The present disclosure relates to a window treatments, and more particularly, to a motorized battery-powered window treatment (e.g., such as a venetian blind) having an adjustable valance.
Window treatments, such as, for example, roller shades, draperies, roman shades, and venetian blinds, are normally mounted in front of windows to provide for control of the amount of sunlight entering a space. A typical venetian blind system comprises a number of elongated slats extending along the width of the window and spaced apart vertically between a headrail and a bottom bar. The blind system typically comprises a lift cord that extends from the bottom bar through openings in the slats to the headrail and provides for lifting the bottom bar to raise and lower the slats. In a manual blind system, the end of the lift cord that is not attached to the bottom bar often hangs down from the headrail, such that a user may pull on the lift cord to raise and lower the slats. The blind system also typically comprises a tilt ladder that extends between the headrail and the bottom bar and operates to support and tilt the slats. Typical prior art manual blind systems include a rod that hangs from the headrail and may be rotated to adjust the tilt angle of the slats. The slats may be oriented substantially horizontal (i.e., perpendicular to the window) to allow sunlight to enter the space, and may be oriented substantially vertical (i.e., parallel to the window) to prevent sunlight from entering the space.
Some prior art Venetian blind systems have included a motor to provide for lifting and tilting the slats. Such motorized venetian blind systems typically comprise a single motor coupled to a drive shaft that extends across the width of the headrail. The drive shaft may have at least two drums for winding up the lift cords when the shaft is rotated by the motor. The tilt ladders are typically coupled to the drive shaft through frictional force, such that when the slats have been fully tilted in one direction, the ends of the tilt ladder slip by the drive shaft as the drive shaft is rotated. To adjust the tilt of the slats, the drive shaft may be rotated in the reverse direction, such that the frictional force between the tilt ladder and the drive shaft causes the ends of the tilt ladder to rotate.
As described herein, a motorized window treatment system (e.g., a motorized blind system) may comprise: a headrail; a covering material extending from the headrail; a battery compartment coupled to the headrail; a valance clip comprising a stationary portion coupled to the headrail and a movable portion configured to be coupled to the stationary portion such that the movable portion is movable from a first position to a second position; and a valance configured to be coupled to the movable portion of the valance clip. When the movable portion is in the first position, the valance may cover the battery compartment, and when the movable portion is in the second position, the battery compartment may be at least partially exposed. In addition, the motorized window treatment system may comprise a drive unit located in the headrail adjusting the covering material to control an amount of daylight entering a space (e.g., in which the motorized window treatment system is installed). The battery compartment may be configured to hold at least one battery for powering the drive unit.
For example, the motorized window treatment system may further comprise a bottom bar, and the covering material may comprise a plurality of rectangular slats spaced apart vertically between the headrail and the bottom bar. The motorized window treatment system may comprise a tilt ladder extending from the headrail to the bottom bar and operable to support the slats and to tilt the slats. The drive unit may be operably coupled to the tilt ladder for tilting the slats. The motorized window treatment system may comprise a lift cord extending from the headrail to the bottom bar to provide for raising and lowering the bottom bar. The drive unit may be operably coupled to the lift cord for winding and unwinding the lift cord to respectively raise and lower the bottom bar.
In addition, a valance clip for coupling a valance to a headrail of a window treatment system is disclosed herein. The valance clip may comprise a stationary portion configured to couple to the headrail, and a movable portion configured to couple valance and to the stationary portion such that the valance is movable from a first position to a second position. Further, the stationary portion may comprise a first leg coupled to the headrail and a second leg configured to be coupled to the movable portion.
A method for installing, removing, or replacing batteries of a window treatment system (e.g., such as a blind system) may comprise: (1) providing a blind system comprising a headrail, a valance clip having a stationary portion coupled to the headrail and a movable portion engaged with the stationary portion, and a valance coupled to the movable portion; (2) moving the valance and the movable portion of the valance clip with respect to the headrail and the stationary portion from a first position to a second position, wherein in the first position, the valance covers a battery compartment and, when in the second position, the battery compartment is at least partially exposed; (3) removing a first battery from the battery compartment; (4) inserting a second battery into the battery compartment; and (5) moving the valance and the movable portion of the valance clip from the second position to the first position.
A method of installing a window treatment system (e.g., such as a blind system) may comprise: (1) mounting a headrail of a window treatment system to structure (e.g., a window frame and/or a wall); (2) coupling a movable portion to a valance; and (3) engaging the movable portion with a stationary portion coupled to the headrail.
The features described herein will be more fully disclosed in the following detailed description, which is to be considered together with the accompanying drawings wherein like numbers refer to like parts and further wherein:
This description of the exemplary embodiments is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. The drawing figures are not necessarily to scale and certain features may be shown exaggerated in scale or in somewhat schematic form in the interest of clarity and conciseness. In the description, relative terms such as “horizontal,” “vertical,” “up,” “down,” “top” and “bottom” as well as derivatives thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing figure under discussion. These relative terms are for convenience of description and normally are not intended to require a particular orientation. Terms including “inwardly” versus “outwardly,” “longitudinal” versus “lateral” and the like are to be interpreted relative to one another or relative to an axis of elongation, or an axis or center of rotation, as appropriate. Terms concerning attachments, coupling and the like, such as “connected” and “interconnected,” refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. The term “operatively connected” is such an attachment, coupling or connection that allows the pertinent structures to operate as intended by virtue of that relationship.
In one aspect, the blind systems described herein allow for the simple and easy replacement of batteries without the removal of the blind system from the window. The decorative valance of the blind systems are easily movable from a first position in which they cover the batteries to a second position in which the batteries are accessible. This significantly simplifies maintenance of such motorized blind systems for end users. In another aspect, the blind systems described herein are configured to accommodate larger diameter batteries than prior art systems. These larger diameter batteries may have longer effective lives than batteries that are typically used in such systems and may also have the capability of powering larger drive mechanisms.
The blind system 110 may also comprise a drive unit 117 (e.g., a blind drive unit) located in the headrail 114 for adjusting the covering material of the blind system 110 to control the amount of daylight entering a space. For example, the drive unit 117 may comprise a motor (not shown) configured to raise and lower the bottom bar 116 and/or tilting the slats 112 to control the amount of daylight entering the space as will be described in greater detail below. In one embodiment, the drive unit 117 may be configured to independently control a position of the bottom bar 116 and a tilt angle of the slats 112, so as to control the amount of daylight entering the space in which the blind system 110 is installed. In other embodiments, the drive unit 117 may be configured to only control one or the other of the position of the bottom bar 116 or the tilt angle of the slats 112. For example, in various embodiments, the drive unit 117 may be configured to only control the tilt angle of the slats 112. In such embodiments, the position of the bottom bar 116 may be adjustable manually by a user. The drive unit 117 may be configured to receive a supply voltage, e.g., a direct-current (DC) supply voltage from a DC power supply, such as, for example, a battery (e.g., an alkaline battery, a nickel cadmium battery, a nickel metal hydride battery, a lithium ion battery, etc.). The drive unit 117 may include a wireless communication circuit, e.g., such as a radio-frequency (RF) receiver or transceiver, for receiving wireless signals (e.g., RF signals). The drive unit 117 may be configured to raise and lower the bottom bar 116 and/or tilt the slats 112 to control the amount of daylight entering a space in response to a command received via the wireless signals.
The blind system 110 may comprise two lift cords 118 positioned at the left and right ends of the slats 112 to provide for lifting the bottom bar 116. The blind system 110 may further comprise two tilt ladders 120 positioned at the left and right ends of the slats 112 to provide for tilting the slats 112. The slats 112 may extend across the width of the window that the blind system 110 (e.g., such that the blind system 110 may be capable of covering the window) and the slats 112 may be spaced apart equally between the headrail 114 and the bottom bar 116. Alternatively, the slats 112 may comprise curved slats rather than flat slats. The lift cords 118 may each extend from the headrail 114 to the bottom bar 116 through respective lift cord openings 122 in each of the slats 112. In embodiments that include motorized raising and lowering of the bottom bar 116, the drive unit 117 may be configured to wind and unwind the lift cords 118 to respectively raise and lower the bottom bar 116 between a fully-raised position PFR (e.g., as shown in
The tilt ladders 120 may each have a front band 124 (e.g., a front ribbon) and a rear band 126 (e.g., a rear ribbon) that extend parallel to each other from the headrail 114 to the bottom bar 116 adjacent to the lift cords 118. The front band 124 of the tilt ladders 120 may typically be positioned in front of the lift cords 118. Each tilt ladder 120 may also comprise a plurality of rungs (not shown) (e.g., bands or ribbons) that extend from the front band 124 to the rear band 126 between each pair of adjacent slats 112 of the blind system 110 to thus form a ladder. Accordingly, each of the slats 112 may rest on one of the rungs in each of the tilt ladders 120, such that the slats may be equally spaced apart vertically when the bottom bar 116 is in the fully-lowered position PFL. In embodiments in which the position of the bottom bar 116 is controlled by the drive unit 117, the front and rear bands 124, 126 may be coupled to the drive unit 117 in the headrail 114. As the drive unit 117 winds up the lift cord 118 to raise the bottom bar 116, the portions of the tilt ladders 120 between adjacent rungs may become slack as the raising bottom bar and accumulating slats 112 meet the next slat.
In some embodiments, the blind drive unit 117 may be configured to tilt the slats 112 by vertically moving the front and rear bands 124, 126 with respect to each other, such that the rungs, and thus the slats 112, are tilted at an angle with respect to the front and rear bands (e.g., a tilt angle ° BLIND). In such embodiments, the drive unit 117 may be configured to control the slats 112 to each be in a horizontal orientation to allow daylight to enter the space in which the blind system 110 is installed when the bottom bar 116 is at the fully-lowered position PFL or any intermediate positions between the fully-raised position PFR and the fully-lowered position PFL. The drive unit 117 may be configured to tilt the slats 112 approximately 90 degrees in each direction from the horizontal orientation, e.g., towards the front and towards the rear of the blind system 110, to control the slats 122 to a fully front-tilted position or to a fully rear-tilted position, respectively, to thus limit the amount of daylight entering the space. Alternatively, the front and rear bands 124, 126 and the rungs of the tilt ladders 120 could comprise cords. In addition, the motorized venetian blind system 110 could comprise additional lift cords 118 and tilt ladders 120 to accommodate longer slats 112 and bottom bars 116.
The drive unit 117 can include any appropriate components and, as mentioned above, can be configured to control the position of the bottom bar 116, the tilt angle of the slats 112, or both. For example, the drive unit 117 can be configured as described in U.S. Pat. Nos. 8,851,141; 9,115,537; and 9,488,000 and U.S. Patent Application Publication No. 2012/0073765, which are incorporated herein by reference in their entireties.
As shown, for example, in
In some embodiments, the blind system 110 may be configured to accommodate D-cell batteries, whereas prior art systems typically used, and could only accommodate, AA batteries. The larger D-cell batteries may provide a longer effective life than the smaller AA batteries. In addition, the D-cell batteries may be capable of powering larger drive components, such as motors.
As shown in
As shown in
The first leg 140 of the stationary portion 134 may be configured to couple to the headrail 114. For example, in one embodiment, the first leg 140 may include a first prong 146 and a second prong 148. The first 146 and second 148 prongs may define a cavity between them. The cavity may be configured to receive an inwardly curved portion 150 at the top of the rear upright 128 of the headrail 114. When the stationary portion 134 is assembled to the headrail 114, the cavity may receive the inwardly curved portion 150 to secure the stationary portion 134 to the headrail 114.
Further, in some embodiments, the first leg 140 may include a first portion 152 from which the prongs 146, 148 extend and a second portion 154. The second portion 154 may be vertically offset from the first portion 152 by a distance 156 (e.g., as shown in
In addition, in some embodiments, the stationary portion 134 (e.g., the angled portion 158) may further include an aperture configured to receive a fastener 162 (e.g., a screw). For example, the fastener 162 may be inserted through an aperture in the angled portion 158 such that the fastener 162 passes under the inwardly curved portion 160. In this way, the stationary portion 134 may be locked in place with respect to the headrail 114.
The second leg 142 of the stationary portion 134 may include a first notch 168 (e.g., as shown in
As shown best in
In some embodiments, as shown in
While in the illustrated embodiment the stationary portion 134 includes notches 168, 170 and the movable portion 136 includes teeth 184, 185 configured to engage the notches 168, 170, in other embodiments this arrangement may be reversed (e.g., the stationary portion 134 may include teeth and the movable portion 136 may include notches). In addition, in various embodiments, other forms of engagement (e.g., detents) may be used.
As shown, for example, in
In various embodiments, as shown in
As shown in
The movable portion 136 may be coupled to the stationary portion 134 with the first tooth 184 of the movable portion 136 engaged with the first notch 168. The protrusions 194 of the first and second arms 192, 193 may engage the rear face of the second leg 142 of the stationary portion 134 to maintain the engagement of the movable portion 136 and stationary portion 134.
The valance 138 may be coupled to the movable portion 136. The pin 191 of the movable portion 136 may be disposed in the tail 197 of the valance 138. As shown in the transition from
In some embodiments, the valance clips 132 and the valance 138 may be shipped as an assembled unit. In other embodiments, the blind system 110 may be provided as a kit and assembled by a consumer or technician at the time of installation of the blind system 110. While the movable portion 136 of the valance clip 132 and the valance 138 are described as being separate components that are joined together (e.g., via a dovetail connection), in other embodiments, the movable portions 136 may be integrated aspects of the valance 138 and the valance 138 and the movable portions 136 may be manufactured in one piece.
Another embodiment of a blind system is shown in
The blind system 210 shown in
The valance clips 232 and the valance 238 are shown in more detail in
As shown in
As shown in
As shown best in
As shown in
In some embodiments, the movable portion 236 may further include a detent 298 positioned next to the pin 291. The detent 298 may be configured to engage the tail 297 to prevent inadvertent rotation of the movable portion 236 with respect to the valance 238. In some embodiments, the detent 298 may extend from a flex arm 299 such that as the movable portion 236 is inserted in a horizontal orientation the flex arm 299 may flex backward. As the movable portion 236 is rotated, the flex arm 299 may return toward its natural, unstressed position such that the detent 298 may engage the tail 297. In some embodiments, the flex arm 299 may include a finger tab 299a extending back away from the valance 238. The user may use the finger tab 299a to flex the flex arm 299 and remove the detent 298 from the tail 297 such that the movable portion 236 may be rotated with respect to the valance 238 to remove the movable portion 236 from the valance 238.
In another embodiment, shown in
The movable portion 336 may include a slot 357. When the movable portion 336 and valance 338 are in the first position (e.g., as shown in
Like the movable portion 236 described above, the dovetail pin 391 may have a width less than the height of the tail 397 in the valance 338 such that the dovetail pin 391 may be inserted with the movable portion 336 oriented parallel to the longitudinal axis of the valance 338 and then rotated to lock the movable portion 336 in place with the valance 338.
In another aspect, illustrated in
In another aspect, as shown in
While the foregoing description and drawings represent preferred or exemplary embodiments of the present disclosure, it will be understood that various additions, modifications and substitutions may be made therein without departing from the spirit and scope and range of equivalents of the accompanying claims. In particular, it will be clear to those skilled in the art that the embodiments disclosed herein may be embodied in other forms, structures, arrangements, proportions, sizes, and with other elements, materials, and components, without departing from the spirit or essential characteristics thereof. One skilled in the art will further appreciate that the window treatment systems described herein may be used with many modifications of structure, arrangement, proportions, sizes, materials, and components and otherwise, used in the practice of the window treatment systems, which are particularly adapted to specific environments and operative requirements without departing from the principles disclosed herein. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope being defined by the appended claims and equivalents thereof, and not limited to the foregoing description or embodiments. Rather, the appended claims should be construed broadly, to include other variants and embodiments, which may be made by those skilled in the art without departing from the scope and range of equivalents. All patents and published patent applications identified herein are incorporated herein by reference in their entireties.
This application claims priority to U.S. Provisional Patent Application No. 62/886,071, filed Aug. 13, 2019, and entitled “Window Treatment Having an Adjustable Valance,” the entirety of which is incorporated by reference herein.
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Number | Date | Country | |
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20210047884 A1 | Feb 2021 | US |
Number | Date | Country | |
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62886071 | Aug 2019 | US |