Patent Grant
10745967
The disclosure relates to a curtain controller for easily assembling bead chain. More particularly, the disclosure relates to a curtain controller, which can block the bead chain to prevent the bead chain from sliding into the gap between the shielding part of the shielding cover and the connecting terminal face of the fixing seat when a user pulls the bead chain in a wrong direction or with an excessive force. Therefore, the curtain controller can increase the practical efficacy features thereof, and can be easily assembled with curtain bead chain.
With the ever-changing technology and the improvement of living standards of the people, people's requirements for the quality of home living environment are also gradually increasing. In the area of living, various types of doors and windows are an important device. They are not only related to housing lighting and ventilation needs, but also provide windbreak and waterproof function. Therefore, improving the quality of living environment is really dependent on well-designed windows and doors. Curtains are used to cover windows and doors, and have functions of being beautiful, as well as shading and adjusting the intensity of light irradiation. Due to the hue, styles and patterns of the curtains directly affect the overall effect of the entire home, the curtain is naturally the focus when a house needs renovation and dress. As long as curtains are changed to different colors or large floral patterns, bedroom expression is immediately enriched to create a happy atmosphere.
The general structure of the curtain is mainly a curtain cloth wound on the shaft. The shaft is connected with a controller, and a bead chain is wound around the controller. By pulling the bead chain to drive the shaft to rotate forward or reverse via the controller, the curtain can be controlled to ascend or descend. Since the overall length of the bead chain needs to be adjusted according to the length of the drape of the curtain fabric, the setting of the bead chain is often done at the construction site according to the size of the window, and installation is then performed. The bead chain is a ring composed of a series connected beads, and the bead chain needs to be wound on the seat of the controller. However, the bead chain can be installed on the seat of the controller only after disassembling the present curtain structure with tools. Hence, the assembling of the bead chain is quite inconvenient.
A “bead chain wheel of curtain” is disclosed in TW M301271U published on Nov. 21, 2006. The bead chain wheel comprises an outer seat having an external sheet. An outer seat tube is extended from the center of the outer seat. The extending terminal is an outer seat core assembly having a seat ladder with a fall on a front end thereof. The outer seat tube encloses a spring having spring protrusions on both ends. An outer seat ring is vertically extended from the external sheet. A bead seat is composed of a seat ring connected to a seat turn. The center of the bead seat is penetrated by a seat hole. Some bead rooms are disposed on the periphery of the seat ring. An inner sleeve is composed of an inner tube and an inner annular sheet with a larger outer diameter. The inner sleeve is penetrated by an inner hole. The inner wall of the inner tube has a fall to form a tube ladder. The bead seat encloses the outer seat tube, and the outer seat core assembly penetrates the inner hole of the inner sleeve and is fastened on the outer edge of the inner sleeve to be assembled and positioned. When the seat ladder is fastened on the tube ladder, the sear ladder is not covered by the outer seat ring. However, although no tools are needed to fast assemble the “bead chain wheel of curtain,” the outer seat is pulled outward when the bead chain is installed. The outer seat is retreated from the inner annular sheet of the inner sleeve, so that the bead rooms can be exposed when the seat ladder is fastened on the tube ladder. Therefore, the bead seat is not limited to escape from the inner sleeve, and a re-installation is inconveniently needed. In the operation process, the outer ring of the outer seat is only against the inner annular sheet of the inner ring to have a gap. Therefore, when the bead chain is pulled in a deviated direction and with an excessive force, the bead chain escapes from the bead seat to be stuck between the outer seat and the inner sleeve. Hence, other tools are needed to move the bead chain back into the bead rooms. This is very inconvenient.
A “quickly-assembled bead chain curtain controller” is disclosed in TW M496429U, published on Mar. 1, 2015. The controller comprises a fixing seat, a bead chain turntable, a spring and a socket sequentially enclosed and assembled as one. A disc body is formed on one end of the socket adjacent to the fixing seat, and an upper edge of a disc body of the fixing seat has a protective cover. Two insertion trenches are separately disposed on the periphery of the disc body of the socket to receive two sides of a bead chain. However, although no tools are needed to quickly assemble the “quickly-assembled bead chain curtain controller,” it is found that a gap exists between the protective cover and the disc body since they are only abutted together. Therefore, when the bead chain is pulled in a deviated direction and with an excessive force, the bead chain escapes from the bead chain turn table to be stuck between the fixing seat and the disc body of the socket. Hence, other tools are also needed to move the bead chain back into the bead chain turntable. There is still room for improvement in the overall structural design.
Therefore, in view of the foregoing drawbacks, the inventors develop this curtain controller that can conveniently assemble bead chain by the many-year manufacturing and design experience and knowledge in the related fields and ingenuity to achieve the purpose of better practical value.
A main aspect of this invention is to provide a curtain controller for easily assembling a bead chain. A bead chain turntable is disposed on an assembling terminal surface of a fixing seat. A positioning seat is combined with the fixing seat to clamp and position the bead chain turntable. A protective cover is assembled on an outer side of the positioning seat. A shielding part is disposed at one side of the protective cover to correspond to an upper edge of the assembling terminal surface of the fixing seat. A fastening groove is disposed on an outer rim of the assembling terminal surface of the fixing seat. A fastening flange is disposed on the shielding part of the protective cover to be inserted into and combined with the fastening groove. A ladder section is formed between a lower side of the fastening flange and the shielding part. When the pulling direction of the bead chain is deviated or the pulling force is too large, the bead chain can be blocked from sliding and inserting between the shielding part of the protective cover and the assembling terminal surface of the fixing seat.
To more completely and clearly illustrate the technical means and effects of this invention, the detailed descriptions are set forth below. Please refer to the disclosed figures and the reference numbers.
First, please refer to
A fastening groove 111 is disposed at an outer rim of the assembling terminal surface 11 of the fixing seat 1. A fastening flange 511 is disposed on the shielding part 51 of the protective cover 5 to fit the fastening groove 111. A ladder section 512 is disposed between a lower side of the fastening flange 511 and the shielding part 51.
Please refer to
Furthermore, please refer to
In light of the foregoing embodiments of this invention, it can be known that the bead chain can be stopped to prevent from sliding and inserting between the shielding part of the protective cover and the assembling terminal surface of the fixing seat when the pulling direction of the bead chain is deviated or the pulling force is too large. Therefore, the practical effect of the curtain controller can be further increased.
| Number | Name | Date | Kind |
|---|---|---|---|
| 20130244824 | Clark | Sep 2013 | A1 |
| Number | Date | Country |
|---|---|---|
| M301271 | Apr 1995 | TW |
| M496429 | Mar 2015 | TW |
| Number | Date | Country | |
|---|---|---|---|
| 20190186197 A1 | Jun 2019 | US |
