Embodiments of the current invention relate to curtains and draperies and their maintenance and specifically to a curtain lowering apparatus and method directed to cleaning and maintaining curtains.
In the specification and claims which follow, the terms “curtain” “drapes”, and “draperies” are used interchangeably and having the same meaning to refer to any decorative window and/or wall covering, usually made from a wide variety of fabrics, as known in the art.
Curtains are used widely in private homes as well as in public and business settings such as, but not limited to: hotels; convention centers; offices; stages; and schools. Reference is currently made to
Even in clean locations, curtain 3 must be removed and/or cleaned from time to time, as known in the art. A curtain cleaning process typically entails climbing a step stool or ladder a height equivalent to H above the floor to remove the curtain from the curtain rod for curtain laundering and/or dry cleaning and subsequently climbing again to height H above the floor to reattach the cleaned curtain onto the rod. In some settings, the curtain cleaning process may not entail removing the curtain from the curtain rod; however, in most cases additional equipment and/or climbing close to height H above the floor is necessary.
Clearly, such climbing, curtain removal and reattaching, and/or introduction of additional equipment make the curtain cleaning process not only difficult, but expensive and having associated risks, as described below.
In an article written by Ben Yakas, published in Gothamist on 1 Oct. 2011, entitled “Teen Fatally falls from Apartment Window in Curtain Hanging Accident”, https://gothamist.com/news/teen-fatally-falls-from-apartment-window-in-curtain-hanging-accident. Ben Yakas describes how Yohan Hernandez, a 14-year old Bronx boy slipped while hanging curtains in his 5th floor apartment and fell out the window to his death. Yohan Hernandez was standing on a chair installing curtains when the tragic accident occurred.
In an article published in Industrial Safety & Hygiene News (ISHN) on 6 Jul. 2017, https://www.ishn.com/articles/106830-000-falls-from-ladders-annually-97-percent-occur-at-home-or-on-farms, it is cited that according to the American Academy of Orthopedic Surgeons, every year 500,000 people are treated for ladder-related injuries and approximately 300 of these incidents prove to be fatal. In 2007 alone, more than 400 people died as a result of falls on or from ladders or scaffolding. Ladder-related injuries per 100,000 people rose almost 27 percent during a 16-year study period—97.3 percent occurred in non-occupational settings, such as homes and farms. More than 2.1 million people needed to be hospitalized, about twice the overall admission rate for consumer-product related injuries. The study concluded that given the 50 percent increase in ladder-related injuries during the study period, the relatively high likelihood of hospital admission, and the predominance of injuries in non-occupational settings, increased efforts are needed to prevent ladder-related injuries.
Citing information from the US Bureau of Labor Statistics, The Economics Daily, https://www.bls.gov/opub/ted/2022/fatal-injuries-from-ladders-down-in-2020-nonfatal-ladder-injuries-were-essentially-unchanged.htm, in an article from 25 Apr. 2022, entitled: “Fatal injuries from ladders down in 2020; nonfatal ladder injuries were essentially unchanged”, it is noted that in 2020, there were 161 fatal work injuries from which ladders were the primary source. This was a 5.8-percent decline from 2019 (171 deaths). There were 105 deaths specifically from movable ladders in 2020 and 5 deaths from fixed ladders.
In an article by Peter Simeonov, published on 13 Mar. 2017 in the Centers for Disease Control and Prevention (CDC), https://blogs.cdc.goviniosh-science-blog/2017/03/13/ladder-safety-month/, Simeonov notes how each year in the U.S., more than 500,000 people are treated and about 300 people die from ladder-related injuries. The estimated annual cost of ladder injuries in the U.S. is $24 billion, including work loss, medical, legal, liability, and pain and suffering expenses. Data analysis from three surveillance systems in 2011 showed that workers who are male, Hispanic, older, self-employed, work in smaller establishments, and work in construction, maintenance, and repair experience higher rates of falls from ladders. It is evident from these numbers that ladder-related falls are a serious problem and that there is a need to reduce the resulting injury and death.
In addition to references hereinabove identifying substantial risks associated with climbing, readily-available internet and anecdotal information identify that the average cost to clean curtains is nearly $250, while “high end” work can cost up to $600.
There is therefore a need for an apparatus and method for lowering and subsequent raising of curtains, associated with their cleaning and maintenance, that is not only cost effective (meaning costing less than ordering periodic curtain cleaning) but that can significantly reduce and nearly eliminate risks associated with ladder and stepstool climbing to remove and reattach curtains.
According to one aspect of the present invention, there is provided a curtain lowering apparatus directed to cleaning and maintaining a curtain suspended above a floor, the apparatus having a first, not-lowered position at a height “H” above the floor, and a second, lowered position of H−L above the floor, the apparatus comprising: a curtain rod attached to at least two curtain rod rings, the curtain suspended from the curtain rod; at least two apparatus rod supports, the rod supports directed to support the at least two curtain rod rings; a drive unit configured to drive at least two drive cables, with respective drive cables routed through respective apparatus rod supports and respective drive cables further connected to respective curtain rod rings; wherein the curtain rod is alternately maintained at the first, not-lowered position and at the second, lowered position. Preferably, the drive unit includes: a first drive motor having a drive axle defining a drive axis, which has a first end and a second end, upon which drive axle elements are axially configured; and an electronics and communication unit, with the first drive motor, the drive axle, and the electronics and communications unit configured within an enclosure. Most preferably, the electronics and communications unit is connected to the first drive motor and the electronics and communications unit is configured to receive commands to lower and raise the curtain. Typically, the drive axle elements include: spacers located at the first end and at the second end; and an equal number of: bias springs; spools, drive discs; and friction pads; all of which are located between the spacers. Preferably, the enclosure has an opening through which the drive cables pass. Most preferably the drive unit is configured to maintain a level configuration of the curtain rod, substantially parallel to the floor, as the curtain rod is raised.
Typically, the drive unit is configured to raise and lower a total load representing the combined weight of: the curtain, the curtain rod; rod-curtain rings; and drive cables. Most typically, the equal number of: bias springs; spools, drive discs; and friction pads is 2 with a total load less than 14 kg and with two curtain rod rings. Preferably, the equal number of: bias springs; spools, drive discs; and friction pads is 3 with a total load ranging from 14 to 60 kg and with 3 curtain rod rings. Most preferably, an alternative configuration of the drive unit includes a second drive motor.
According to another aspect of the present invention, there is provided a method of operating a curtain lowering apparatus directed to cleaning and maintaining a curtain suspended above a floor, the apparatus having a first, not-lowered position at a height “H” above the floor, and a second, lowered position of H−L above the floor, the method comprising the steps of: suspending the curtain, which is attached to at least two curtain rod rings, from the curtain rod; configuring at least two apparatus rod supports to support the at least two curtain rod rings; configuring a drive unit to drive at least two drive cables, with respective drive cables routed through respective apparatus rod supports and the respective drive cables further connected to respective curtain rod rings; whereby the curtain rod is alternately maintained at the first, not-lowered position and at the second, lowered position. Preferably, the drive unit includes: a first drive motor having a drive axle defining a drive axis, which has a first end and a second end, upon which drive axle elements are axially configured; and an electronics and communication unit, with the first drive motor, the drive axle, and the electronics and communications unit configured within an enclosure. Most preferably, the electronics and communications unit is connected to the first drive motor and the electronics and communications unit is receives commands to lower and raise the curtain.
Typically, the drive axle elements include: spacers located at the first end and at the second end; and an equal number of: bias springs; spools, drive discs; and friction pads; all of which are located between the spacers. Most typically, the enclosure has an opening through which the drive cables pass, and the drive unit maintains a level configuration of the curtain rod, substantially parallel to the floor, as the curtain rod is raised. Preferably, the drive unit raises and lowers a total load representing the combined weight of: the curtain, the curtain rod; rod-curtain rings; and drive cables. Most preferably, the equal number of: bias springs; spools, drive discs; and friction pads is 2 when there is a total load less than 14 kg and with two curtain rod rings. Typically, the equal number of: bias springs; spools, drive discs; and friction pads is 3 with a total load ranging from 14 to 60 kg and with 3 curtain rod rings. Preferably, an alternative configuration of the drive unit includes a second drive motor.
The invention is described herein, by way of example only, with reference to the accompanying drawings, wherein:
Embodiments of the current invention relate to curtains and draperies and their maintenance, and specifically to a curtain lowering apparatus and method directed to cleaning and maintaining curtains.
Reference is currently made to
Curtain lowering apparatus includes: apparatus rod supports 6a; curtain rod rings 16; a drive unit 17; and drive cables 18. As can be seen schematically by comparing
Drive unit 17 is commanded by a remote-control unit or optionally as a wired control unit, as known in the art, not shown in the figures. Optionally or additionally, drive unit 17 is commanded by voice commands, such as, but not limited to: Amazaon Alexa and Apple Siri—as known in the art.
Additionally shown in
Reference is currently made to
Alternate curtain lowering apparatus 10a includes: apparatus rod supports 6b; curtain rod clips 16a; drive unit 17; and drive cables 18. Similar to curtain lowering apparatus 10 as shown in
Elements of alternate curtain lowering apparatus 10a and curtain lowering apparatus 10 may be used interchangeably, with regard to ceiling mounting and/or routing of the drive cables and/or location of the drive unit, mutatis mutandis. Similarly, references hereinbelow and in the claims which follow to apparatus rod supports 6a and to curtain rod ring 16 are to be understood to be interchangeable with and to apply equally to apparatus rod supports 6b and to curtain rod clips 16a, mutatis mutandis.
Reference is currently made to
Drive unit 17 further includes an electronics and communications unit 35, which is mounted within enclosure 19 and is electrically-connected to drive motor 23. The electronics and communications unit receives power from a mains source (not shown in the current figure) or optionally from an on-board power source, such as, but not limited to batteries. Electronics and communications unit 35 serves to receive remote or optional wired commands to lower and raise the curtain by activating the drive motor to rotate drive axle 22 and thereby to alternately spool/collect the drive cables onto spools 26 within the enclosure (thereby raising the curtain) or to unspool/release the drive cables from spools 26 and from the enclosure (thereby lowering the curtain). Bias springs 24, spools 26, drive discs 28, and respective friction pads 30 are configured on the drive axle to spool or unspool the drive cables in a clutch-like configuration, as known in the art.
One important aspect of drive unit 17 is that it serves to maintain a level configuration (i.e., a configuration substantially parallel to the floor) of curtain rod 5, as the curtain rod is raised, by collecting/spooling and maintaining a substantially uniformly taut configuration of the drive cables. Maintaining the uniformly taut configuration is accomplished by taking advantage of the clutch-like configuration described hereinabove of the bias springs, the spools, the drive discs, and the respective friction pads when the drive cables are collected/spooled, as further described hereinbelow. When all of curtain rod rings 16 are raised and contact respective apparatus rod supports 6a at substantially the same instant, then the level configuration (corresponding to the uniformly taut configuration of the drive cables) is maintained, and the respective drive cables are no longer spooled.
However, whenever at least one drive cable 18 is collected, and respective curtain rod ring 16 is resultantly raised—but the respective curtain rod ring does not contact its respective apparatus rod support 6a—then spooling of the respective drive cable continues, until curtain rod ring 16 contacts its respective apparatus rod support 6a. When curtain rod ring 16 contacts its respective apparatus rod support 6a, a tension of the respective drive cable momentarily increases, thereby providing a force stronger than that of the respective bias spring 24. When the stronger force acts upon respective bias spring 24, the respective bias spring disengages the respective friction pad from the respective drive disc—thereby yielding affecting the clutch-like configuration noted hereinabove.
The configuration of drive unit 17 shown in
Drive unit 17 may be configured modularly with regard to the total load, as described hereinbelow. An optional or alternative exemplary configuration of drive unit 17 includes first drive motor 20, and two sets of bias springs 24, spools 26, drive discs 28, and friction pads 30—to raise and lower a total load under 14 kg with a curtain configuration having two curtain rod rings 16. An additional optional or alternative exemplary configuration of drive unit 17 includes first drive motor 20 and a second drive motor (not shown in the figure), and two or more sets of bias springs 24, spools 26, drive discs 28, and friction pads 30—to raise and lower a total load ranging from 14 to 60 kg for a curtain configuration having two or more curtain rod rings 16.
Reference is currently made to
Curtain rod ring 16 has a normally-closed configuration (as shown in the figures) when it is in position, serving to retain the curtain rod (as shown in
Reference is currently made to
Referring to
An alternate configuration of one of apparatus rod supports 6a (not shown in the current figures) includes only one wire spool pair 56, with the wire spool pair having a double-spool configuration and with the wire spool pair and the first wire spool mounted coaxially upon respective wire spool axes 57 as described hereinabove.
Additionally configured upon the bracket arm are a last wire spool 58, mounted at bracket arm end 54a and coaxially with last wire spool axis 59, the last wire spool axis being oriented substantially perpendicularly to bracket arm 54 and perpendicularly to wire spool axes 57. Last wire spool 58, two wire spool pairs 56, and first wire spool 55 are respectively oriented to guide the drive cables (not shown in the figure—but as shown in
Reference is currently made to
It will be appreciated that the above descriptions are intended only to serve as examples, and that many other embodiments are possible within the scope of the present invention and as defined in the appended claims.
Number | Name | Date | Kind |
---|---|---|---|
604656 | Fischer | May 1898 | A |
2476887 | Minarcik, Jr. | Jul 1949 | A |
8002243 | Murphy | Aug 2011 | B2 |
10973356 | Choi | Apr 2021 | B2 |
Number | Date | Country |
---|---|---|
104367152 | Feb 2015 | CN |
106724707 | May 2017 | CN |
106724709 | May 2017 | CN |
107669080 | Feb 2018 | CN |
108742089 | Nov 2018 | CN |
29714918 | Oct 1997 | DE |
4423490 | Mar 2001 | DE |
20018408 | Mar 2001 | DE |
1774999 | Apr 2007 | EP |
WO-2004098267 | Nov 2004 | WO |
Entry |
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Translation of CN106724709 (Year: 2017). |
Translation of CN104367152 (Year: 2015). |
Translation of DE20018408 (Year: 2001). |
Translation of CN106724707 (Year: 2017). |
Translation of DE29714918 (Year: 1997). |
Machine translation CN108742089 (Year: 2018). |
Machine translation CN107669080 (Year: 2018). |
Ben Yakas, “ Gothamist” on Oct. 1, 2011, entitled “Teen Fatally falls from Apartment Window in Curtain Hanging Accident”, https://gothamist.com/news/teen-fatally-falls-from-apartment-window-in-curtain-hanging-accident. |
Industrial Safety & Hygiene News (ISHN) on Jul. 6, 2017, https://www.ishn.com/articles/106830-000-falls-from- ladders-annually-97-percent-occur-at-home-or-on-farms. |
US Bureau of Labor Statistics, The Economics Daily, Apr. 25, 2022 “ Fatal injuries from ladders down in 2020; nonfatal adder injuries were essentially unchanged” https://www.bls.gov/opub/ted/2022/fatal-injuries-from-ladders-down- n-2020-nonfatal-ladder-injuries-were-essentially-unchanged.htm. |
Peter Simeonov, Mar. 13, 2017 in the Centers for Disease Control and Prevention (CDC) https://blogs.cdc.gov/ hiosh-science-blog/2017/03/13/ladder-safety-month/. |