 10 arranged wound around it and fastened to the tubular element 4. By rotating the tubular element 4 in, for example, clockwise, the mosquito net 10 unwinds from the tubular element 4. However, by rotating the tubular element 4 in the opposite direction, the mosquito net 10 is wound on the tubular element 4 (see figure 2).
    [0153]
    [0154] As seen in Figures 3b, 4a and 4b, the locking and unlocking device 1 comprises a spring 26 arranged coaxially in the cavity 22 of the locking and unlocking body 3. In turn, spring 26 is also arranged coaxial to the first 2nd portion of rotary axis 2, so that a portion of the first 2nd portion of rotary axis 2 is housed inside spring 26. In addition, spring 26 contacts with a wall 27 of the first 2nd portion of the rotary axis 2, so that by longitudinally displacing the first 2nd portion of the rotary axis 2 inside the locking and unlocking body 3, the spring 26 is compressed. The compression of the spring 26 allows the first 2nd rotary axis portion 2 to move from an advanced initial position to a retractable position and thus facilitate the mounting of the locking and unlocking device 1 in a roller shutter drawer 5.
    [0155]
    [0156] In the described embodiment, the first 2nd rotary axis 2 portion is attached to a torsion spring 7 by a connecting sleeve 28. This connecting bushing 28 includes a cube-shaped inner cavity 29, which is configured to house complementary projections X of the cavity 29, arranged on a portion of the outer surface of the first 2nd portion of the rotary axis 2. Thus, when the first 2nd portion of the rotary axis 2 rotates, the union bushing 28 rotates integrally. Furthermore, the union bushing 28 comprises a flange 31 configured to be attached to the torsion spring 7, so that when the union bushing 28 rotates, the torsion spring 7 compresses accumulating potential energy (see Figures 4a, 4b, 7 and 8).
    [0157]
    [0158] As seen in Figures 1b, 6, 7 and 8, the torsion spring 7 includes at one of its ends a connecting piece 32. This connecting piece 32 is press-fitted into the torsion spring 7 and includes a connecting flange 33 provided on the outer surface of the connecting piece and which is configured to be housed in a longitudinal slit 18 provided in the wall 19 interior of the tubular element 4. Thus, the connecting flange 33 and the slit 18 allow a connection between the connecting part 32 and the tubular element 4 and do not allow the torsion spring 7 to rotate freely inside the tubular element 4. Furthermore, in this way, the potential energy is accumulated in a torsion spring 7 and not in the first 2nd portion of the rotary axis 2, so that the first 2nd portion of the rotary axis 2 simply transmits the potential energy to the torsion spring 7 until it is in an active position and later, when the user wishes, the first The 2nd portion of the rotary axis 2 transmits the accumulated potential energy to the tubular element 4. In the described embodiment, the connecting piece 32 has a cavity 34 (see figure 7).
    [0159]
    [0160] The shutter drawer 5 described below includes walls 35 that form a rectangular prism and cover the interior of the drawer 5. Two of the walls 35 are lateral end caps 6a, 6b arranged at two opposite ends of the drawer 5 ( see figures 1a, 1b, 1c and 2).
    [0161]
    [0162] The side ends 6a, 6b are configured to receive a blind (not shown) and a mosquito net. One end of the first 2a portion of rotary axis 2 is configured to be housed housed without the possibility of rotation in a housing 8a of a lateral end cap 6a of a roller shutter drawer 5. Specifically, the end of the first 2nd portion of the rotary axis 2 comprises projections 9a configured to coincide with grooves 11a arranged in the housing 8a of the lateral end cap 6a preventing the first 2nd portion of the rotary axis 2 from rotating freely. Likewise, the opposite lateral end cap 6b and the second rotary axis 2 portion 2b also include protrusions 9b configured to coincide with grooves 11b provided in the housing 8b of the opposite lateral end cap 6b preventing the second rotary axis 2 portion 2b. can spin free. Furthermore, the lateral end caps 6a, 6b have cavities 36a, 36b provided to receive means for attaching a protective body 38 of a protective cover 37 to the lateral end cap 6a, 6b. According to an embodiment not shown, the housings 8a, 8b have a through hole, so that the first 2a and second 2b portion of rotary axis 2 are accessible from the outside of the blind box 5.
    [0163]
    [0164] The protective cover 37 is provided with a protective body 38 with a semicircular cross section adapted to longitudinally cover the mosquito net 10 fully or partially wound on the tubular element 4. Furthermore, the protective body 38 comprises a cavity 39 arranged longitudinally to house means for removably attaching the protective body 38 to the lateral end caps 6a, 6b. In the described embodiment, these joining means include a connecting latch 40 located in the cavity 39 so that it can be moved longitudinally to be housed in the lateral cavities 36a, 36b of the end faces 6a, 6b. In addition, the connecting latch 40 has a flange 41 located adjacent to it, to avoid longitudinal displacement of the latch that may cause that the protective body 38 detaches from the lateral end caps 6a, 6b (see figures 1a, 2, 9a and 9b).
    [0165]
    [0166] The protective body 38 is in turn attached to a guide support 42 mounted on the lateral ends 6a, 6b so that it acts as a support element for the protective body 38. The guide support 42 includes a dividing element 44 that acts to channel the mosquito net 10 and the blind into two separate portions of a guide (not shown) arranged, for example, on both sides of a window. The dividing element 44 is mounted to the side end caps 6a, 6b and has a slot 43 in which said protective body 38 is inserted so that it is fixed to the side end caps 6a, 6b.
    [0167]
    [0168] The protective body 38 further includes a housing 45 disposed along its entire length. This housing 45 is intended to house a sealing gasket (not shown) which contacts a lower wall 35 of the blind box 5. In this way, the dust or water that can accumulate the blind (not shown) cannot filter to the area where the mosquito net 10 is located.
    [0169]
    [0170] In the described embodiment, the lateral headwall 6a, 6b has a housing 46 to receive a blind (not shown) arranged centered with respect to the geometric center of the lateral headwall 6a, 6b. So that the blind does not interfere with the mosquito net 10 or the protective cover 38. Alternatively, the housing 46 can be arranged off-center with respect to the geometric center of the lateral end wall (6a, 6b). In this way, the blind (not shown) is wound in an off-center position, so that a larger winding diameter is achieved, without interfering with the mosquito net 10 or the protective cover 38.
    [0171]
    [0172] Furthermore, the lateral end caps 6a, 6b have a containment plate 47 that prevents the lateral movement of the shutter slats (not shown) inside the shutter drawer 5. This containment plate 47 has a hole to allow the passage of the latch 40 and to secure the protective body 38 to the lateral end cap 6a, 6b.
    [0173]
    [0174] Next, the operation of the locking and unlocking device 1 and the mounting of a mosquito net 10 in the shutter drawer 5 are described.
    [0175]
    [0176] In a first step, the user holds the tubular element 4, for example, with one hand, then with the other hand, grabs a tool, for example an Allen key and inserts it in a cavity 12 arranged at one end of the first 2nd rotary axis 2 portion to rotate it, so that the first 2nd rotary axis 2 portion rotates integrally and this rotates the torsion spring 7 by compressing it.
    [0177]
    [0178] Once the user has accumulated sufficient potential energy in the torsion spring 7, keeping the first 2nd rotary axis 2 portion in an active position, he proceeds to first longitudinally and subsequently rotate the first 2nd rotary axis 2 portion, so that the projections 23 arranged in the first 2nd rotary axis 2 portion are accommodated in the projections 21 of the locking and unlocking body 3, leaving the first 2nd axis 2 portion in a locked position.
    [0179]
    [0180] Next, the mosquito net is mounted in the roller shutter drawer 5. For this, the user moves the mosquito net assembly until the second rotary axis 2 portion 2b is accommodated in the housing 8b of the opposite lateral end cap 6b. Next, the second rotary axis 2 portion 2b is longitudinally displaced so that it occupies a retracted position. This step of the procedure allows the first 2nd portion of the rotary axis 2 to be positioned aligned with the housing 8a of the lateral end cap 6a, facilitating the maneuver for the user.
    [0181]
    [0182] Subsequently, the user longitudinally displaces the second rotary axis 2 portion 2b, so that the first 2nd rotary axis 2 portion is housed in the housing 8a of the lateral end cap 6a.
    [0183]
    [0184] Finally, the user first moves the first 2nd rotary axis 2 portion longitudinally and subsequently by rotation so that the projections 23 the first 2nd rotary axis 2 portion are released from the projections 21 of the locking and unlocking body 3. At the end of the process, the first 2nd rotary axis 2 portion is in an unlocked position maintaining an active position in which the torsion spring 7 accumulates potential energy.
    [0185]
    [0186] Alternatively, the user can accumulate potential energy in the torsion spring 7 when the mosquito net 10 is mounted in a shutter drawer 5, this can access the cavity 12 arranged at one end of the first 2nd portion of rotary axis 2 through of a through hole 48 arranged in the lateral end cap 6a, so that when it is made it is integral with the torsion spring 7 so that it is compressed.
    [0187] In this way, a device 1 for locking and unlocking a compact and easy-to-use winding mechanism is obtained, which allows a user to provide potential energy to a winding mechanism of a mosquito net 10 and subsequently mount it in a drawer 5 for blinds, without risk of the accumulated potential energy being released during the assembly of the mosquito net 10.
    [0188]
    [0189] Although reference has been made to a specific embodiment of the invention, it is evident to a person skilled in the art that the device for locking and unlocking a winding mechanism for a mosquito net and the roller shutter drawer comprising the device The locking and unlocking mechanisms described are susceptible to numerous variations and modifications, and that all the aforementioned details can be replaced by other technically equivalent ones, without departing from the scope of protection defined by the appended claims. Although it has been described that the roller shutter drawer 5 with a protective cover 37 is in combination with the claimed block and unlocking device 1. This roller shutter drawer can also be combined with other locking and unlocking devices 1 other than the one claimed. Although it has been described that the roller shutter drawer 5 with a protective cover 37 is in combination with the claimed block and unlocking device 1. This roller shutter drawer can also be combined with other locking and unlocking devices 1 other than the one claimed.
    权利要求:
    Claims (16)
    [1]
    1. - Device (1) for locking and unlocking a winding mechanism for a mosquito net (10) capable of being installed in a drawer (5) of a roller shutter, characterized by the fact that it includes;
    - a rotating shaft (2a, 2b) capable of being mounted in an inner drawer (5) of said roller shutter, said rotating shaft (2a, 2b) being able to accumulate, in an active position, potential energy capable of being transmitted to a tubular support element (4) of said mosquito net (10),
    - a locking and unlocking body (3) provided with means for retaining the rotational movement of said rotary axis (2a, 2b) when this axis is in said active position,
    - means for jointly connecting the body (3) for locking and unlocking with said tubular element (4) for supporting the fabric (10) mosquito net,
    - where said rotary axis (2a, 2b) is coaxially mounted and longitudinally displaceable inside the locking and unlocking body (3) from an advanced initial position to a retractable position to allow mounting in the drawer (5) of the blind roll-up,
    - wherein said rotary axis (2a, 2b) includes at least one stop element arranged to cooperate with the means for retaining the rotational movement of the locking and unlocking body (3), by longitudinally displacing the rotary axis (2a, 2b) and rotating said axis (2a, 2b) to a locked position that maintains the rotary axis (2a, 2b) in said active position,
    - the same stop element being capable of being released from said retention means by longitudinally displacing the rotary axis (2a, 2b) and rotating said axis (2a, 2b) to an unlocked position.
    [2]
    2. - Device (1) according to claim 1, wherein said retention means comprise at least some projections (21) arranged inside a cavity (22) of said locking and unlocking body (3) that are configured to retain at least one stop element, by longitudinally displacing the rotary axis (2a, 2b) and rotating said axis (2a, 2b) to a locked position that maintains the rotary axis (2a, 2b) in said active position.
    [3]
    3. Device (1) according to claim 2, wherein said at least one stop element it comprises at least one projection (23) present on the rotary axis (2) capable of being released from said projection (21) by longitudinally moving said rotary axis (2a, 2b) and rotating said axis (2a, 2b) to a position of unlocking that keeps the rotary axis (2a, 2b) in said active position.
    [4]
    4. - Device (1) according to any of the preceding claims, wherein said means of joint connection with the tubular support element (4) include a connecting flange (24) provided on the outer surface of said locking body (3) and unlocking capable of being housed in a slot (18) of said tubular element (4) to rotate jointly.
    [5]
    5. - Device (1) according to any of the preceding claims, wherein it further comprises a spring (26) arranged coaxially between said rotary axis (2a, 2b) and said body (3) for locking and unlocking so that said spring (26) can be compressed when the rotating shaft (2a, 2b) is displaced longitudinally inside the locking and unlocking body (3), from an advanced initial position to a retractable position of the rotating shaft (2a, 2b) .
    [6]
    6. - Device (1) according to claim 1, wherein said rotary axis (2a, 2b) is attached to a torsion spring (2) so that it can accumulate in an active position potential energy from said spring (7) of torsion, said potential energy being susceptible to being transmitted to the tubular support element (4) of the mosquito net (10).
    [7]
    7. - Device (1) according to any of the preceding claims, in which at least one end of said rotary axis (2a, 2b) is configured to be housed without the possibility of rotation in a housing (8a, 8b) of a end cap (6a, 6b) side of a roller shutter drawer (5).
    [8]
    8. - Device (1) according to claim 7, wherein said end of said rotary axis (2a, 2b) comprises a cavity (12) configured to couple a driveable tool to allow potential energy to accumulate in said axis (2a, 2b ) rotary.
    [9]
    9. - Device (1) according to claim 6, wherein a portion of said rotary axis (2a, 2b) comprises a connecting piece (32) provided with connecting means with said tubular support element (4), so that Said joining means are configured to jointly move said joining piece (32) with said tubular element (4).
    [10]
    10. - Device (1) according to claim 9, wherein said rotary axis (2a, 2b) comprises a second (2b) portion of rotary axis (2a, 2b) arranged coaxially inside said part (32) of connection, said second (2b) portion of rotary axis (2a, 2b) including one end to be fitted in an opposite lateral head (6b) of a roller shutter.
    [11]
    11. - Device (1) according to claim 10, wherein said second (2b) portion of rotary axis (2a, 2b) comprises a support body (13) provided with means for joint connection to said tubular element (4) mosquito net fabric support (10), where said second (2b) portion of rotary axis (2a, 2b) is coaxially mounted and longitudinally movable inside the support body (13) to be able to be retracted from an advanced initial position to a suitable retractable position to allow mounting in the drawer (5) of the roller shutter.
    [12]
    12. - Roller shutter drawer (5), comprising the device (1) for locking and unlocking a winding mechanism for a mosquito net (10) according to any of claims 1 to 11.
    [13]
    13. - Drawer (5) according to claim 12, comprising:
    - a protective cover (37) for a mosquito net (10) where said cover (37) includes a protective body (38) of semicircular cross section adapted to cover said mosquito net (10) totally or partially wound on the element (4) tubular,
    - at least one lateral end cap (6a, 6b) configured to receive one end of said rotary axis (2a, 2b) associated with a body (3) for locking and unlocking said device (1), and
    - means for removably attaching said protective body (38) to said lateral head (6a, 6b).
    [14]
    14. - Drawer (5) according to claim 13, wherein said means for removably attaching said protective body (38) to said lateral head (6a, 6b) include a connecting latch (40) provided in the body ( 38) Protective and capable of being displaced to be housed in a cavity (36) of said lateral headwall (6a, 6b).
    [15]
    15. Drawer according to claim 14, wherein said means for removably attaching said protective body (38) to said lateral head (6a, 6b) comprise a guide support (42) of the mosquito net fabric (10) mounted so that it acts as a support element for said protective body (38).
    [16]
    16.- Drawer according to claim 13, wherein said lateral end cap (6a, 6b) has a housing (8a, 8b) with a through hole (48) to receive an end of said rotary axis (2a, 2b) of so that said rotary axis (2) is accessible from the outside of said roller shutter drawer (5).
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    同族专利:
    公开号 | 公开日
    ES2757978B2|2020-09-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2060676A|1935-05-21|1936-11-10|Rolscreen Co|Roller spring adjusting means|
    EP2426308A1|2010-09-01|2012-03-07|Inalfa Roof Systems Group B.V.|Rollo assembly|
    JPWO2013005524A1|2012-06-06|2015-02-23|立川ブラインド工業株式会社|Connecting device and roll blind|
    EP3056649A1|2015-02-13|2016-08-17|Hunter Douglas Inc.|Covering for an architectural opening having nested tubes|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201831048A|ES2757978B2|2018-10-30|2018-10-30|DEVICE FOR LOCKING AND UNLOCKING A WINDING MECHANISM FOR A MOSQUITO NET AND ROLLER BLIND DRAWER INCLUDING SUCH DEVICE|ES201831048A| ES2757978B2|2018-10-30|2018-10-30|DEVICE FOR LOCKING AND UNLOCKING A WINDING MECHANISM FOR A MOSQUITO NET AND ROLLER BLIND DRAWER INCLUDING SUCH DEVICE|
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