1. Field of the Invention
The present invention relates to a built-in sunshade product for a hollow glass, more particularly, to an electrical control mechanism for a louver (curtain) and a foldable curtain installed within the hollow glass.
2. Description of the Related Art
For the demands of the environmental protection, energy saving and comforts of life, the sunshade products are broadly used. The louver (curtain) and the foldable curtain are commonly used on the indoor window. Due to the special characteristics of the hollow glass, such as thermo insulating property, sound insulation property, anti glazed frost, dust and pollution proofing and the likes, through the development over more than one hundred years, the hollow glass becomes widely used throughout the world. Chinese Patents ZL03238471.8 (patent family in US is U.S. Pat. No. 7,124,803 B2), ZL200320128533.5, ZL200420057384.2 and so on applied by the same applicant of the present invention are related to the louver built within the hollow glass, which belongs to one of built-in sunshade products for the hollow glass.
As shown in
However, in the above known techniques, it adopts manual operations which entails the usage of the sunshade louver inconvenient. The present invention provides an electrically controlled louver and a foldable curtain used in a hollow glass, which has reasonable contrivance and can be operated easily and reliably.
Accordingly, an object of the present invention is to provide an electrical control mechanism for a built-in sunshade product for a hollow glass. With an electrical control manner, control buttons for the product can be disposed at a location where operation can be easily carried out or a remote control manner can be employed for the product.
According to an aspect of the present invention, the present invention provides an electrical control mechanism for a built-in sunshade product for a hollow glass. The electrical control mechanism comprises a control device, a transmission mechanism, a handle disposed outside the hollow glass and a sliding block disposed within the hollow glass. The control device is a remote controller or/and a manual controller; the transmission mechanism is disposed outside the hollow glass to drive said handle to move up and down by means of the rotation of a motor; and said handle and said sliding block are provided with magnets therein and are attracted to each other by virtue of the magnetic force.
The transmission mechanism includes a screw rod having one end coupled with the motor and another end passing through and engaging with said handle, the motor drives the screw rod to rotate, and the handle moves up and down along the screw rod by rotation of the screw rod.
The transmission mechanism includes a synchronous toothed belt and two synchronous toothed belt pulleys, said synchronous toothed belt is engaged with the two upper and lower synchronous toothed belt pulleys; said handle is fixed on the synchronous toothed belt and disposed between said two synchronous toothed belt pulleys. The synchronous toothed belt is driven to move around said synchronous toothed belt pulleys by the motor, and the handle is moved up and down by the movement of the synchronous toothed belt. The handle is fixed to the belt by gluing or other fixing connection methods.
The transmission mechanism includes a gear, a rack and a guiding rail being fixed parallel to each other, the handle, the gear and the motor are connected to be integrated together and constrained in a space formed by the guiding rail and the gear. The gear is co-axial with the motor and engaged with the rack. The motor drives the gear to rotate, accordingly, the handle moves up and down along the rack by the motor. Both the handle and the motor are mounted on a mounting board. A circuit board for driving the motor in the control device may be disposed on the handle or the mounting board.
The sunshade product according to the present invention has the following advantages. The sunshade product can overcome the difficulty of operating a manually controlled built-in sunshade product for a hollow glass which is mounted at a high location. On the other hand, the motor and the control circuit are provided outside the hollow glass, so that the maintenance thereof becomes possible and convenient.
Embodiments of the present invention will be described hereinafter in detail with reference to the attached drawings, wherein the like reference numerals refer to the like elements throughout the specification. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.
A transmission mechanism 80 of the embodiment comprises a screw rod 56 having one end passing through the elevating operation handle 52. Thread is provided in the elevating operation handle 52 for engaging with the screw rod 56, so that the elevating operation handle 52 is movable up and down along the screw rod 52 by rotation of the screw rod 56. The other end of the screw rod 56 is coupled with the motor 57. When the motor 57 rotates, the screw rod 56 is driven to rotate in positive forward direction or a reverse direction.
The motor 57 may be set in advance in such a manner that the motor 57 drives the screw rod 56 to rotate in a forward direction when it rotates in the forward direction, and the motor 57 drives the screw rod 56 to rotate in a reverse direction when the motor 57 rotates in the reverse direction. When using the built-in sunshade product for the hollow glass, if a user wants to open the sunshade product, the motor 57 is controlled by the control circuit to rotate, and the motor 57 drives the screw rod 56 to rotate so as to drive the elevating operation handle 52 to move up and down. As a result, the elevating sliding block 13 also moves up and down together with the elevating operation handle 52.
The motor 57 is mounted on a mounting board 60 and is co-axial with one of the synchronous toothed belt pulleys 59. The motor 57 drives the one of synchronous toothed belt pulleys 59 to rotate, and thus the synchronous toothed belt 58 is driven to be rotated, so that the elevating operation handle 52 moves up and down together with the synchronous toothed belt 58. As a result, the elevating sliding block 13 also moves up and down together with the elevating operation handle 52.
When in use, under the control of the control circuit 50, in a long and narrow space formed between the guiding rail 62 and the rack 64, the gear 61 is driven by the motor 57 to he rotated. Since the gear 61 is engaged with the rack 64, the elevating operation handle 52, the mounting member 60 and the motor 57, which are integrated, move up and down along the rack 64. The elevating sliding block 13 also moves up and down through the magnetic force generated by the magnets 15A and 15B.
Although only three embodiments are illustrated above, the elevating operation handle 52 or the slat turning operation handle 51 may move via a motor through a belt, chain wheel or the likes, so that the sliding blocks 13 or 26 within the glass move up and down.
It would he appreciated by those skilled in the art that many modifications, alterations and substitutions may he made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Number | Date | Country | Kind |
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200910168571.5 | Aug 2009 | CN | national |