HK1099187A - Roman style shade - Google Patents

Description

Technical Field of the Invention

This invention relates to an improved window covering. More particularly, this invention relates to an improved window covering having the general appearance of a Roman shade but having the ability to provide openings at different intervals.

Background of the Invention

One popular type of window covering is known as a Roman shade. This type of shade consists of a fabric material attached along its top edge to a head rail and gathered at spaced intervals to provide a series of soft folds across the face of the fabric. Consequently, the typical Roman shade has a cascaded or softly pleated appearance. Such Roman shades are constructed so that when they are raised, they gather from the bottom in generally horizontal folds or pleats until the entire shade resides near the top of the window covering. In some versions, the top of the window covering may also be lowered. The shades are operated by pulling on various lines which are used in conjunction with guides attached to the shade.

Most prior art Roman shades are formed either of a flexible material such as a fabric or of a plurality of panels, and are provided with a plurality of horizontal folds at points vertically spaced from one another to form the pleats when the shade is raised. A common method for making a Roman shade is to sew at least two sets of rings or connectors along vertical lines down the back of the fabric material such as is shown in U.S. Pat. No. 1,321,800 . A lift cord passes from the head rail through each set of rings and may either be fastened to the bottom edge of the fabric or loop around the bottom edge of the fabric up the front face of the fabric and return to the head rail. Alternatively, each set of connectors is both sewn to the fabric and attached to a cord at spaced apart intervals along the cord. The interval between spacers on each cord may be equal to or less than the distance between the points at which the spacers are attached to the back of the fabric.

One drawback to the typical Roman shade, however, is that there is no way to create openings in the overall face of the window covering if one wishes to permit light into a room, such as found in Venetian blinds by tilting the blind slats, without having to raise the bottom, or lower the top of the entire window covering, which undesirably results in a substantial loss of privacy. Therefore, it is desired to provide the ability to, similar to a Venetian blind, open gaps in the shade to allow light to pass, yet maintain a relatively high degree of privacy by not requiring the shade to be raised or lowered. The present invention also overcomes the shortcoming of the prior art by keeping ladder or other raising and adjustment mechanisms from view when the shade is closed.

US5787951 discloses a window shade according to the preamble of claim 1, and in particular discloses a Roman shade in which a rear sheet hangs from a head rail, and a number of front sheets are hung from the rear sheet. The rear sheet is raised by a raising cord to raise the entire shade, and the front sheets are raised by an opening cord to open the front sheets with respect to the rear sheet, the front sheets forming folds when raised.

Summary of the Invention

The present invention relates to a decorative covering suitable for use as a window shade having the features of claim 1. The decorative covering comprises a head rail with at least one securement member and at least a first opening member. The decorative covering also includes rows that are suspended from the head rail, and which are typically hung over a window as a shade.

The window covering preferably includes a plurality of securement members and a plurality of opening members suspended from the head rail. The securement members and opening members can take several forms, such as cords, narrow strips of material, a panel, or the like. Each of the plurality of securement members is restrainedly positioned with each of the plurality of rows at a first transverse margin or longitudinal region of the individual rows. Each of the rows also defines a plurality of row portions spaced in a transverse direction. Each of the rows is also connected to at least one opening member at a transverse margin or longitudinal region opposite that of the transverse margin or longitudinal region to which the securement members are restrainedly positioned, and to at least one of the row portions. A vertical adjustment mechanism is operatively connected to each of the opening members, which enables the opening member to be moved to open or close the spaced row portion of the rows restrainedly positioned therewith. A single adjustment mechanism can be operatively connected to all the opening members, or each of a plurality of opening members can be operatively connected only to certain opening members. In some examples, the securement members are also operatively connected with a vertical adjustment mechanism, and are movable to open or close the plurality of rows. The rows or row portions of the window covering can thereby be opened and closed through individual movement of the opening members or the securement member or a combination of both. In particular, the transverse margins or longitudinal portions of the rows are brought closer together to collapse the rows or are urged apart to extend the rows. For example, if the opening member is secured to the lower edge of the rows, when the opening member is retracted, the lower edge of each row is raised relative to the upper edge and drawn up behind the front of the row such that openings created in the face of the window covering permit light to pass. Extending the opening member through use of the vertical adjustment mechanism causes the lower edge of each row with which it is connected to lower relative to the upper edge and thereby close the gaps in the face of the window covering. In another example, the securement member mechanism may also be extended or retracted through use of a vertical adjustment mechanism such as described above. With the adjustable securement member, openings in the decorative covering can be controlled by extending and retracting the securement member as well. In the above example, the securement member can lower the upper edge of the rows to create gaps in the face of the decorative covering. It should be understood that both the securement member and the opening member can be adjusted as desired. In other words, either the securement member can be adjusted, or the opening member can be adjusted, or both of the securement and opening members can be adjusted to create openings in the decorative covering. It should further be understood that, in this example, the opening member and the securement member are capable of individual movement.

Restrained positioning of the rows with the securement member can be accomplished in several manners including, but not limited to, fixedly securing with adhesive, ultrasonic welding, knitting, tying or the like, or restricting the movement of the row relative to the securement member with a stop or other like restricting member. For example, the movement of the rows can be restricted by stop mechanisms positioned on the securement member. The opening member, which also connects the head rail and the rows, may be similarly restrainedly positioned.

The transverse margin or longitudinal regions to which the securement members are restrainedly positioned preferably are about either the upper and lower edges of the row, which extend across the width of the window shade. The opening member is restrainedly positioned about the opposite transverse margin or longitudinal regions. If desired, a rigid securement strip can be used to aid in restrainedly positioning the opening and securement members with the rows. Reinforcing strips can also be included along either or both of the opposed longitudinal regions.

Each of the plurality of rows may be comprised of fabric material, such as a single continuous fabric material or a plurality of fabric materials. The panels may also be formed from other materials such as wooden strips or slats. As discussed, each of the rows includes a plurality of spaced row portions, such as a first and a second side region. The first and second side regions may be of equal size, thereby forming a rectangular shape, or may be of different sizes, so as to form a tapered or substantially triangular shape. The rows may also include a stiffened transverse portion, such as by inclusion of a strip member with the first transverse margin, such as a lightweight plastic slat. A bottom rail may also be provided and suspended from the head rail, whereby the plurality of rows are located between the head rail and the bottom rail.

The vertical adjustment mechanisms that are operatively connected to the various opening members and, in some examples the securement members, maybe similar to mechanisms commonly found in Venetian blind systems for adjusting the position of cords, such as a worm gear assembly fitted within the head rail and manipulable by an operatively connected wand, whereby turning the wand causes, in this case, the opening member to be retracted. Alternatively, a cord lock assembly can also be utilized with the opening member to raise and lower the opening member. As yet another alternative, a power driven or remotely controlled vertical adjustment mechanism can also be utilized to retract or extend the opening member.

As discussed, each of the rows defines a plurality of row portions spaced in a transverse direction. In an example, each of the plurality of opening members is capable of substantially individually raising or lowering the row portion or row portions to which it is restrainedly position. For example, a particular row may include two row portions, such as including the edges of the row. An opening member is secured to each of these row portions. By raising one of the opening members, the row portion with which it is secured is opened substantially independent of the other row portion. In other words, one side of the row is raised, and the other side is not.

Another example of this feature of individually raising row portions is applied to the window shade where each of the rows has a substantially triangular or tapered shape, thereby, defining a major edge portion and a minor edge portion. In this window shade, it is preferred that the direction or orientation of the taper alternate from row to row. In so doing, the overall window covering created from the combination of similarly sized and shaped triangular rows is rectangular. A pair of opening members are provided. One of the cords extends down one side of the covering and is restrainedly positioned with every other row on a longitudinal portion about the less tapered or broader side region of the row. As mentioned, this less tapered or broader region defines a major edge portion of a row, and the narrower or more tapered side region of the rows defines a minor edge portion. The other opening member cord is positioned down the opposite side and is restrainedly positioned with the other rows about their respective major edge portions. The alternating rows define two sets of rows, namely, those rows facing in one direction are considered a first set of rows and those facing in the opposite direction are considered a second set of rows. Each set of rows may be individually opened or both sets of rows may be opened. When opened, the decorative covering provides a unique appearance that is unlike the window covering known in the art, which are typically parallel rows. Instead, the tapered or generally triangularly shaped rows, when raised, form a generally criss-crossing pattern.

Brief Description of the Drawings

In the drawings,

• FIGURE 1 is a perspective front view of a window covering in a closed positionpresent only to assist in the understanding of the present invention;
• FIGURE 2 is a perspective front view of the window covering of FIGURE 1 in a partially open position;
• FIGURE 3 is a perspective rear view of a row from the window covering of FIGURE 1;
• FIGURE 4 is a cross sectional view of the row of FIGURE 3;
• FIGURE 5 is an enlarged perspective view of a row with an alternate method of securing the row to the securement member, present only to assist in the understanding of the present invention;
• FIGURE 6 is an enlarged cross sectional view of FIGURE 5;
• FIGURE 7 is a perspective rear view of another row from a window covering, present only to assist in the understanding of the present invention;
• FIGURE 8 is a cross section view of the row of FIGURE 7;
• FIGURE 9 is a perspective rear view of another row comprising slats from a window covering, present only to assist in the understanding of the present invention;
• FIGURE 10 is a perspective view of FIGURE 9, with the slats partially retracted;
• FIGURE 11 is a perspective rear view of another row from a window covering, present only to assist in the understanding of the present invention;
• FIGURE 12 is a cross section view of the row of FIGURE 11; and
• FIGURE 13 is a perspective rear view of another row from a window covering, present only to assist in the understanding of the present invention;
• FIGURE 14 is a cross section rear view of the row of FIGURE 13;
• FIGURE 15 is a perspective rear view of another row from a window covering, present only to assist in the understanding of the present invention;
• FIGURE 15A is an enlarged partial view of FIGURE 15;
• FIGURE 16 is a perspective rear view of the row of FIGURE 15 with the opening member partially retracted;
• FIGURE 16A is an enlarged partial view of FIGURE 16;
• FIGURE 17 is a perspective rear view of the row of FIGURE 15 fully retracted;
• FIGURE 17A is an enlarged partial view of FIGURE 17;
• FIGURE 18 is a perspective schematic view of an embodiment of the window covering with tapered rows, according to the present claimed invention;
• FIGURE 19 is a perspective schematic view of the window covering of FIGURE 18 with individual rows opened;
• FIGURE 20 is a perspective schematic view of the window covering of FIGURE 18 with the overall window covering raised;
• FIGURE 21 is a partial rear view, partially in cross section, of the decorative covering of FIGURE 18;
• FIGURE 22 is a schematic rear view of another decorative covering, present only to assist in the understanding of the present invention;
• FIGURE 23 is a schematic rear view of the embodiment of FIGURE 22 a row portion raised;
• FIGURE 24 is a perspective view of another decorative covering, present only to assist in the understanding of the present invention;
• FIGURE 25 is a side elevated view of the decorative covering of FIGURE 24;
• FIGURE 26 is a cross sectional view of a row of FIGURE 24; and
• FIGURE 27 is a rear view of another a decorative covering, present only to assist in the understanding of the present invention, with a head rail depicted in phantom.

Description of the Preferred Embodiment of the Invention

The invention disclosed herein is susceptible of embodiment in many different forms. Shown in the drawings and described herein below in detail is a preferred embodiment of the invention. It is to be understood, however, that the present disclosure is an exemplification of the principles of the invention and does not limit the invention to the illustrated embodiment.

FIGURE 1 shows a perspective front view of a window covering in a closed position, present only to assist in the understanding of the present invention. Window shade 100 is shown in a closed position, and includes a head rail 102, a bottom rail 104, and a plurality of rows 106. Also preferably provided is an opening wand 108 for narrowing the profile of individual rows and thereby creating gaps or openings in the overall face of window shade 100, as well as a raising wand 110 for raising the entire shade 100.

In a fully closed state as shown in FIGURE 1, the window shade 100 offers an appearance free of connecting cords and provides both privacy and light blocking. If it is desired to allow light into a room without raising the entire shade, and thereby retaining a degree of privacy, a user can rotate the opening wand 108. As the opening wand 108 is rotated, each of the plurality of rows 106 is adjusted to narrow its profile by drawing a portion of the panel behind the face of the particular row such that gaps 111 in the window shade 100 are opened as shown in FIGURE 2. Although it is not shown in FIGURES 1 and 2, the vertical adjustment mechanism can be a cord lock as is readily available in the art which enables a person to adjust the position of the cords as desired. The particular procedure for opening each of the plurality of rows is discussed in further detail below.

Referring to FIGURES 3 and 4, the narrowing of the longitudinal profile of one of the plurality of rows from the window covering of FIGURES 1 and 2 is explained. In this example, a row 114 is formed of a single panel of fabric having an upper longitudinally extending region 116, a central longitudinally extending region 118, and a lower longitudinally extending region 120. The aggregate of the central region 118 for each of the rows forms the overall face of the window covering. As discussed above, each row may be comprised of multiple pieces of fabric. For example, the upper and lower longitudinally extending regions 116 and 120 could be formed of one type of fabric, whereas the central longitudinally extending region 118 could be a fabric of a different color, opacity, texture or the like.

Passed through the upper region 116 and the lower region 120 is a securement member, such as cord 122, which is secured to the upper region 116 by way of adhesive, ultrasonic welding, knitting, or the like. Cord 122 is passed through a hole 124 defined by the lower region 120, such that cord 122 is not secured to the lower region 120.

An opening member, such as cord 126 is also provided. Cord 126 is passed through hole 128 defined by the upper region 116, and is secured to lower region 120, also by way of adhesive, ultrasonic welding, knitting, or the like. Each of the plurality of rows is similarly secured to the cords 122 and 126. Alternatively, cords 122 and 126 may be passed through holes, but would include stops fixedly secured thereto so as to limit the cords from passing through the holes. For example, annular members such as washer shaped pieces that are positioned and fixed by pinching the annular member on the opening member and securement member can be utilized.

In this window covering, as opening member, such as cord 126, is retracted by way of a vertical adjustment mechanism (not shown) in the head rail 102 (FIGURE 1), which is operatively connected to the opening wand 108 (FIGURE 1), the lower region 120 is urged towards the upper region 116, which remains vertically stationary relative to the head rail. The collapsible row 114 is thus folded upon itself to present a narrower longitudinal profile. As shown in FIGURE 2, openings 111 are created in the plurality of rows to permit light through without requiring the raising or lowering of the entire window covering 100.

Referring again to FIGURES 3 and 4, a raising member, such as cord 130 for raising the bottom rail 104 and the plurality of rows 106 is also passed through holes 124 and 128 and secured to bottom rail 104. The raising member, such as cord 130, is operatively connected to raising wand 110 (FIGURE 1). Although only one set of cords 122, 126, and 130 is shown, it is preferred that two of sets of cords be provided which are equidistantly spaced from opposite edges of the window covering as can be seen in FIGURE 2.

Although not shown in the FIGURES, a reinforcing strip may also be included along either the upper longitudinally extending region, the lower longitudinally extending region, or both. This reinforcing strip may be comprised of a thin metal strip, plastic, reinforced material or the like secured to the upper or lower longitudinally extending regions, respectively. Such a reinforcing strip may be included with any of the examples disclosed herein.

As discussed above, the securement member and opening member can be restrainedly positioned with the plurality of rows in a variety of ways. Shown in FIGURES 5 and 6, present only to assist in the understanding of the invention, one example utilizes plastic strips. Similar to the example described in FIGURES 3 and 4, a row 214 is formed of a single piece of material having an upper longitudinally extending region 216, a central longitudinally extending region 218, and a lower longitudinally extending region 220. Passed through hole 228 in the upper region 216 and hole 224 in the lower region 220 is a securement member, such as cord 222. Similarly, opening member 226 is passed through hole 228 in the upper region 216 and hole 224 in the lower region 220. Formed with securement member 222 and opening member 226 are loops 223 and 227, respectively. Securement strips 232 and 234 that are preferably formed of plastic are passed through loops 223 and 227, respectively, and are positioned relative to the row 214 as depicted such that the downward movement of the row relative to the securement member 222 and opening member 226 are restricted. If desired, strips 232 and 234 can be fixedly secured to the row 214, such as by an adhesive.

FIGURES 7 and 8 show an alternative example, present only to assist in the understanding of the invention. In this example, the plurality of rows is comprised of a plurality of rigid slats. Such slats can be relatively wide slats as typically found in wooden Venetian blinds, or as shown, can be relatively narrow strips of decorative wood, such as wicker, rattan or bamboo. A plurality of relatively narrow strips of wood make up the plurality of rows such as row 314. An upper region 316 is provided with the plurality of wood strips, and defines a hole 328. The upper region can be comprised of a single strip or may be a number of strips. A lower region 320 can similarly be formed and also defines hole 324. Passed through the upper region 316 and the lower region 320 is a securement member 322, which is secured to the upper region 316 as described above, and is passed through hole 324 in the lower region 320 and is not secured to the lower region 320. An opening member 326 is passed through hole 328 and secured to lower region 320. A raising member 330 for raising the bottom rail and the plurality of rows as described above with the other examples is also passed through holes 324 and 328. Similar to the previous examples, a cord 326 is retracted such that lower region 320 is pulled towards upper region 316 to create gaps in the overall face of the window shade.

Shown in FIGURE 9 is an example present only to assist in the understanding of the invention,wherein each of the plurality of rows is comprised of slats, such as those typically found in wooden Venetian blinds. In this example, the row 340 is comprised of three slats, 342, 344, and 346, but more slats can be used. Securement member 348 is secured to slat 342 about an upper edge 349 by ring 352. Opening member 350 is secured to slat 346 also about a lower edge 351. In this particular example, rings 353 and 355 connect slats 342, 344, and 346. An additional ring 357 is secured to lowermost slat 346, to which opening member 350 is secured. Referring to FIGURE 10, as the opening member 350 is retracted, lowermost slat 346 is pulled upwards, which causes slats 342 and 344 to deflect and fold onto one another.

In each of the examples shown thus far, gaps in the face of the window shade, i.e., the open position, have been created by pulling the lower region of a row towards the upper region. It is contemplated, however, that gaps in the face of the window shade can also be created by lowering the upper region towards the lower region, which is held in place. An example of such a window shade is shown in FIGURES 11 and 12.

In this example, a row 414 is formed of a single piece of fabric having an upper longitudinally extending region 416, a central longitudinally extending region 418, and a lower longitudinally extending region 420. Passed through the upper region 416 and the lower region 420 is a securement member 422, which is fixedly secured to the lower region 420. Securement member 422 is passed through a hole 428 defined by the upper region 416, such that it is not secured to the upper region 416. An opening member is also provided, and is secured to upper region 416. In this example, as opening member 426 is extended by way of a vertical adjustment mechanism in the head rail, the upper region 416 is lowered towards the lower region 420, which is held substantially stationary relative to the head rail by the securement member 422. As such, the collapsible row 414 folds upon itself to present a narrower longitudinal profile. Similar to the previous examples, a raising member, such as cord 430 for raising the bottom rail and the plurality of rows is also passed through holes 424 and 428. A similar arrangement whereby the upper region is lowered to the lower region can be utilized in any of the configurations previously described. As discussed above, it is contemplated that the opening member and securement members may be interchangeable and each provide the ability to raise or lower the longitudinal portion respectively secured thereto.

In yet another alternative example, an additional facing can be included in order to provide both a face and back to the window covering that is free of visible cords or connectors when in the closed position. Referring to FIGURES 13 and 14, present only to assist in the understanding of the invention, row 514 is an example of a row that makes up a window covering with a uniform appearance from the face or back of the window covering.

Row 514 is formed of a piece of material having an upper longitudinally extending region 516, a central longitudinally extending face region 518, a central longitudinally extending back region 519 and a lower longitudinally extending region 520. The piece of material may be a single piece of material which is secured to itself to form a continuous piece of material. Alternatively, multiple strips of material can be secured together to form a panel. The multiple strips of material may be the same material, or may be materials having different characteristics, i.e., color, opacity, etc. As shown, row 514 defines a longitudinally extending cell 521.

Passed through the upper region 516 and the lower region 520 is a securement member 522, which is secured to the upper region 516. Securement member 522 is also passed through a hole 524 defined by the lower region 520, such that it is not secured to the lower region 520. An opening member 526 is also provided and is passed through hole 528 defined by the upper region 516, and is also secured to lower region 520. Each of the plurality of rows is similarly formed and secured to the securement member 522 and opening member 526. Preferably, members 522, 526 and 530 are positioned such that equal amounts of material are suspended on either side of the cords. As opening member 526 is retracted the lower region 520 is urged towards the upper region 516, which remains vertically stationary relative to the head rail. As such, cell 521 is collapsed upon itself by bringing the lower longitudinal portion behind the face 518 of the row, and presents a narrower longitudinal profile.

Another example is shown in FIGURES 15 and 15A, present only to assist in the understanding of the invention. In this example, window covering 600 is made of a plurality of rows, such as row 614. Each row is made of a plurality of slats, such as 616, 618, and 620. The row also defines a face (not shown), a rear 622, an uppermost region 624, and a lowermost region 626. As in other examples described above, a securement member 628 is restrainedly positioned with the uppermost region 624. An opening member 630 is also provided. In this example, the opening member 630 is comprised of a roll-up member 632 and lifting member 634. The uppermost region 624 defines a hole 627, through which the roll-up member 632 is passed. One end of the roll-up member 632 is connected to the lifting member 634. Preferably, secured to the lifting member 634 are a plurality of roll-up members, one for each row. The roll-up member is passed under the lowermost region 626 of row 614 and is secured to the face of the row 614 about a region adjacent to the lowermost region 626. For example, the roll-up member 632 is secured to the face about a top region of slat 620. As the lifting member 634 is raised, the roll-up member 632 is pulled through the hole 627 such that slat 620 is rolled up as shown in FIGURES 16, 16A, 17 and 17A. As such, gaps are created in the window covering.

Although shown with a row comprising a plurality of slats, the roll-up member can also be used with a row comprised of a fabric material. In order to lessen the visual effect of the roll-up member, it may be comprised of a material similar in color to the row. As shown, the roll-up member may also serve to limit the extent to which the row is extended such that a billowed appearance is achieved.

FIGURES 18-21 show an embodiment of the present invention. As shown in FIGURE 18, window covering 700 comprises a plurality of rows, such as rows 714 and 715. Each of rows 714 and 715 are tapered to form a substantially triangular shape. Rows 714 and 715 are adjacent to one another in the overall window covering 700 and are oriented such that the direction in which the rows taper alternates. Those rows oriented in the same manner as row 714 can be considered a first set of rows, and those with the orientation of row 715 a second set of rows. Opening members, which in this embodiment are shown as cords 726 and 728, are passed through vertical adjustment mechanisms, such as cord locks 702 and 704, respectively, in head rail 706. Securement members, including cord 724, are suspended from the head rail 706 and secured to lower longitudinal regions of the rows, such as lower longitudinal region 721 of row 715. When the opening members 726 and 728 are retracted, openings are created between the individual rows, such as 714 and 715, in the window covering 700 as shown in FIGURE 19. A rasing cord, such as cord 750 may also be included to raise the overall window covering 700 as shown in FIGURE 20. A more detailed explanation of the structure and operation of this embodiment is provided with reference to FIGURE 21.

Row 714 comprises an upper longitudinally extending region 716, a central longitudinally extending region 718, and a lower longitudinally extending region 720. Similarly, row 715 comprises an upper longitudinally extending region 717, a central longitudinally extending region 719, and a lower longitudinally extending region 721. As with several of the previous examples, and as shown previously in FIGURE 18, the aggregate of the central regions of the various rows forms the overall face of the window covering. As shown in FIGURE 21, rows 714 and 715, are in substantially abutting relationship with one another to minimize any opening in the window shade when the rows are fully extended.

Passed through the upper region 716 and the lower region 720 is a securement member, such as cord 722, which is secured to the upper region 716 about a first lateral edge region or major edge 730 of the row 714 by way of adhesive, ultrasonic welding, knitting, or the like. Cord 722 is passed through a hole 732 defined by the lower region 720, such that cord 722 is not secured to the lower region 720. A second securement member, such as cord 724 is also secured to the upper region 716, but is secured about a second lateral edge region or minor edge 734. In other words, the securement members, such as cords 722 and 724, are preferably evenly spaced from the edges of the decorative window covering 700 so the weight of the material is evenly distributed.

A first opening member, such as cord 726, is passed through hole 736 formed in the upper longitudinal region 716 and about the first lateral region or major edge 730 of row 714, and is secured to the lower longitudinal region 720. A second opening member, such as cord 728 is passed through hole 738 formed in the upper longitudinal region 716, as well as through hole 739 formed in the lower longitudinal region 720. As cord 726 is retracted, or pulled upwards, the lower longitudinal region 720 is drawn up towards the upper longitudinal region 716, thereby creating a gap between rows 714 and 715, and thus an opening in the decorative window covering 700.

Opening and closing row 715 is similarly done. Securement cord member 724 is secured to the upper longitudinal region 717 of row 715 about a first lateral edge region or major edge 740, and is passed through a hole 741 defined by the lower longitudinal region 721 of row 715 about the first lateral edge region 740. The other securement cord member 722 is also secured to the upper longitudinal region 717, and passed through hole 743 defined by the lower longitudinal region 721 of row 715 about a second lateral edge region 742. Opening cord member 728 is passed through hole 744 defined by the upper longitudinal region 717 and secured to the lower longitudinal region 721 about first lateral edge region or major edge 740. Opening cord member 726 is passed through hole 752 in the lower longitudinal region 721. As cord 728 is retracted or raised, the lower longitudinal region 721 to which cord 728 is secured is drawn up towards the upper longitudinal region 717, to create an opening in the covering 700.

In independently raising either opening member 726 or 728, the row portion comprising the major edges 730 or 740, respectively, are raised substantially independent of minor edges 734 and 742. In other words, as opening member 726 is raised and the portion of the row including major edge 730 is drawn upwards, the minor edge 734 is not similarly drawn upwards.

As with the previous examples, each of the opening members 726 and 728 may be retracted or extended as is known in the art. For example, cords may be pulled through a cord lock to the desired position as shown in FIGURE 18. Alternatively, a drum (not shown) in the head rail operatively connected to a wand may be used to wind or unwind cord. Preferably, opening members 726 and 728 are capable of being operated independently of one another.

In order to raise the overall window covering 700, a raising member, such as cord 750 is passed through the rows and secured to a lowermost row or preferably a bottom rail (not shown). When cord 750 is retracted, such as through pulling cord 750 through a cord lock mechanism, the rows of the overall window covering 700 are raised as shown in FIGURE 20.

Another example of the feature wherein the particular portions of a row are individually opened, present only to assist in the understanding of the invention, is explained with respect to FIGURE 22. In this example, row 770 is provided as an example. Row 770 defines a plurality of row portions, such as row portions 772, 774 and 776. To each of these row portions is secured an opening member, such as cords 778, 780, and 782, about the lower longitudinal region or transverse margin 784. Preferably, each of these opening members cords or individually movable. However, it may be desired to have certain row portions moved in concert with one another by having certain opening members be simultaneously controlled. Row 770 is also secured about the upper longitudinal region or transverse margin 786 to a pair of securement member cords 788. As shown in FIGURE 23, as opening member cord 782 is raised, cords 778 and 780 remain stationary, so that row portion 776 is raised substantially independent of row portions 772 and 774.

As in previous examples, rather than passing the cords through holes formed in the rows themselves, attachment members, such as rings can be utilized. Also, rather than securing the cords as discussed, the cords may be restrainedly positioned through any of the methods discussed above.

Shown in FIGURES 24-26 is an alternative example of the window covering, present only to assist in the understanding of the invention. The basic structure of this example is similar to that discussed above with respect to FIGURE 3. As shown in FIGURES 24 and 25, window shade 800, which is shown in a closed position, includes a head rail 802 and a plurality of rows comprising panels, such as rows 814 and 816. Also preferably provided is an opening cord 826 for narrowing the profile of the rows and thereby creating gaps or openings in the overall face of window shade 800. Also shown is a raising cord 810 for raising the entire shade 800. Window covering 800, however, includes an additional feature. Each of the rows of window covering 800, such as rows 814 and 816, have stiffened top portions 815 and 817, respectively.

There are various ways for providing the stiffened top portion of a row. These include using a non-woven fabric or slat, using a fabric adhered to the top portion, treating the top portion of the row with a stiffening agent, or the like. Use of a stiffened upper portion provides a unique aesthetic appearance to the decorative covering.

The incorporation of a slat is described in further detail in FIGURE 26 with respect to row 814 from FIGURE 24. As shown, row 814 comprises a strip of material 812 and a slat member 819. Strip 812 is folded over itself and slat member 819 is sandwiched between the overlapping portions of material 812. Slat member 819 may be fixedly positioned between the overlapping portion of 812 by way of an adhesive.

Passed through the upper region 815 and the lower region 820 of row 814 is a securement member, such as cord 822, which is secured to the upper region 815 by way of adhesive, ultrasonic welding, knitting, or the like. Securement cord 822 is passed through a hole 824 defined by the lower region 820, such that cord 822 is not secured to the lower region 820. An opening member, such as cord 826 is also provided. Cord 826 is passed through hole 828 defined by the upper region 815, and is secured to lower region 820, also by way of adhesive, ultrasonic welding, knitting, or the like.

One alternative feature that may be incorporated into any of the examples is the use of securement members that are independently operable. This is explained with reference to FIGURE 27, present only to assist in the understanding of the invention. Window covering 900 includes a plurality of rows, such as rows 914 and 916. Each of the rows, in this example of the window covering, is secured to a pair of opening members 926 and pair of securement members 922. The pair of opening members 926 are operatively connected to an adjustment mechanism shown schematically as 902. Similarly, the pair of securement members 922 are operatively connected to a second adjustment mechanism, such as that shown schematically as 904. As such, the securement members 922 and opening members 926 may be adjusted to raise or lower the transverse region of the rows to which they are secured individually.

The foregoing descriptions are to be taken as illustrative, but not limiting.

Claims (4)

1. A window shade comprising: a head rail (706), a plurality of collapsible rows (714, 715) suspended from the head rail, a plurality of securement members (722, 724), and a plurality of opening members (726, 728); each of the plurality of rows (714, 715) extending in a transverse direction and having an upper region (716, 717) and a lower region (720, 721); characterised in that:

   the plurality of securement members (722, 724) being restrainedly positioned with each of the plurality of rows (714, 715) at the upper region (716, 717) of each row (714, 715); each of the plurality of rows (714, 715) comprising a major edge portion (730, 740) and a minor edge portion (734, 742), wherein when each of the rows (714, 715) is in a closed position, the row tapers from the major edge portion (730, 740) to the minor edge portion (734, 742) thereof, adjacent ones among the plurality of rows (714, 715) tapering in alternate directions, the rows tapering in a same first direction forming a first set of rows (714), and the rows tapering in a same second direction forming a second set of rows (715); the plurality of rows (714, 715) further being respectively restrainedly positioned with the plurality of opening members (726, 728), the plurality of opening members (726, 728) including a first opening member (726) respectively secured to the lower regions (720) of the first set of rows (714) near the major edge portions (730) thereof, and a second opening member (728) respectively secured to the lower regions (721) of the second set of rows (715) near the major edge portions (740) thereof; and a first vertical adjustment mechanism (702) and a second vertical adjustment mechanism (704) operatively connected to the first and second opening members (726, 728) respectively, the first vertical adjustment mechanism (702) and the second adjustment mechanism (704) enabling the first and second opening members (726, 728) to open or close the first and second sets of rows (714, 715) restrainedly positioned therewith.
2. The window shade of claim 1, wherein each of the opening members (726, 728) is independently movable to narrow the plurality of rows (714, 715) secured thereto.
3. The window shade of claim 1 or 2, wherein at least one of the opening members (726. 728) and the securement members (722, 724) is a cord.
4. The window shade of any preceding claim, wherein a distance between the lower region (720, 721) and the upper region (716, 717) of each row (714, 715) defines a row width, the row width being adjustable by moving the lower region (720, 721) relative to the upper region (716, 717) and wherein the first opening member (726) and the securement members (722, 724) are adjustable to decrease the row width.