Roller blind assembly

Abstract

A roller shade assembly (100) comprising a roller tube (204) including a first end (208) opposite a second end (212), the roller tube defining an opening extending longitudinally between the first end and the second end, and an idler assembly (300) partially received by the opening at the first end, the idler assembly including an idler housing (308), a plunger (220) received by the idler housing, and a biasing member (338) configured to apply a biasing force to the plunger, wherein the plunger is configured to slide relative to the idler housing, and the plunger is configured to selectively engage a bracket member.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 047,554, filed July 2, 2020, entitled “Roller Shade Assembly,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a cover for a building opening. More specifically, this disclosure relates to an improved roller blind and related components for selectively adjusting the position of the cover relative to the building opening. Summary of the Invention

[0004] In one example of an embodiment, the roller blind assembly includes: a roller tube having a first end opposite to a second end, the roller tube defining a longitudinally extending opening between the first end and the second end; and an idler assembly partially received at the first end by the opening, the idler assembly including an idler housing, a plunger received by the idler housing, and a biasing member configured to apply a biasing force to the plunger, wherein the plunger is configured to slide relative to the idler housing and is configured to selectively engage a support member.

[0005] In another example of the embodiment, the idler assembly includes an idler housing, a plunger received by the idler housing, and a biasing member configured to apply a biasing force to the plunger, wherein the plunger is configured to slide relative to the idler housing and is configured to selectively engage the support member.

[0006] In another example of the embodiment, the idler assembly includes an idler housing, a plunger received by the idler housing, and a biasing member configured to apply a biasing force to the plunger, wherein the plunger is configured to slide relative to the idler housing along an axis that defines the axis of rotation of the roller tube, and the plunger is configured to selectively engage the support member.

[0007] In another example of the embodiment, the idler assembly includes an idler housing, a plunger received by the idler housing, a biasing member configured to apply a biasing force to the plunger, and a timing ring coupled to the idler housing, the timing ring being configured to rotate relative to the idler housing and travel laterally along the idler housing. The idler housing may include a support collar defining a first stop member, and the timing ring may define a second stop member, wherein rotational movement of the timing ring relative to the idler housing in a first direction is restricted in response to the second stop member contacting the first stop member.

[0008] In another example of an embodiment, a spring assembly includes a housing, a shaft received by the housing, and a spring member connected at one end to the housing and at an opposite end to the shaft, the spring assembly received by a roller tube. A spring driver can include a drive shaft, the spring driver received by the roller tube. The spring assembly can be configured to interlock with an idler housing, the drive shaft of the spring driver can be configured to engage the shaft of the spring assembly, and the spring assembly can be configured to apply a counterbalancing force to the roller tube.

[0009] In another example of an embodiment, a first spring assembly includes a first housing, a first shaft received by the first housing, and a first spring member connected at one end to the first housing and at an opposite end to the first shaft, the first spring assembly received by a roller tube, a second spring assembly includes a second housing, a second shaft received by the second housing, and a second spring member connected at one end to the second housing and at an opposite end to the second shaft, the second spring assembly received by the roller tube, and a spring driver includes a drive shaft, the spring driver received by the roller tube. The first housing of the first spring assembly can be configured to interlock with an idler housing, the second shaft of the second spring assembly can be configured to engage the first shaft of the first spring assembly, and the drive shaft of the spring driver can be configured to engage the second shaft of the second spring assembly. The first spring assembly and the second spring assembly are each configured to apply a counterbalancing force to the roller tube, and the counterbalancing force generated by the first spring assembly and the counterbalancing force generated by the second spring assembly are arranged in parallel.

[0010] In another example of an embodiment, a first spring assembly includes a first housing, a first shaft received by the first housing, and a first spring member connected at one end to the first housing and at an opposite end to the first shaft, the first spring assembly received by a roller tube. A second spring assembly includes a second housing, a second shaft received by the second housing, and a second spring member connected at one end to the second housing and at an opposite end to the second shaft, the second spring assembly received by the roller tube. A series connection assembly includes a third housing and a third shaft, the series connection assembly connected to the first spring assembly and the second spring assembly. A spring driver includes a drive shaft, the spring driver received by the roller tube. The first housing of the first spring assembly is configured to interlock with an idler housing, the first shaft of the first spring assembly is configured to engage the third shaft of the series connection assembly, the second housing of the second spring assembly is configured to interlock with the third housing of the series connection assembly, and the drive shaft of the spring driver is configured to engage the second shaft of the second spring assembly. The first spring assembly and the second spring assembly are each configured to apply a counterbalancing force to the roller tube, and the counterbalancing force generated by the first spring assembly and the second spring assembly are arranged in series.

[0011] In another example of an embodiment, a brake assembly includes a brake shaft partially received by a brake housing, a brake cover coupled to the brake shaft, a plurality of brake surfaces carried by the brake shaft and received by the brake housing, and a brake force adjustment member partially received by the brake housing and in operable engagement with the plurality of brake surfaces. The brake cover can be configured to engage a roller tube. In response to rotation of the brake force adjustment member relative to the brake housing, a brake force applied by the plurality of brake surfaces to the roller tube can be adjusted.

[0012] Other aspects of the disclosure will become apparent by consideration of the detailed description and accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view showing one embodiment of a roller shade assembly separate from a building opening.

[0014] Figure 2 is Figure 1 is a partial exploded perspective view of the roller shade assembly of

[0015] Figure 3 is a perspective view of a portion of the roller shade assembly of Figure 1 along line 3-3 of Figure 1 is a perspective view of a portion of the roller shade assembly of

[0016] Figure 4 is a partial exploded perspective view of the roller shade assembly of Figure 1 wherein the cover assembly is removed and the roller tube assembly is separated from the opposing bracket member.

[0017] Figure 5 is an enlarged perspective view of a portion of the roller tube assembly and one bracket member taken along line 5-5 of Figure 4

[0018] Figure 6 is a perspective view of a portion of the roller tube assembly in engagement with one bracket member.

[0019] Figure 7 is a partial exploded view of the roller tube assembly with a covering for a building opening removed.

[0020] Figure 8 is a cross-sectional view of the roller tube taken along line 8-8 of Figure 7

[0021] Figure 9 is a perspective view of a first end of an idler assembly associated with the roller shade assembly of Figure 1

[0022] Figure 10 is​​​Figure 9 perspective view of a second end of the idler assembly opposite the first end.

[0023] Figure 11 Figure 9 plan view of the idler assembly of

[0024] Figure 12 Figure 9 partial exploded view of the idler assembly of

[0025] Figure 13 Figure 11 cross-sectional view of the idler assembly of Figure 9

[0026] Figure 14 plan view of the idler assembly of Figure 9

[0027] Figure 15 perspective view of the timing ring of the idler assembly of Figure 9

[0028] Figure 16 partial exploded perspective view of a first end of the spring tension assembly associated with the roller shade assembly of Figure 1

[0029] Figure 17 partial exploded perspective view of a second end of the spring tension assembly opposite the first end of Figure 16

[0030] Figure 18 perspective view of the spring assembly of the spring tension assembly of Figure 16

[0031] Figure 19 partial exploded perspective view of the spring assembly of Figure 18

[0032] Figure 20 cross-sectional view of the spring assembly taken along line 20-20 of Figure 18

[0033] Figure 21 perspective view of a drive collar for use with the spring tension assembly of Figure 16

[0034] Figure 22 cross-sectional view of an embodiment of the roller shade assembly of Figure 1

[0035] ​​​​​​​​​​​​​Figure 23 is a perspective view of a series connection assembly for use with a spring tension assembly associated with a roller shade assembly of Figure 1

[0036] Figure 24 is a cross-sectional view of the series connection assembly taken along line 24-24 of Figure 23

[0037] Figure 25 is a perspective view of a first end of a connector of the series connection assembly of Figure 23

[0038] Figure 26 is a perspective view of a second end of the connector of Figure 25 opposite the first end.

[0039] Figure 27 is a plan view of another example of an idler assembly associated with a roller shade assembly of Figure 1

[0040] Figure 28 is a cross-sectional view of the idler assembly of Figure 27 taken along line 28-28 of Figure 27

[0041] Figure 29 is a cross-sectional view of a portion of the idler assembly of Figure 27 shown within a roller tube assembly and engaged with a bracket member of Figure 3

[0042] Figure 30 is a perspective view of a first end of a brake assembly associated with a roller shade assembly of Figure 1

[0043] Figure 31 is a perspective view of a second end of the brake assembly of Figure 30 opposite the first end.

[0044] Figure 32 is a partial exploded view of the brake assembly of Figure 30

[0045] Figure 33 is a partial exploded view of the brake assembly of Figure 32 wherein the idler member and the ring bearing are removed for clarity.

[0046] Figure 34 is a partial exploded view of the brake assembly of Figure 33 wherein the plunger, the idler housing, and the biasing member are removed for clarity.

[0047] Figure 35 is a partial exploded view of the brake assembly of Figure 34 ​​​​​​​​A partial exploded view of the brake assembly, wherein the first housing portion has been removed for clarity.

[0048] Figure 36 yes Figure 35 A plan view of the brake assembly, in which the locating screw is separated from the brake housing.

[0049] Figure 37 yes Figure 36 A perspective view of the brake assembly.

[0050] Figure 38 It is shown as from Figure 37 A partial exploded view of the brake components, including the brake surfaces, bearings, and brake shaft, after they have been removed.

[0051] Figure 39 It is along Figure 31 The cross-sectional view of the brake assembly is taken from line 39-39.

[0052] Figure 40 This is a perspective view of a clutch assembly constructed for driving. Figure 2 Roller tube assembly.

[0053] Figure 41 It is along Figure 40 The line 41-41 is cut off Figure 40 An enlarged perspective view of a portion of the clutch assembly, illustrating the clutch housing, clutch sprocket, and continuous ring actuator.

[0054] Figure 42 yes Figure 41 An exploded view of said portion of the clutch assembly.

[0055] Figure 43 yes Figure 40 A perspective view of a clutch assembly aligned for use with... Figure 7 The idler wheel component of the brake assembly or idler wheel assembly shown is engaged.

[0056] Figure 44 yes Figure 40 A perspective view of the clutch assembly's hold-down device, shown in a first configuration in which the bore is misaligned and engages with a continuous ring actuator.

[0057] Figure 45 yes Figure 40 A perspective view of the clamping device of the clutch assembly, shown in a second configuration in which the holes are aligned to facilitate the operation of the continuous ring actuator.

[0058] Figure 46 It is used with Figure 40a perspective view of a chain deflector for use with the clutch assembly of Figure 2 separated from the bracket members of

[0059] Figure 47 is taken along line 47-47 of Figure 46 a perspective view of the chain deflector of Figure 46

[0060] Figure 48 is a perspective exploded view of an embodiment of a bracket assembly for use with the roller tube assembly of Figure 4

[0061] Figure 49 is a perspective view of the first bracket cover of the bracket assembly of Figure 48 Figure 48

[0062] Figure 50 is a perspective view of the bracket assembly of Figure 48 in a first assembled configuration decoratively covering the mounting brackets.

[0063] Figure 51 is a perspective view of another embodiment of a roller shade assembly shown separated from a building opening.

[0064] Figure 52 is a perspective view of a portion of the roller shade assembly of Figure 51 shown taken along line 52-52 of Figure 51

[0065] Figure 53 is a perspective view of the portion of the roller shade assembly of Figure 52

[0066] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the DETAILED DESCRIPTION

[0067] The present disclosure relates generally to a roller shade assembly 100 for selectively adjusting the position of a covering relative to a building opening. The roller shade assembly 100 includes a cover assembly 110 (shown), a bracket assembly 120 (shown), and a chain assembly 130 (shown). Figures 1-2 Figure 1 ​​​​​​​the roller tube assembly 200 (shown). Figure 2 and Figure 4 shown).

[0068] For ease of discussion and understanding, the following detailed description will refer to architectural openings. It should be understood that architectural openings can include any suitable opening in a building or other structure, such as a window, a door, a skylight, and / or an open-air opening. The detailed description will also refer to a window, which is provided as an example of an architectural opening, to facilitate understanding of one or more aspects of the present disclosure. The term window should be interpreted to include not only a window, but also any other suitable architectural opening that can be selectively covered using the innovations described herein.

[0069] Further, the detailed description refers to and illustrates a roller shade. It should be understood that a roller shade can include any type of shade or covering for an architectural opening that includes a roller tube. Accordingly, the term roller shade can include a roller shade, a shade, a louvered shade, a louvered transparent shade, or any other shade or covering for an architectural opening that includes a roller tube.

[0070] Referring to Figures 1 to 2 , the roller shade assembly 100 (or shade assembly 100) includes a cover assembly 110. The cover assembly 110 includes a decorative first cover 114 (or front cover 114 or front panel 114) and a plurality of decorative second covers 118 (or end covers 118 or end facia 118). The covers 114, 118 are configured to cover (or surround or partially enclose or decoratively conceal) operating components of the bracket assembly 120 and the roller tube assembly 200.

[0071] Referring to Figure 2 , the bracket assembly 120 includes a plurality of bracket members 122. In the illustrated embodiment, the bracket members 122 include a pair of bracket members 122 and are substantially identical. The bracket members 122 are oriented to face each other (i.e., one bracket member 122 is rotated one-hundred and eighty degrees (180°) relative to the other bracket member 122, or one bracket member 122 is a mirror image of the other bracket member 122). Each bracket member 122 includes a mounting portion 124 and a roller tube support portion 125. The pair of bracket members 122 can be referred to as a first bracket member 122 and a second bracket member 122.

[0072] Referring to Figure 3The mounting portion 124 includes a plurality of mounting members 126. In the illustrated embodiment, the mounting portion 124 includes three mounting members 126. Two of the mounting members 126 are positioned on opposite sides of the roller tube support portion 125 and are arranged parallel to one another. One of the mounting members 126 is positioned between the parallel mounting members 126 and is arranged perpendicular to the parallel mounting members 126. Each mounting member 126 is planar and includes at least one hole 127 (as shown) configured to receive a fastener (e.g., a nail, a screw, a bolt, etc.). The fastener is configured to selectively attach (or mount) each respective bracket member 122 relative to the architectural opening (e.g., to facilitate attachment within a perimeter of the architectural opening, attachment outside the perimeter of the architectural opening, attachment to a window frame, attachment to a wall or other structure outside the window frame, etc.). Figure 2

[0073] Referring back to Figures 2 to 3 , a mounting clip 128 (or mounting member 128 or faceplate clip 128) is coupled to each bracket member 122. With particular reference to Figure 3 , the mounting clip 128 is coupled to an end of one of the mounting members 126. The first cover 114 is then configured to be removably attached to the bracket member 122. The first cover 114 includes a first longitudinal rib 129a spaced apart from a second longitudinal rib 129b. The ribs 129a, 129b extend longitudinally along the first cover 114 between the opposing bracket members 122. The first rib 129a defines a hook portion configured to engage one end of each mounting member 126. The second rib 129b defines a hook portion configured to engage the mounting clip 128 coupled to the second, opposite end of each mounting member 126. The second rib 129b can also be biased to engage the mounting clip 128.

[0074] Referring back to Figure 2 , the second cover 118 is configured to be fastened to the respective bracket member 122. As shown, each second cover 118 is fastened by a fastener 129, which is depicted as a strip of double-sided tape. In other embodiments, any fastener (e.g., a tack, a nail, a screw, etc.) or adhesive (e.g., tape, glue, etc.) suitable for fastening the cover 118 to the bracket member 122 can be used. The cover 118 is oriented to cover (or overlap) the respective bracket member 122 to decoratively cover a portion of the bracket member 122 including the roller tube support portion 125.

[0075] Referring now to Figures 4 to 5 , the roller tube assembly 200 is configured to engage the bracket member 122 of the bracket assembly 120. Each bracket member 122 defines a hole 130 in the roller tube support portion 125. As Figure 5 ​As shown, the hole 130 includes a plurality of radial members 134 (or radial fingers 134) positioned around a perimeter of the hole 130 and extending into (or protruding into) the hole 130 from the bracket member 122. Each radial member 134 is spaced apart from an adjacent radial member 134 by a distance to form a sawtooth (or zigzag) profile. The hole 130 also includes at least one protrusion 138. In the illustrated embodiment, the hole 130 includes a pair of protrusions 138. However, in other embodiments, the hole 130 can include a single protrusion 138 or three or more protrusions 138. The protrusions 138 can be biased and configured to move (or pivot) relative to the bracket member 122.

[0076] The roller tube assembly 200 includes a roller tube 204 (as shown) and a cover 216 (or shade 216 or architectural cover 216) coupled to the roller tube 204. The roller tube 204 includes a first end 208 opposite a second end 212 (as shown). The cover 216 is configured to be wound onto the roller tube 204 when the roller tube 204 is rotated in a first direction or unwound from the roller tube 204 when the roller tube 204 is rotated in a second direction opposite the first direction. The cover 216 is configured to selectively cover (or overlap) an architectural opening to, among other things, limit light penetration, protect an interior area from sunlight, and / or provide privacy. Figure 5 Figure 4 The roller tube assembly 200 includes a roller tube 204 (as shown) and a cover 216 (or shade 216 or architectural cover 216) coupled to the roller tube 204. The roller tube 204 includes a first end 208 opposite a second end 212 (as shown). The cover 216 is configured to be wound onto the roller tube 204 when the roller tube 204 is rotated in a first direction or unwound from the roller tube 204 when the roller tube 204 is rotated in a second direction opposite the first direction. The cover 216 is configured to selectively cover (or overlap) an architectural opening to, among other things, limit light penetration, protect an interior area from sunlight, and / or provide privacy.

[0077] The plunger 220 protrudes from each end of the roller tube 204 and is configured to selectively engage a respective bracket member 122. Referring to Figure 5 , the plunger 220 defines a substantially hollow interior passage 222 and an access hole 223. A plurality of members 224 (or protrusions 224 or projections 224) extend (or protrude) radially outwardly from the plunger 220 and around an outer perimeter of the access hole 223. The members 224 are spaced apart around the plunger 220 and spaced apart from adjacent members 224 by a distance to form a sawtooth (or zigzag) profile. In the illustrated embodiment, eight members 224 are shown extending radially outwardly from the plunger 220. In other embodiments, the plunger 220 can include fewer than eight members 224, more than eight members 222, or any suitable number of members 224.

[0078] The sawtooth profile of the plunger 220 is complementary to the sawtooth profile of the hole 130 defined by the bracket member 122. As such, the plunger 220 is configured to be received and retained by the hole 130 of the bracket member 122. Referring to Figure 6 ​The plunger 220 is shown engaged with the cradle member 122. More specifically, the plunger 220 is received by the aperture 130 and forms an interlocking (or interference) engagement with the aperture 130 of the cradle member 122. When the plunger 220 is received by the aperture 130, each member 224 also defines an undercut portion 228 on a face of the member 224 that faces the cradle assembly 120. The undercut portion 228 provides additional resistance to removal (or pulling out) of the plunger 220 from the aperture 130 in response to a vertical load on the roller tube assembly 200 (or a load applied in a direction that is inclined (or perpendicular) relative to an axis defined by the roller tube 204 and parallel to the plunger 220). One or more of the radial members 138 can engage the undercut portion 228 such that the undercut portion 228 can partially define a groove. A forced downward force (e.g., gravity, etc.) applied to the roller tube 204 and associated plunger 220 can help to receive the one or more radial members 138 into the undercut portion 228 (or the groove partially defined by the undercut portion 228). Thus, the undercut portion 228 defines an anti-slip resistance to help maintain engagement of the plunger 220 with the aperture 130 and reduce the risk of accidental disengagement. Further, it should be appreciated that although the plunger 220 is shown as being engaged with the cradle member 122 on the first end 208 of the roller tube 204, the components and functionality are identical on the second end 212 of the roller tube 204. Figures 4 to 6 The plunger 220 is shown engaged with the cradle member 122. More specifically, the plunger 220 is received by the aperture 130 and forms an interlocking (or interference) engagement with the aperture 130 of the cradle member 122. When the plunger 220 is received by the aperture 130, each member 224 also defines an undercut portion 228 on a face of the member 224 that faces the cradle assembly 120. The undercut portion 228 provides additional resistance to removal (or pulling out) of the plunger 220 from the aperture 130 in response to a vertical load on the roller tube assembly 200 (or a load applied in a direction that is inclined (or perpendicular) relative to an axis defined by the roller tube 204 and parallel to the plunger 220). One or more of the radial members 138 can engage the undercut portion 228 such that the undercut portion 228 can partially define a groove. A forced downward force (e.g., gravity, etc.) applied to the roller tube 204 and associated plunger 220 can help to receive the one or more radial members 138 into the undercut portion 228 (or the groove partially defined by the undercut portion 228). Thus, the undercut portion 228 defines an anti-slip resistance to help maintain engagement of the plunger 220 with the aperture 130 and reduce the risk of accidental disengagement. Further, it should be appreciated that although the plunger 220 is shown as being engaged with the cradle member 122 on the first end 208 of the roller tube 204, the components and functionality are identical on the second end 212 of the roller tube 204.

[0079] Reference is now made to Figure 7 The roller tube assembly 200 is shown with the cover 216 removed. The roller tube assembly 200 is also shown partially disassembled. The roller tube assembly 200 includes a idler assembly 300, a spring tension assembly 400, and a brake assembly 600. The idler assembly 300 and the spring tension assembly 400 are configured to be received in the first end 208 of the roller tube 204. The brake assembly 600 is configured to be received in the second end 212 of the roller tube 204. The idler assembly 300 is also configured to engage the spring tension assembly 400.

[0080] Figure 8A cross-sectional view of the roller tube 204 is shown. The roller tube 204 defines a central opening 232 extending longitudinally within the roller tube 204. A plurality of longitudinal ribs 236 extend from the roller tube 204 and into the opening 232. The illustrated roller tube 204 includes four pairs of ribs 236. The ribs 236 and the roller tube 204 define a plurality of engagement zones 240. Each engagement zone 240 is defined between adjacent (or consecutive) ribs 236. The engagement zones 240 provide areas for components of the idler assembly 300, the spring tension assembly 400, and the brake assembly 600 to engage with the roller tube 204 (and more specifically, with the ribs 236 defining each engagement zone 240). The engagement zones 240 include first engagement zones 240a and second engagement zones 240b. The first engagement zones 240a are disposed between consecutive (or adjacent) pairs of ribs 236, while the second engagement zones 240b are disposed between the ribs 236 of each pair of ribs 236. In the illustrated embodiment, the first engagement zones 240a are larger (or longer) than the second engagement zones 240b.

[0081] Referring now to Figures 9 to 13 , the idler assembly 300 is shown in greater detail. The idler assembly 300 includes an idler member 304, an idler housing 308, and a timing ring 312. The idler member 304 is coupled to the idler housing 308 and is configured to rotate relative to the idler housing 306. Referring specifically to Figure 12 , the idler housing 308 includes an annular bearing 316 (or ring bearing 316 or bearing 316) positioned about the housing 308. The annular bearing 316 engages the idler member 304 (or is otherwise coupled to the idler member 302). More specifically, the annular bearing 316 is received by a corresponding annular groove 320 positioned on an inner surface of the idler member 304. While the illustrated annular groove 320 is depicted as a plurality of grooves extending about a portion of the inner surface of the idler member 304, in other embodiments, the annular groove 320 can extend continuously about the inner periphery of the idler member 304, or can include a plurality of annular groove portions extending about the inner periphery of the idler member 304. The idler member 304 is configured to freely rotate relative to the idler housing 308 through the annular bearing 316.

[0082] Referring to Figures 9 to 10 , the idler member 304 defines a plurality of protrusions 306 (or members 306). The protrusions 306 are positioned about an outer periphery of the idler member 304. The protrusions 306 are configured to engage corresponding engagement zones 240 within the roller tube 204. More specifically, each protrusion 306 is configured to engage a corresponding first engagement zone 240a. This facilitates the rotatable connection between the roller tube 204 and the idler member 304 such that they rotate together.

[0083] The timing ring 312 is also coupled to the idler housing 308 and is configured to rotate relative to the idler housing 306. Referring specifically toFigure 12 The idler housing 308 includes a thread 324 (or screw thread 324 or first thread 324) that is wrapped around a cylindrical portion of the idler housing. The thread 324 is a straight thread and defines a helical thread arrangement on the idler housing 308. Referring to Figure 15 The timing ring 312 includes a corresponding thread 328 (or timing ring thread 328 or timing thread 328 or second thread 328). The timing ring thread 328 extends around the inner periphery of the timing ring 312. The thread 328 is helical in shape. In the illustrated embodiment, the thread 328 is a single thread (or extends around the inner periphery of the timing ring 312 approximately once). In other embodiments, the thread 328 can extend multiple times around the inner periphery of the timing ring 312. The thread 328 of the timing ring 312 is configured to engage with the thread 324 of the idler housing 308. The timing ring 312 also defines a plurality of protrusions 330 (or members 330). The protrusions 330 are positioned around the outer periphery of the timing ring 312. The protrusions 330 are configured to engage the corresponding engagement regions 240 within the roller tube 204. More specifically, each protrusion 330 is configured to engage a corresponding second engagement region 240b. This facilitates the rotatable connection between the roller tube 204 and the timing ring 312 such that they rotate together.

[0084] As the timing ring 312 rotates with the roller tube 204, the timing ring travels in a lateral direction (or horizontally) along the idler housing 308. This lateral travel is in response to the engagement of the timing ring thread 328 with the thread 324 on the idler housing 308. Thus, as the timing ring 312 rotates relative to the idler housing 308, the timing ring 312 traverses the idler housing 308 and further travels laterally within (or along) the roller tube 204. For example, in response to the rotation of the timing ring 312, the timing ring 312 travels laterally along each channel that defines the second engagement regions 240b of the roller tube 204. The direction of travel is in response to the direction of rotation of the timing ring 312 (e.g., rotation of the timing ring 312 in a first direction causes the timing ring 312 to travel in a first direction relative to the idler housing 308, rotation of the timing ring 310 in a second direction opposite the first direction causes the timing ring 310 to travel in a second direction opposite the first direction relative to the idler housing 308, etc.).

[0085] Referring to Figure 12 and Figure 14 The idler housing 308 includes a support collar 332. The support collar 332 is provided to limit the disengagement of the timing ring 312 from the idler housing 308. In other words, the support collar 332 facilitates maintaining the timing ring 312 in engagement with the idler housing 308. The support collar 332 defines a first stop member 336. Referring to Figure 15The timing ring 312 defines a second stop member 340. The first stop member 336 is a surface configured to engage a surface of the second stop member 340. In response to the stop members 336, 340 contacting one another, rotation of the timing ring 312 is limited in a corresponding rotational direction.

[0086] With specific reference now to Figure 14 The threads 324 on the idler housing 308 include a first thread region 325 separate from a second thread region 326. The first thread region 325 is defined by threads 324 spaced apart by a first distance Dl, as measured between the peak tops of adjacent threads 324. The second thread region 326 is defined by threads 324 spaced apart by a second distance D2, as measured between the peak tops of adjacent threads 324. The second distance D2 is greater than the first distance Dl. More specifically, the second distance D2 is about four times greater than the first distance Dl. As a non-limiting example, the first distance Dl is about 0.8 mm, while the second distance D2 is about 3.2 mm. In other embodiments, the distances Dl and D2 can be any suitable or desired distances. In the illustrated embodiment, the second thread region 326 includes a single thread turn around the threads 324 of the idler housing 308, which facilitates engagement of the stop members 336, 340 of the timing ring 312 and the support collar 332.

[0087] Referring now to Figure 13 The plunger 220 is slidably received and retained by the idler housing 308. The idler housing 308 defines an internal passage 334 that slidably receives the plunger 220 through a first end 336 of the idler housing. A biasing member 338 is received by and retained in the internal passage 334. The biasing member 338, shown as a spring 338, is in operative communication with the internal passage 334 and the plunger 220. More specifically, the biasing member 338 extends from the internal passage 334 of the idler housing and into the internal passage 222 of the plunger 220. The biasing member 338 is configured to apply a biasing force to the plunger 220. Accordingly, the plunger 220 is configured to be biased along a direction parallel to the roller tube 204 (or defined by the roller tube 204) Figure 7The plunger 220 slides laterally along axis 342 (as shown). The plunger 220 slides along axis 342 in a first direction (or away from the idler housing 308, or away from the roller tube 204) in response to a biasing force applied to the plunger 220 by biasing member 338. Alternatively, the plunger 220 slides along axis 342 in a second direction (or toward the idler housing 308 or into the roller tube 204) in response to an external force applied to the plunger 220 sufficient to overcome the biasing force applied by biasing member 338. An example of this external force may include a user's (or installer's) fingers pressing the plunger 220 into the idler housing 308. It should be understood that axis 342 defined by roller tube 204 may be the axis of rotation of roller tube 204 (or parallel to the axis of rotation of roller tube 204).

[0088] It should be understood that the geometry of the plunger 220's stroke (or plunger travel) and the timing ring 312's travel relative to the idler housing 308 offers certain advantages. For example, the thread 324 on the idler housing 308 overlaps with the internal channel 334 defined by the idler housing 306. Therefore, the thread 324 overlaps with the plunger travel. This helps reduce the overall size of the idler assembly 300. In addition to allowing installation and use in larger roller blinds, this compact design also allows installation and use in smaller roller blinds (e.g., roller blind diameter, length of the building opening and corresponding shroud, and / or width of the building opening and corresponding shroud, etc.).

[0089] refer to Figure 10 The idler housing 308 and the first end 336 (e.g.) Figure 9 and Figure 13 (As shown) The opposite second end 343 defines a first locking member 346. The idler housing 308 defines an opening 348 (or hole 348). The first locking member 346 includes a plurality of alternating protrusions 350 and recesses 354 positioned around the inner periphery of the opening 348. The first locking member 346 is configured to engage a corresponding second locking member 456 defined by the spring tensioning assembly 400, which will be discussed in further detail below. The first locking member 346 is shown as being defined on the inner periphery of the idler housing 308. In other embodiments, the first locking member 346 may be defined on the outer periphery of the idler housing 308.

[0090] refer to Figures 16 to 17 The image shows a partial exploded perspective view of the spring tensioning assembly 400. The spring tensioning assembly 400 includes at least one spring assembly 404 and a spring actuator 408 (or tube adapter 408). The spring tensioning assembly 400 is configured to apply a counteracting force (or balance the roller shutter).

[0091] Now for reference Figures 18-20The spring assembly 404 includes a housing 412, an end cap 416, a shaft 420, and a biasing member 424 (or spring member 424). Reference Figures 18 to 19 End cap 416 is fastened to housing 412. In the illustrated embodiment, end cap 416 is fastened to housing 412 by acoustic welding. In other embodiments, end cap 416 can be fastened to housing 412 by any suitable fastener (e.g., adhesive, interlocking connection, etc.). End cap 416 defines a hole 428 that receives a first end 432 of shaft 420 (or spindle 420). Housing 412 defines a hole 434 (… Figure 20 As shown, the hole 434 receives the second end 436 of the shaft 420. The shaft 420 is configured to rotate relative to the housing 412 and relative to the end cap 416. In other words, the shaft 420 is configured to rotate relative to the housing assembly 438. The housing assembly 438 includes the housing 412 and the end cap 416.

[0092] The housing 412 defines a slot 440. The slot 440 is positioned to extend through a portion of the outer periphery of the housing 412. The slot 440 receives a first end 444 of a biasing member 424. A second end 448 of the biasing member 424 is received by a slot 452 in the shaft 420 (e.g., ...). Figure 20 (As shown). In the illustrated embodiment, the biasing member 424 is a helical spring 424 (or a roller spring 424). The helical spring 424 can extend from slot 440 to slot 452. Between slots 440 and 452, the helical spring 424 can extend around the inner periphery of the housing 412 at least once, and more particularly multiple times. In other embodiments, the biasing member 424 can be any type of spring or device that applies a biasing force to the shaft 420, thereby constraining (or limiting) rotation of the shaft 420 relative to the housing assembly 438.

[0093] like Figure 16 and Figure 18As shown, the housing assembly 438 defines a second locking member 456. More specifically, the end cap 416 defines the second locking member 456. The second locking member 456 defines a plurality of alternating protrusions 460 and recesses 464 positioned about an outer periphery of the aperture 428. The second locking member 456 is configured to engage the first locking member 346 in a keyed (or interlocking) connection. In the illustrated embodiment, the second locking member 456 is configured to be received by the first locking member 346. Each protrusion 460 of the second locking member 456 is received by a corresponding recess 354 of the first locking member 346, while each protrusion 350 of the first locking member 344 is received by a corresponding recess 464 of the second locking member 456. The interlocking connection (or keyed connection) formed between the first locking member 346 and the second locking member 456 facilitates the connection between the spring tension assembly 400 and the idler assembly 300, and more specifically, the connection between the spring assembly 404 and the idler housing 308. In addition to the interlocking connection, the spring assembly 404 and the idler housing 308 can be secured to one another by at least one fastener 359 (e.g., a screw, a bolt, etc.), a representative fastener 359 is shown in the middle. Each fastener 359 can be received by aligned (or overlapping) fastener apertures 358, 468 positioned in the idler housing 308 (see Figure 17 ) and the spring assembly 404 (see Figure 14 ), respectively. Figure 18

[0094] The second locking member 456 is positioned on a first side 472 (or first end 472) of the spring assembly 404 (see Figure 16 ). The spring assembly 404 includes a second side 476 (or second end 476) opposite the first side 472 (see Figure 17 ). Referring back to Figure 17 , on the second side 476, the housing assembly 438 defines the first locking member 346. More specifically, the housing 412 defines the first locking member 346. It should be appreciated that the first locking member 346 on the spring assembly 404 is substantially identical to the first locking member 346 on the idler housing 308, and includes identical components (e.g., alternating protrusions 350 and recesses 354, fastener apertures 358, fasteners 359, etc.) to facilitate keyed (or interlocking) engagement with another component having a complementary second locking member 456.

[0095] Referring back to Figures 16 to 17 ​The spring driver 408 (or tube adapter 408) includes a housing 480 that defines a plurality of protrusions 482 (or members 482). The protrusions 482 are positioned around an outer periphery of the housing 480 of the spring driver 408. The protrusions 482 are configured to engage corresponding engagement regions 240 within the roller tube 204. More specifically, each protrusion 482 is configured to engage a corresponding first engagement region 240a. This facilitates the rotatable connection between the roller tube 204 and the spring driver 408 such that they rotate together.

[0096] Referring to Figure 16 The spring driver 408 also includes a receptacle 484. The receptacle 484 is defined by a wall 486 and includes a drive shaft 488 (or shaft 488) positioned in the receptacle 484. The drive shaft 488 is fastened to (or formed with) the housing 480 of the spring driver 408. The drive shaft 488 does not rotate relative to the housing 480. In other words, the housing 480 and the drive shaft 488 rotate together, or the drive shaft 488 rotates with the housing 480. The drive shaft 488 is configured to interlock with (or engage) the shaft 420 of the spring assembly 404. More specifically, an end of the drive shaft 488 is configured to interlock with (or engage) an end of the shaft 420 of the spring assembly 404. To facilitate the interlocking connection, the drive shaft 488 defines a first coupling portion 490 and the shaft 420 defines a second coupling portion 494 (see Figure 17 ). The first coupling portion 490 and the second coupling portion 494 are keyed to interlock (or axially interlock). The first coupling portion 490 and the second coupling portion 494 can together form a pawl interlocking coupling, or any other suitable axially keyed interlocking coupling. The interlocking coupling is configured to transfer rotational forces (or torque) from the drive shaft 488 to the shaft 420 to facilitate responsive rotation of the shaft 420 relative to the housing assembly 438.

[0097] Referring to Figures 16 to 17 When the first coupling portion 490 and the second coupling portion 494 interlock to form the axial coupling, the receptacle 484 receives a portion of the housing assembly 438 of the spring assembly 404. More specifically, the receptacle 484 of the spring driver 408 receives the first locking member 346 and the associated wall 495 surrounding the first locking member 346. This allows the spring driver 408 to rotate relative to the housing assembly 438 of the spring assembly 404 while facilitating rotation of the shaft 420 of the spring assembly 404.

[0098] In Figure 7In the illustrated embodiment of the roller tube assembly 200, the spring tensioning assembly 400 includes a single spring assembly 404. As discussed above, a first side 472 of the spring assembly 404 is coupled to the idler assembly 300, and more particularly to the idler housing 308. A second side 476 of the spring assembly 404 is coupled to the spring driver 408. While a single spring assembly 404 can be suitable for operation of certain roller shades, in other embodiments, the spring tensioning assembly 400 can include multiple spring assemblies 404. For example, roller shades having a shade with a large diameter (for covering a large or tall architectural opening) or a roller tube with a long length (for covering a wide architectural opening) can require more than one spring assembly 404.

[0099] The spring tensioning assembly 400 can include at least one drive collar 496. For example, in embodiments where the spring tensioning assembly 400 has multiple spring assemblies 404, the spring tensioning assembly 400 can include at least one drive collar 496. As illustrated, the drive collar 496 includes a central aperture 497 and a plurality of protrusions 498. The plurality of protrusions 498 (or members 498) are positioned around an outer periphery of the drive collar 496. The protrusions 498 are configured to engage corresponding engagement regions 240 within the roller tube 204. More particularly, each protrusion 498 is configured to engage a corresponding first engagement region 240a (see FIG. 4). This facilitates a rotatable connection between the roller tube 204 and the drive collar 496 such that they rotate together. The drive collar 496 can also define a radial aperture 499 (or passage 499). The aperture 499 can provide a passageway to insert (or remove) a fastener 359 (see FIG. 4) that can be used to fasten (or couple) the spring assembly 404 and the idler housing 308, or to fasten (or couple) successive spring assemblies 404. Figure 21 Figure 8 ) This facilitates a rotatable connection between the roller tube 204 and the drive collar 496 such that they rotate together. The drive collar 496 can also define a radial aperture 499 (or passage 499). The aperture 499 can provide a passageway to insert (or remove) a fastener 359 (see Figure 22 ) This facilitates a rotatable connection between the roller tube 204 and the drive collar 496 such that they rotate together. The drive collar 496 can also define a radial aperture 499 (or passage 499). The aperture 499 can provide a passageway to insert (or remove) a fastener 359 (see

[0100] The drive collar 496 provides an intermediate point of contact with the roller tube 204 and can be positioned at one or more locations between the idler member 304 and the spring driver 408. In embodiments where the idler member 304 and the spring driver 408 are spaced apart a distance such that undesirable movement (or oscillation or wobble) of the roller tube 204 relative to the spring tensioning assembly 400 can occur, it can be desirable to integrate one or more drive collars 496 into the spring tensioning assembly 400. In embodiments where the spring tensioning assembly 400 has multiple spring assemblies 404, undesirable movement (or oscillation or wobble) of the roller tube 204 relative to the spring tensioning assembly 400 can occur. Figure 22 ​An embodiment of the spring tensioning assembly 400 is shown, comprising a plurality of spring assemblies 404a, 404b. While this embodiment shows two spring assemblies 404a, 404b, it should be understood that in other embodiments, two or more spring assemblies 404 may be integrated into the spring tensioning assembly 400.

[0101] The drive collar 496 can be positioned such that the center hole 497 (e.g.) Figure 21 (As shown) a portion of the idler housing 308 (such as) Figure 22 (As shown). Reference Figure 22 The drive collar 496 can rotate relative to the idler housing 308 near its second end 343, where a first locking member 346 of the idler housing 308 engages a second locking member 456 of the spring assembly 404a. Neither the idler housing 308 nor the spring assembly 404a rotates in response to the rotation of the roller tube 204, because neither the idler housing 306 nor the spring assembly 404a contacts the roller tube 204. Therefore, in response to the rotation of the roller tube 204, the drive collar 496 rotates freely relative to the idler housing 308.

[0102] Continue to refer to Figure 22 The drive collar 496 can also be positioned such that the center hole 497 (e.g.) Figure 21 (As shown) A portion of a wall 495 is received around a first locking member 346 of the spring assembly 404a. The drive collar 496 is rotatable relative to the first spring assembly 404a about the wall 495, where the first locking member 346 of the first spring assembly 404 engages the second locking member 456 of the second spring assembly 404b. The first spring assembly 404a and the second spring assembly 404b do not rotate in response to rotation of the roller tube 204 because neither spring assembly 404a nor 404b is in contact with the roller tube 204. Therefore, in response to rotation of the roller tube 204, the drive collar 496 is freely rotatable relative to the first spring assembly 404a and the second spring assembly 404b.

[0103] The drive collar 496 can be further positioned such that the center hole 497 (e.g.) Figure 21 (As shown) A portion of the receiving portion 484 of the receiving spring actuator 408 is received. The drive collar 496 is rotatable relative to the spring actuator 408 about the receiving portion 484 of the receiving second locking member 456 of the receiving second spring assembly 404b. Although the second spring assembly 404b does not rotate in response to the rotation of the roller tube 204 because the second spring assembly 404b is not in contact with the roller tube 204, the spring actuator 408 is in contact with the roller tube 202. Therefore, the drive collar 496 rotates relative to the second spring assembly 404b and rotates together with the spring actuator 408 in response to the rotation of the roller tube 204.

[0104] In embodiments where the spring tensioning assembly 400 has multiple spring assemblies 404, the spring assemblies 404 can be connected in parallel, in series, or in a combination of parallel and series (or interconnected). In other words, the spring assemblies 404 are connected such that the biasing forces exerted by the biasing members 424 onto each of the shafts 420 are connected in parallel, in series, or in a combination of parallel and series.

[0105] Figure 22 A plurality of spring assemblies 404 connected in parallel is shown. For ease of discussion, the first spring assembly 404a and its related components are identified with an "a" after the reference number, while the second spring assembly 404b and its related components are identified with a "b" after the reference number. The first spring assembly 404a or the second spring assembly 404b and related components are identical. The "a" and "b" are only associated with the first spring assembly 404a or the second spring assembly 404b and are provided for clarity purposes in the description.

[0106] Referring to Figure 22 , the shaft 420a (or first shaft 420a) of the first spring assembly 404a and the shaft 420b (or second shaft 420b) of the second spring assembly 404b are coupled by an interlocking connection. More specifically, the end of the shaft 420a interlocks (or engages) with the end of the shaft 420b. The interlocking connection II (or keyed connection) formed between the shafts 420a, 420b corresponds to the first locking member 346 of the first spring assembly 404a being positioned to engage with the second locking member 456 of the second spring assembly 404b. The interlocking connection II formed between the shafts 420a, 420b facilitates the biasing forces exerted by each of the biasing members 424a, 424b onto the respective shafts 420a and 420b being connected in parallel. The spring driver 408 rotates in response to the rotation of the roller tube 204. The drive shaft 488 of the spring driver 408 is in an interlocking connection I2 with the second shaft 420b of the second spring assembly 404b, the drive shaft 488 of the spring driver 408 rotating with the spring driver 408. Rotation of the spring driver 408 is transmitted through the drive shaft 488 to the second shaft 420b, and in turn from the second shaft 420 to the first shaft 420a. In this way, the shafts 420a, 420b rotate in response to the rotation of the spring driver 408. The first biasing member 424a exerts a first biasing force onto the first shaft 420a, and the second biasing member 424b exerts a second biasing force onto the second shaft 420b. These biasing forces are connected in parallel through the relevant interlocking connections of the shafts 420a, 420b.

[0107] Figures 23 to 24 An embodiment of the spring tensioning assembly 400 where the plurality of spring assemblies 404 are connected in series is shown. Referring to Figure 23The first spring assembly 404a is connected to the second spring assembly 404b by a series connection assembly 500. Referring to Figure 24 The series connection assembly 500 includes a housing 504 and a connector 508. The connector 508 is received in the housing 504. The connector 508 is also configured to rotate relative to the housing 504. The connector 508 includes a first end 512 opposite a second end 516.

[0108] Referring to Figures 24-25 The first end 512 of the connector 508 includes a receptacle 520. The receptacle 520 is defined by a wall 524 and includes a shaft 528 positioned in the receptacle 520. The shaft 528 is fastened to (or formed with) the receptacle 520 of the connector 508. Thus, the shaft 528 does not rotate relative to the connector 508, but rather rotates with the connector 508 (or the shaft 528 and the connector 508 rotate together). One end of the shaft 528 is configured to interlock with (or engage) one end of the shaft 420a of the first spring assembly 404a. To facilitate the interlocking connection, the shaft 528 defines a first coupling portion 490, while the shaft 420a defines a second coupling portion 494 (see Figure 24 ). The first coupling portion 490 and the second coupling portion 494 are keyed to interlock (or axially interlock) with the first locking member 346a of the first spring assembly 404a being received by the receptacle 520. The first coupling portion 490 and the second coupling portion 494 can together form a pawl interlocking coupling, or any other suitable axially keyed interlocking coupling. The interlocking coupling is configured to transfer rotational forces (or torque) between the shaft 528 and the first shaft 420a.

[0109] Referring to Figure 24 and Figure 26 The second end 516 of the connector 508 defines a first locking member 346. The first locking member 346 includes a plurality of alternating protrusions 350 and recesses 354 positioned on an inner periphery about an opening 532. The first locking member 346 is configured to engage a corresponding second locking member 456 defined by the second spring assembly 404b. The first locking member 346 of the connector 508 and the second locking member 456 of the second spring assembly 404b facilitate a keyed (or interlocking) engagement to fasten the connector 508 to the housing assembly 438b of the second spring assembly 404b.

[0110] The connection of the connector 508 with the first spring assembly 404a and the second spring assembly 404b facilitates the series connection of the biasing forces applied by each biasing member 424a, 424b to the respective shafts 420a, 420b. Referring to Figure 24The first shaft 420a of the first spring assembly 404a, for example, rotates in response to rotation of the spring driver 408 (as discussed above). As the first shaft 420a rotates, the rotational force is transferred to the shaft 528 of the connector 508. Accordingly, the shaft 528 rotates in response to rotation of the first shaft 420a. Rotation of the shaft 528 facilitates rotation of the connector 508. The connector 508 rotates relative to the housing 504. As the connector 508 rotates, the housing assembly 438b of the second spring assembly 404b rotates because the housing assembly 438a is coupled to the connector 508 by the keyed first and second locking members 346, 456. Accordingly, as the second shaft 420b rotates, the biasing force of the first and second spring assemblies 404a, 404b is transferred to the second shaft 420b through the series connection. It should be appreciated that this series connection can also be in the reverse order as described above, particularly from the second spring assembly 404b to the first spring assembly 404a.

[0111] It should be appreciated that the spring tension assembly 400 can include a single spring assembly 404 or multiple spring assemblies 404. The modular form of each spring assembly 404 facilitates the addition (or removal) of spring assemblies 404 as needed. Moreover, while Figure 22 spring assemblies 404 are shown connected in parallel, Figures 23 to 24 spring assemblies 404 are shown connected in series, in other embodiments, multiple spring assemblies can be connected in parallel and in series. As an example, in embodiments having at least three spring assemblies 404 (or three or more spring assemblies 404), a first spring assembly 404 and a second spring assembly 404 can be connected in parallel, as discussed in connection with Figure 22 while a second spring assembly 404 and a third spring assembly can be connected in series, as discussed in connection with Figures 23 to 24 In other embodiments, at least two spring assemblies 404 can be connected in series, and at least two spring assemblies 404 can be connected in parallel. It should be appreciated that, in other embodiments, a first plurality of spring assemblies 404 (e.g., two or more) can be connected in parallel, while a second plurality of spring assemblies 404 (e.g., two or more) can be connected in series. The modularity of the spring assemblies 404 facilitates adjustment to select (or change) the appropriate (or desired) counterbalancing force applied by the spring tension assembly 400 to the roller shade.

[0112] Figures 27 to 29 An alternative embodiment of the idler assembly 300a is shown. The idler assembly 300a has many of the same components as the idler assembly 300. For clarity, like numbers indicate like components. Like components having structural differences are identified by the same reference number (with an “a” added). These differences are discussed in further detail below. Reference is made to Figure 27The idler assembly 300a includes an idler member 304a and an idler housing 308. The idler member 304a defines a plurality of protrusions 306. The plunger 220 is slidably received and held by the idler housing 308. (Reference) Figures 28 to 29 The idler housing 308 includes an annular bearing 316 that engages with the idler member 304a. The idler member 304a is configured to rotate relative to the idler housing 308 via the annular bearing 316. The idler housing 308 also includes threads 324 and a support collar 332.

[0113] Now for reference Figure 29 The idler component 304a integrates (or is combined with) the timing ring 312a. In other words, instead of directly engaging the roller tube 204 as the timing ring 312, it is combined with... Figures 9 to 15 As disclosed in the idler assembly 300, the timing ring 312a engages with the idler member 304a. The timing ring 312a defines a timing ring thread 328a extending around the inner circumference of the timing ring 312a. The timing ring thread 328a is configured to engage with thread 324. The timing ring 312a is configured to rotate together with the idler member 304a. The idler member 304a is configured to rotate together with the roller tube 204. When the timing ring 312a rotates together with the idler member 304a, the timing ring 312 travels laterally (or horizontally) along the idler housing 308. This lateral travel is in response to the engagement of the timing ring thread 328a with the thread 324 on the idler housing 308. Therefore, when the timing ring 312a rotates relative to the idler housing 308, the timing ring 312a traverses the idler housing 308 and further travels laterally within (or along) the idler member 304a. For example, the timing ring 312a travels laterally along a channel defined in the idler member 304a (not shown, but similar to the engagement area 240 of the roller tube 204). This also facilitates the joint rotation of the timing ring 312a and the idler member 304a. The timing ring 312a rotates and travels laterally in response to the rotation of the idler member 304a. The direction of travel responds to the direction of rotation of the timing ring 312a (e.g., rotation of the timing ring 312a in a first direction causes the timing ring 312a to travel relative to the idler housing 308 in the first direction, rotation of the timing ring 312a in a second direction opposite to the first direction causes the timing ring 312a to travel relative to the idler housing 308 in the second direction opposite to the first direction, etc.). In the illustrated embodiment, the timing ring thread 328a extends multiple times around the inner circumference of the timing ring 312a. In other examples of the embodiment, the timing ring thread 328a may extend once around the inner circumference of the idler member 304a (i.e., it may be a single thread 328a). It should be understood that the timing ring 312a also includes a second stop member 340 ( Figure 15 As shown, Figure 29The second stop member 340 is configured to engage a surface of the first stop member 336.

[0114] Reference is now made to Figures 30 to 39 The brake assembly 600 is shown in greater detail. The brake assembly 600 includes the idler assembly 300, as well as additional brake components. For example, and with reference to Figures 30 to 32 and Figure 39 The brake assembly 600 includes an idler member 304, an idler housing 308, and a plunger 220 slidably received within the idler housing 308. The idler member 304, the idler housing 308, and the plunger 220 are identical to the components associated with the idler assembly 300, and operate in the same manner as described above. For brevity, the additional relevant components (e.g., the annular bearing 316, the biasing member 338, etc.) also operate in the same manner as the idler assembly 300, and are not repeated with respect to the brake assembly 600 for brevity.

[0115] The brake housing 604 is coupled to the idler housing 308. With reference to Figure 33 The brake housing 604 includes a second locking member 456. The second locking member 456 is configured to engage a corresponding first locking member 346 defined by the idler housing 308. The locking members 346, 456 form a keyed (or interlocking) engagement, which can be further coupled by at least one fastener (not shown), as discussed in detail above (e.g., as discussed in association with the idler housing 308 and the spring tension assembly 400, etc.).

[0116] The brake housing 604 includes a first housing portion 608a and a second housing portion 608b. The first housing portion 608a and the second housing portion 608b are identical, and are mirror images of one another. The housing portions 608a, 608b are coupled together, and can also be fastened by at least one fastener 612 (e.g., a screw, a bolt, etc.), as shown in Figure 35

[0117] The housing portions 608 each define a threaded portion 616 and a brake receiving portion 620. With reference to Figure 37 and Figure 39 ​threaded portion 616 defines a helical thread configured to engage a set screw 624 (also referred to as a braking force adjustment member 624), and more particularly, a complementary threaded portion 628 of the set screw 626. The set screw 624 further includes a bearing surface 632 positioned at a first end of the set screw 624, and a screw head 636 positioned at a second, opposite end of the set screw 624. In the illustrated embodiment, the screw head 636 is a socket head cap screw configured to receive a universal wrench. In other embodiments, the screw head 636 can be any suitable head or socket configured to receive (or engage) a suitable tool (e.g., Phillips type, flat, star, etc.). The set screw 624 is configured to rotate relative to the housing portions 608a, 608b. As the set screw 624 rotates, the set screw 626 travels laterally into or out of the brake receiving portion 620. The direction of lateral travel is determined by the direction of rotation of the set screw 624.

[0118] The bearing surface 632 is configured to contact an adjustment member 638. The adjustment member 638 is in contact with one end of a biasing member 640. The opposite end of the biasing member 640 is in contact with a plurality of braking surfaces 644. Referring to Figures 38 to 39 The plurality of braking surfaces 644 includes a plurality of alternating first washers 648 and second washers 652. The first washers 648 are formed of a first material, while the second washers 652 are formed of a second material different from the first material. The interaction between the washers 648, 652 creates friction, which contributes to the generation of braking force. It should be appreciated that the illustrated embodiment shows four first washers 648 and three second washers 652 therein in an alternating (or sandwiched) configuration. In other embodiments, fewer (or more) washers 648, 652 can be used to generate less (or more) braking force. For example, a larger or longer roller tube 204 can require more braking force, and thus more washers 648, 652. To this end, the plurality of braking surfaces 644 can be referred to as a disc brake assembly 644.

[0119] The washers 648, 652 are mounted to the bearing 656. More specifically, the washers 648, 652 are mounted to the outer surface (or outer periphery) of the bearing 656. The bearing 656 is preferably a one-way bearing (or anti-reverse bearing, needle bearing, or one-way clutch). The bearing 656 receives the brake shaft 660. A disc spring 664 (or finger spring 664) can be disposed between the brake surface 644 and the biasing member 640. The amount of friction between the washers can be adjusted to increase (or decrease) the biasing force exerted by the biasing member 640 onto the brake surface 644. In the illustrated embodiment, the first washer is a nylon washer, and the second washer is a steel washer. In other embodiments, the washers can be made of any suitable material that interacts to produce a suitable amount of friction to facilitate the generation of the braking force.

[0120] Referring back to Figures 32 to 36 , a portion of the brake shaft 660 extends out of the brake housing 604. The brake shaft 660 is coupled to the brake cover 664. Referring to Figure 34 , the brake cover 664 defines a plurality of protrusions 668 (or members 668). The protrusions 668 are positioned around the outer periphery of the brake cover 664. The protrusions 668 are configured to engage corresponding engagement regions 240 within the roller tube 204. More specifically, each protrusion 668 is configured to engage a corresponding first engagement region 240a. This facilitates the rotatable connection between the roller tube 204 and the brake cover 664 such that they rotate together.

[0121] Referring now to Figure 33 and Figure 39 , the set screw 624 is received by the idler housing 308. More specifically, the set screw 624 is received by the internal passage 334 defined by the idler housing 308. In addition, the set screw 624 is received by the internal passage 222 of the plunger 220. The set screw 624 also carries the biasing member 338 of the plunger 220.

[0122] Referring only to Figure 39 , the set screw 624 is configured to be accessed through the access hole 223. This facilitates the selective adjustment of the braking force (or brake tension) applied to the roller tube 204 to accommodate fine tuning of the brake without the need to remove components. More specifically, a user can pass a tool (e.g., a universal wrench, screwdriver, custom tool, etc.) through the access hole 223 and into the internal passage 222. The tool is configured to engage the screw head 636 of the set screw 624. The tool can then be rotated in a first direction to increase the braking force or in a second direction to decrease the braking force.

[0123] In response to rotating the tool in the first direction, the set screw 624 responsively rotates in the first direction. As the set screw 624 rotates, the threaded portion 628 of the set screw 624 traverses the threaded portion 616 of the housing portion 608 laterally. In response, the bearing surface 632 travels into the brake containment portion 620 and towards the brake surface 644. This slides the adjustment member 638 into the brake containment portion 620 and towards the brake surface 644. The adjustment member 638 compresses the biasing member 640. The biasing member 640 responsively exerts a biasing force towards the brake surface 644. More specifically, the biasing member 640 exerts a biasing force against the alternating first washer 648 and second washer 652. Compressing the washers 648, 652 together increases the braking force (or braking tension) exerted to the bearing 656 (and in turn to the brake shaft 660 and brake cover 664). The increased braking force is transmitted from the brake cover 664 to the roller tube 204.

[0124] In response to rotating the tool in the second direction, the set screw 624 responsively rotates in the second direction. As the set screw 624 rotates, the threaded portion 628 of the set screw 624 traverses the threaded portion 616 of the housing portion 608 laterally. In response, the bearing surface 632 travels outwardly from the brake containment portion 620 and away from the brake surface 644. This causes the adjustment member 638 to slide outwardly from the brake containment portion 620 and away from the brake surface 644. The adjustment member 638 decompresses the biasing member 640. The biasing member 640 responsively decreases the biasing force exerted to the brake surface 644. More specifically, the biasing member 640 decreases the biasing force against the alternating first washer 648 and second washer 652. Reducing the compression (or decompressing) of the washers 648, 652 decreases the braking force (or braking tension) exerted to the bearing 656 (and in turn to the brake shaft 660 and brake cover 664). The decreased braking force is transmitted from the brake cover 664 to the roller tube 204.

[0125] Referring now to Figures 40 to 42 , a clutch assembly 700 for driving the roller tube assembly 200 is shown. Referring to Figure 40 , the clutch assembly 700 includes a clutch housing 704, a clutch sprocket 708, a continuous loop operator 712, and a compression device 716. As Figure 42As shown, the clutch housing 704 (or clutch lever 704) defines a channel 720 about the collar 724. The clutch sprocket 708 is configured to engage the clutch housing 704 and rotate relative to the collar 724. The clutch sprocket 708 includes a plurality of radial protrusions 728 that define a plurality of pockets 732. Each pocket 732 is configured to selectively receive a portion of the continuous loop operator 712. In the illustrated embodiment, the continuous loop operator 712 is shown as a bead chain 712, and each pocket 732 selectively receives one of the beads that define the bead chain 712. A bore 736 is defined by the sprocket 708. The bore 736 receives the collar 724 to facilitate rotational connection between the clutch sprocket 708 and the clutch housing 704. More specifically, the clutch sprocket 708 is configured to rotate relative to the clutch housing 704. The clutch sprocket 708 also defines a plurality of mounting clips 740. As shown in Figures 41 to 42 , the mounting clips 740 are positioned about the bore 736 and are configured to engage a portion of the idler member 304. More specifically, the mounting clips 740 are configured to be selectively received by the mounting slots 305, as shown in Figure 43 . As shown in Figure 9 and Figure 30 , the plurality of mounting slots 305 are defined by the idler member 304 and extend about the plunger 220. The idler member 304 in connection with the idler assembly 300 and the brake assembly 600 incorporates the mounting slots 305. In this manner, the clutch assembly 700 can be mounted (or attached) to either end of the roller tube assembly 200. Accordingly, the clutch assembly 700 advantageously incorporates a non-handed system of operation. In commercially available clutch assemblies, the clutch is mounted on either the left-hand side of the roller shade or the right-hand side of the roller shade. This is because the commercially available clutch rotates in different directions to facilitate operation of the roller shade depending on the attached end. The clutch assembly 700 is configured for operation on either the left-hand side or the right-hand side of the roller tube assembly 200 (i.e., the clutch assembly 700 is non-handed, meaning it is not limited to left-hand or right-hand operation). The clutch assembly 700 simply needs to be placed in engagement with the idler member 304 on either end (the first end 208 of the roller tube 204 or the second end 212 of the roller tube 204) of the roller tube assembly 200, and the clutch assembly 700 is configured for operation.

[0126] Referring to Figure 40 and Figure 44 , the pinch device 716 is configured to selectively engage the continuous loop operator 712. With particular reference to Figures 44 to 45The hold down device 716 includes a first member 744 defining a first aperture 748 and a second member 752 defining a second aperture 756. The second member 752 is received by the first member 744. A biasing member 760 is connected at one end to the first member 744 and at an opposite end to the second member 752 (as shown in Figure 44

[0127] Figure 44 The hold down device 716 is shown in a first configuration. In this configuration, the apertures 748, 756 of the hold down device 716 are misaligned. This is in response to the biasing member 760 biasing the second member 752 relative to the first member 744 to position the apertures 748, 756 to be misaligned. The apertures 748, 756 capture the continuous looped operator 712, meaning that the continuous looped operator 712 cannot freely move through the apertures 748 and 756.

[0128] Figure 45 The hold down device 716 is shown in a second configuration. In this configuration, the apertures 748, 756 of the hold down device 716 are aligned. This is in response to the biasing applied by the biasing member 760 being overcome to position the apertures 748, 756 to be aligned. The apertures 748, 756 do not capture the continuous looped operator 712, meaning that the continuous looped operator 712 freely moves through the apertures 748 and 756. This biasing can be overcome by mounting the hold down device 716 to a surface, such as a wall or other structure in the vicinity of a building opening associated with the roller shade assembly 100.

[0129] The hold down device 716 is configured to be mounted to a surface to facilitate operation in the second configuration. To facilitate mounting, the hold down device 716 will travel with the continuous looped operator 712 when in the first configuration. Eventually, the hold down device 716 will contact the clutch housing 704 and / or the clutch sprocket 708, which limits further movement of the continuous looped operator 712. This impedes proper operation of the clutch assembly 700 and associated roller tube assembly 200. Proper mounting of the hold down device 716 can also reduce the risk of potential hazards caused by the continuous looped operator 712 (e.g., tripping hazards, strangulation of the independent loop, etc.). In other embodiments, the hold down device 716 can be any of the hold down devices disclosed in U.S. Patent No. 9,663,988 entitled “Hold Down Device for Window Covering Looped Operator” and U.S. Patent No. 10,415,304 entitled “Hold Down Device for Window Covering Looped Operator,” the entireties of each of which are incorporated herein by reference.

[0130] Figures 46 to 47 ​An embodiment of a chain steering system 764 for use with a clutch assembly 700 is shown. (Reference) Figure 46 A chain steering mechanism 764 is configured to attach (or connect) to a support member 122. Preferably, the chain steering mechanism 764 is connected to the support member 122 associated with the ends 208, 212 of the roller tube 204 of the attached clutch assembly 700. The chain steering mechanism 764 defines a first slot 768 and a second slot 772. A spacer member 776 is positioned between the first slot 768 and the second slot 772. Each slot 768, 772 is configured to receive one of the two portions of the continuous ring actuator 712. The spacer member 776, together with the spaced-out slots 768, 772, maintains the separation of the two portions of the continuous ring actuator 712. This facilitates the separation of the two portions and limits the risk of undesirable twisting or entanglement that could hinder the proper operation of the continuous ring actuator 712. The chain steering device 764 is positioned between the clutch housing 704 and the clamping device 716, and preferably closer to the clutch housing 704 than the clamping device 716.

[0131] In operation of the roller blind assembly 100, the roller tube assembly 200 is selectively mounted to the bracket assembly 120. Additionally, a cover 216 is coupled to the roller tube 204. In a first operating configuration, the cover material 216 is unwound (or unfolded) from the roller tube 204. This lowers the cover material 216 relative to the building opening. A user actuates a continuous ring actuator 712 in a first direction, which, in response, rotates the clutch sprocket 708 relative to the clutch housing 704. The clutch sprocket 708, in turn, rotates its connected idler member 304.

[0132] In one embodiment where the clutch assembly 700 is coupled to the idler member 304 of the idler assembly 300 (or at the first end 208 of the roller tube 204), rotation of the clutch sprocket 708 responsively rotates the idler member 304 of the idler assembly 300. The idler member 304 rotates relative to the idler housing 308, and consequently rotates the roller tube 204. As the roller tube 204 rotates, the idler member 304 of the brake assembly 600 responsively rotates. More specifically, the idler member 304 rotates relative to the idler housing 308 of the brake assembly 600.

[0133] In another embodiment where the clutch assembly 700 is coupled to the idler member 304 of the brake assembly 600 (or at the second end 212 of the roller tube 204), rotation of the clutch sprocket 708 responsively rotates the idler member 304 of the brake assembly 600. The idler member 304 rotates relative to the idler housing 308 and, in turn, rotates the roller tube 204. When the roller tube 204 rotates, the idler member 304 of the idler assembly 300 responsively rotates. More specifically, the idler member 304 rotates relative to the idler housing 308 of the idler assembly 300 of the brake assembly.

[0134] When the roller tube 204 rotates in response to the idler member 304 being driven by the clutch assembly 700, the timing ring 312 responsively rotates. In embodiments of the idler assembly 300 where the timing ring 312 is engaged with the roller tube 204, rotation of the roller tube 204 responsively rotates the timing ring 312. In embodiments of the idler assembly 300a where the timing ring 312a is engaged with the idler member 304a, rotation of the idler member 304 (in response to rotation of the roller tube 204 or rotation from the clutch assembly 700) responsively rotates the timing ring 312a. As the timing ring 312, 312a rotates relative to the idler housing 308, the timing ring 312, 312a traverses the idler housing 306. The timing ring 312, 312a traverses the idler housing 308 in response to the timing ring threads 328 traveling through the threads 324 of the idler housing 308. The timing ring 312, 312a traverses the idler housing 308 until the covering 216 is sufficiently (or completely) unwound from the roller tube 204 (where the timing ring 312, 312a traverses in a direction away from the second stop member 336) or until the first stop member 332 engages or otherwise contacts the second stop member 336 (where the timing ring 312, 312a traverses in a direction toward the second stop member 336).

[0135] Furthermore, when the roller tube 204 rotates in response to the idler member 304 being driven by the clutch assembly 700, the spring driver 408 responsively rotates. As the spring driver 408 rotates, the drive shaft 488 also rotates. Rotation of the drive shaft 488, in turn, rotates the connecting shaft 420 of the spring assembly 404. As the shaft 420 rotates relative to the spring assembly 404, the biasing member 424 exerts a biasing force against the shaft 420. This spring biasing force exerts tension back into the roller tube 204 to help maintain the selected position of the covering 216 relative to the architectural opening. As discussed above, in other embodiments, multiple spring assemblies 404 can be connected in parallel, connected in series, or connected in parallel and in series. The operation of the multiple spring assemblies 404 connected in parallel, connected in series, or connected in parallel and in series occurs as discussed above.

[0136] Further, as the roller tube 204 rotates in response to the idler member 304 being driven by the clutch assembly 700, the brake cover 664 responsively rotates. As the brake cover 664 rotates, the brake shaft 660 responsively rotates. As the brake shaft 660 rotates, it rotates relative to the one-way bearing 656. Generally, the direction of rotation of the brake shaft 660 in relation to the unwinding of the cover material 216 from the roller tube 204 is the direction in which the one-way bearing 656 transmits torque to the brake shaft 660. Thus, as the cover material 216 is unwound from the roller tube 204 to the desired position relative to the architectural opening, the braking force generated by the brake surface 644 is transmitted through the one-way bearing 656 to the brake shaft 660. The braking force is further transmitted from the brake shaft 660 to the roller tube 204 through the brake cover 664 to limit the cover material 216 from “slipping” or accidentally falling (or being accidentally further unwound from the roller tube 204 without the user interacting with the clutch assembly 700).

[0137] In the second operating configuration, the cover material 216 is wound (or coiled) onto the roller tube 204. This raises the cover material 216 relative to the architectural opening. The user actuates the continuous loop operator 712 in the second direction, which in response causes the clutch sprocket 708 to rotate relative to the clutch housing 704. The clutch sprocket 708 in turn causes the idler member 304 to which it is connected to rotate. The rotation of the clutch sprocket 708 and the idler member 304 is substantially the same as described above in relation to unwinding the cover material 216 from the roller tube 204, except that the clutch sprocket 708, the idler member 204, and the roller tube 204 rotate in the opposite direction.

[0138] When the roller tube 204 rotates in response to the idler member 304 being driven by the clutch assembly 700, the timing ring 312, 312a responsively rotates. As the timing ring 312, 312a rotates relative to the idler housing 308, the timing ring 312, 312a traverses the idler housing 308. The timing ring 312, 312a traverses the idler housing 308 until the cover 216 is sufficiently (or completely) wound onto the roller tube 204 (where the timing ring 312 and 312a traverse in a direction away from the second stop member 336), or until the first stop member 332 engages or otherwise contacts the second stop member 336 (where the timing ring 312, 312a traverses in a direction toward the second stop member 336). In the illustrated embodiment, as the cover material 216 is wound (or coiled) onto the roller tube 204, the timing ring 213, 312a traverses the idler housing 308 toward the second stop member 336. This prevents the drape (or other end structure) of the cover material 216 from being raised too far (or wound onto the roller tube 204 too far) because the contact between the first stop member 332 and the second stop member 336 limits further rotation of the timing ring 312, 312a. This limitation on further rotation is in turn communicated to the roller tube 204 and the idler member 304, and ultimately to the clutch assembly 700.

[0139] Further, as the roller tube 204 rotates in response to the idler member 304 being driven by the clutch assembly 700, the spring driver 408 responsively rotates. Rotation of the spring driver 408 causes rotation of the connected shaft 420 of the drive shaft 488 and the spring assembly 404. As the shaft 420 rotates relative to the spring assembly 404, the biasing member 424 reduces the biasing force on the shaft 420. This power spring biasing force reduces the tension back to the roller tube 204.

[0140] Further, as the roller tube 204 rotates in response to the idler member 304 being driven by the clutch assembly 700, the brake cover 664 responsively rotates. As the brake cover 664 rotates, the brake shaft 660 responsively rotates. As the brake shaft 660 rotates, it rotates relative to the one-way bearing 656. Generally, the direction of rotation of the brake shaft 660 relative to the cover material 216 being wound from the roller tube 204 is the direction in which the one-way bearing 656 is free to rotate to the brake shaft 660 (i.e., opposite the torque transmission direction). Thus, the brake shaft 660 is free to rotate relative to the one-way bearing 656 to facilitate winding of the cover material 216 onto the roller tube 204 with minimal interference from the brake surface 644.

[0141] Figures 48 to 50 Another example of an embodiment of a cradle assembly 900 for use with the roller tube assembly 200 is shown. It should be appreciated that, Figure 48The components of the illustrated bracket assembly 900 form one half of the bracket assembly 900. Figure 48 The illustrated components are configured to be connected to one end of the roller tube assembly 200. Figure 48 A duplicate of the same components is configured to be connected to the other end of the roller tube assembly 200. In this manner, the bracket assembly 900 includes two sets of Figure 48 The illustrated components.

[0142] Referring to Figure 48 The bracket assembly 900 includes a mounting bracket 904, a first bracket cover 908, and a second bracket cover 912. The mounting bracket 904 defines a bore 916 and a mounting portion 920. The mounting portion 920 includes a first mounting surface 924 and a second mounting surface 928. The mounting surfaces 924, 928 are generally oriented orthogonal (or perpendicular) to each other. Each mounting surface 924, 928 defines a plurality of mounting holes 932. The mounting holes 932 are configured to receive an associated fastener (e.g., a screw, a nail, a bolt, etc.). The fasteners are configured to selectively attach (or mount) each respective mounting bracket 904 relative to the architectural opening (e.g., to facilitate attachment within a perimeter of the architectural opening, attachment outside the perimeter of the architectural opening, attachment to a window frame, attachment to a wall or other structure outside the window frame, etc.). Each mounting surface 924, 928 also includes at least one cover hole 936.

[0143] The bore 916 is configured to receive the plunger 220 of the roller tube assembly 200. The bore 916 includes a plurality of radial members 134 (or radial fingers 134) positioned around a perimeter of the bore 916 and extending (or reaching into) the bore 916 from the mounting bracket 904. Each radial member 134 is spaced apart from an adjacent radial member 134 by a distance to form a sawtooth (or zigzag) profile. The bore 916 also includes at least one protrusion 138. Each protrusion 138 can be actuated (e.g., by a screwdriver or other device, etc.) relative to the mounting bracket 904 to provide additional space to insert (or remove) the plunger 220 into (or from) the bore 916.

[0144] Furthermore, the bracket assembly 900 includes a substantially identical pair of mounting brackets 904. The mounting brackets 904 are oriented to face each other (i.e., one mounting bracket 904 is rotated one hundred eighty degrees (180°) relative to the other mounting bracket 904, or one mounting bracket 904 is a mirror image of the other mounting bracket 904). The pair of mounting brackets 904 can be referred to as a first mounting bracket 904 and a second mounting bracket 904. The first mounting bracket 904 is configured to engage the plunger 220 received in the first end 208 of the roller tube 204, while the second mounting bracket 904a is configured to engage the plunger 210 received in the second end 212 of the roller tube 204.

[0145] Mounting bracket 904 is configured to be slidably received by first bracket cover 908. First bracket cover 908 defines a recess 940. Referring to Figure 49 , first bracket cover 908 also defines a slot 944 that leads to recess 940. Mounting bracket 904 is inserted into (or received by) slot 944 such that the portion of mounting bracket 904 having aperture 916 is positioned in recess 940.

[0146] Second bracket cover 912 is configured to selectively engage mounting portion 920 of mounting bracket 904. Second bracket cover 912 includes a first face 948 and a second face 952. Faces 948, 952 are generally oriented orthogonal (or perpendicular) to one another. Further, faces 948, 952 are oriented to have a complementary geometry to mounting surfaces 924, 928. First face 948 defines a plurality of mounting holes 932a that are complementary to mounting holes 932 of mounting surfaces 924, 928. Second face 952 defines a member 956 that is configured to be received by one of cover holes 936.

[0147] First bracket cover 908 and second bracket cover 912 together decoratively cover mounting bracket 904. In other words, mounting bracket 904 is generally not exposed. Only the portion of mounting bracket 904 that faces roller tube 204 is not exposed, which is necessary to facilitate engagement of plunger 220 with aperture 916. However, roller tube 204 and the associated components of roller tube assembly 200 generally obscure the partially exposed portion of mounting bracket 904 from view. To facilitate covering mounting bracket 904, mounting bracket 904 is received by first bracket cover 908. Then, second bracket cover 912 is placed in engagement with mounting bracket 904 based on mounting surfaces 924, 928 for mounting mounting bracket 904.

[0148] In a first mounting configuration in which first mounting surface 924 is used to mount mounting bracket 904, second bracket cover 912 is oriented such that mounting holes 932a of first face 948 are aligned with mounting holes 932 of first mounting surface 922. Member 956 of second face 952 is received by cover hole 936 of second mounting surface 928. This facilitates one or more fasteners being received by the aligned mounting holes 932, 932a of first mounting surface 924 while second face 952 decoratively covers second mounting surface 928 (see Figure 50 ).

[0149] In the second mounting configuration in which the second mounting surface 928 is used to mount the mounting bracket 904, the second bracket cover 912 is oriented such that the mounting holes 932a of the first face 948 are aligned with the mounting holes 932 of the second mounting surface 928. The member 956 of the second face 952 is received by the cover hole 936 of the first mounting surface 924. This facilitates the receipt of one or more fasteners by the aligned mounting holes 932, 932a of the second mounting surface 928 while the second face 952 decoratively covers the first mounting surface 924.

[0150] Referring now to Figures 51 to 53 , another embodiment of a roller shade assembly 1000 is shown. The roller shade assembly 1000 is shown as a transparent shade. The roller shade assembly 1000 includes a headrail 1004 that receives a roller tube assembly 200 (see Figure 53 ). The roller tube assembly 200 is identical to the roller tube assembly 200 discussed above and includes a roller tube 204, a idler assembly 300, a spring tension assembly 400, and a brake assembly 600 (shown in Figure 7 ). The idler assembly 300 and the spring tension assembly 400 are configured to be received in the first end 208 of the roller tube 204 (shown in Figure 7 ). The brake assembly 600 is configured to be received in the second end 212 of the roller tube 204 (shown in Figure 7 ). The roller tube assembly 200 is configured to engage bracket members 122b. Referring to Figure 52 , each bracket member 122b defines a hole 130 that is configured to receive a plunger 220 of the roller tube assembly 200 as discussed above. The bracket members 122b have a different geometry than the bracket members 122, 122a and are not configured to be mounted relative to an architectural opening. Rather, the headrail 1004 is mounted relative to an architectural opening by a mounting bracket 1006 that is configured to engage a portion of the headrail 1004. The mounting bracket 1006 is fastened relative to the architectural opening with a plurality of fasteners 1007 (e.g., screws, nails, bolts, etc.).

[0151] A covering 216a (or shade 216a or architectural covering 216b) is coupled to the roller tube 204. More specifically, the covering 216a includes a first end 1008 (shown in Figure 53 ) that is coupled to the roller tube 204. The covering 216a extends from the roller tube 204 to an adjustable bottom rail 1012 (shown in Figure 51 ). The bottom rail 1012 houses a cylindrical rod (or roller, not shown) with the covering 216a partially wrapped around the bottom rail 1012 and then exiting the bottom rail to return to the headrail 1004. A second end 1016 of the covering 216a is attached to the headrail 1004.

[0152] Unlike known transparent shades in which the second end of the covering material is attached within (or inside) the headrail, the roller assembly 1000 advantageously has the second end 1016 of the covering 216a attached to the back surface 1020 of the headrail 1004. In other words, the second end 1016 is attached to the outside of the headrail 1004. Since the attachment is not within the headrail 1004, there is more room within the headrail 1002. This allows for a larger diameter roller tube assembly 200 to be accommodated and / or allows for a larger amount of covering 216a to be rolled onto the roller tube assembly 100.

[0153] The headrail 1004 includes a housing 1018 that partially defines an enclosure 1020. The enclosure 1020 receives the roller tube assembly 200. The housing 1018 includes a first side 1024 and an opposite second side 1028. The first side 1024 is within the enclosure 1020 and faces the roller tube assembly 200. The second side 1028 is the outside of the headrail 1004. The housing 1018 defines a channel 1032 that is positioned on the second side 1028 of the headrail 1004. The channel 1032 is a longitudinal channel that is configured to receive the second end 1016 of the covering 216a. A spline (not shown) is configured to be received in the channel 1032 to retain the second end 1016 of the covering 216a. The covering 216a extends from the channel 1032 and over a portion of the second side 1028 of the housing 1018 to the bottom rail 1012. From the second end 1016 to the bottom rail 1012, the covering 216a is positioned on the outside of the headrail 1004. Once the headrail 1004 is installed, the channel 1032 and the associated portion of the covering 216a positioned on the outside of the headrail 1004 are generally not visible because this portion of the covering 216b is sandwiched between the headrail 1004 and the surface on which the headrail 1004 is installed.

[0154] In operation, a user moves the bottom rail 1012 relative to the headrail 1004. As the bottom rail 1012 moves away from the headrail 1004, the covering material 216a unwinds from the roller tube 204 of the roller tube assembly 200. More specifically, since the second end 1016 of the covering material 216a is attached to the headrail 1004, as the bottom rail 1012 moves away from the headrail 1004, the cylindrical rod exerts a downward force on the covering material 216b. This force is transferred to the roller tube assembly 200 to facilitate unwinding of the covering material 216 from the roller tube 204. As the bottom rail 1012 continues to move away from the headrail 1004, the covering material 216a slides around the cylindrical rod. Moving the bottom rail 1012 toward the headrail 1004 facilitates winding the covering material 216 onto the roller tube 204.

Claims

1. A roller assembly (100), comprising: a roller tube (204) including a first end (208) opposite a second end (212), the roller tube (204) defining an opening (232) extending longitudinally between the first end (208) and the second end (212); and an idler assembly (300) partially received by the opening (232) of the roller tube at the first end (208), the idler assembly (300) including an idler housing (308), an idler member (304) carried by the idler housing (308), a plunger (220) received by the idler housing (308), a biasing member (338) configured to apply a biasing force to the plunger (220), and a first locking member (346) defined by the idler housing (308), the first locking member (346) defining an opening (348), wherein the plunger (220) is configured to slide relative to the idler housing (308) and the plunger (220) is configured to selectively engage a bracket member (122), and wherein the idler member (304) is configured to engage the roller tube (204); a spring assembly (404) received by the roller tube (204) and including a housing (412), a shaft (420) received by the housing (412), a spring member (424) connected at one end to the housing (412) and at an opposite end to the shaft (420), and a second locking member (456) defined by the housing (412), wherein the second locking member (456) is configured to be received by the opening (348) defined by the first locking member (346) to interlock the first locking member (346) and the second locking member (456); and a spring driver (408) received by the roller tube (204) and including a drive shaft (488) configured to interlock with the shaft (420) of the spring assembly (404) and configured to engage the roller tube (204), wherein in response to rotation of the roller tube (204), the spring driver (408) is configured to rotate with the roller tube (204), the shaft (420) of the spring assembly (404) is configured to rotate in response to rotation of the spring driver (408), and the idler member (304) is configured to rotate with the roller tube (204) and relative to the idler member (304), and wherein, in response to rotation of the shaft (420) of the spring assembly (404), the spring assembly (404) is configured to apply a counterbalancing force to the roller tube (204).

2. The roller shade assembly (100) of claim 1, wherein, The plunger (220) is configured to slide relative to the idler housing (308) along an axis (342) that defines an axis of rotation of the roller tube (204).

3. The roller shade assembly (100) of claim 1, further comprising a bearing (316) coupled to the idler housing (308), the idler member (304) engaging the bearing (316) for rotation relative to the idler housing (308).

4. The roller shade assembly (100) of claim 3, wherein, The bearing (316) is received by an annular groove (320) defined by the idler housing (308).

5. The roller shade assembly (100) of claim 1, further comprising a timing ring (312) coupled to the idler housing (308), the timing ring (312) configured to rotate relative to the idler housing (308).

6. The roller shade assembly (100) of claim 5, wherein, The idler housing (308) defines a helical thread (324), the timing ring (312) defines a timing ring thread (328), and the timing ring thread (328) is configured to engage the helical thread (324), and wherein the idler housing (308) defines an internal passage (334), the plunger (220) is slidably received by the internal passage (334), and the helical thread (324) overlaps the internal passage (334).

7. The roller shade assembly (100) of claim 5, wherein, The idler housing (308) defines a helical thread (324), the timing ring (312) defines a timing ring thread (328), and the timing ring thread (328) is configured to engage the helical thread (324), and wherein, in response to rotation of the timing ring (312) relative to the idler housing (308), the timing ring (312) travels laterally along the idler housing (308).

8. The roller shade assembly of claim 7, wherein, The idler housing (308) includes a support collar (332) that defines a first stop member (336), and the timing ring (312) defines a second stop member (340), wherein, in response to the second stop member (340) contacting the first stop member (336), rotational movement of the timing ring (312) relative to the idler housing (308) in a first direction is limited.

9. The roller shade assembly (100) of claim 1, wherein, In response to rotation of the roller tube (204), the spring driver (408) is configured to rotate relative to the housing (412) of the spring assembly (404), wherein, in response to rotation of the shaft (420), the spring member (424) applies a biasing force to the shaft (420) to generate the counterbalancing force.

10. The roller shade assembly (100) of claim 1, further comprising: a brake assembly (600) received by the roller tube (204), the brake assembly (600) including: a brake member (602) coupled to the plunger (220), the brake member (602) configured to engage the idler member (304) to limit rotation of the idler member (304) relative to the idler housing (308), and a brake housing (604); a brake shaft (660) partially received by the brake housing (604); a brake cover (664) coupled to the brake shaft (660); a plurality of braking surfaces (644) carried by the brake shaft (660) and received by the brake housing (604); and a brake force adjustment member (624) partially received by the brake housing (604) and in operable engagement with the plurality of braking surfaces (644), wherein the brake cover (664) is configured to engage the roller tube (204), and wherein a braking force applied by the plurality of braking surfaces (644) to the roller tube (204) is adjusted in response to rotation of the brake force adjustment member (624) relative to the brake housing (604).

11. The roller shade assembly (100) of claim 10, wherein, The brake force adjustment member (624) is threadably engaged to the brake housing (604).

12. The roller shade assembly (100) of claim 10, wherein, The idler assembly (300) is a first idler assembly (300), and the roller shade assembly (100) further comprises: a second idler assembly (300) partially received by an opening (232) of the roller tube (204) at the second end (212) of the roller tube (204), the second idler assembly (300) including a second idler housing (308), a second plunger (220) received by the second idler housing (308), and a second biasing member (338) configured to apply a biasing force onto the second plunger (220), wherein the second plunger (220) is configured to slide relative to the second idler housing (308), the second plunger (220) is configured to selectively engage a second bracket member (122), and the second idler housing (308) engages the brake housing (604), a portion of the brake force adjustment member (624) being received by the second idler housing (308).

13. The roller shade assembly (100) of claim 10, the brake assembly (600) further comprising: a bearing (656), the plurality of braking surfaces (644) being mounted to the bearing (656), and the bearing (656) receiving the brake shaft (660), wherein the brake cover (664) is configured to rotate with the roller tube (204), and wherein, in response to the brake cover (664) rotating with the roller tube (204) in a first direction, the brake shaft (660) rotates with the brake cover (664) and the bearing (656) rotates with the brake shaft (660), and wherein, in response to the brake cover (664) rotating with the roller tube (204) in a second direction opposite the first direction, the brake shaft (660) rotates with the brake cover (664) relative to the bearing (656).

14. The roller shade assembly (100) of claim 11, the brake assembly (600) further comprising: a biasing member (640) operatively connected to the brake force adjustment member (624), wherein, in response to rotation of the brake force adjustment member (624) relative to the brake housing (604) in a first direction, the brake force adjustment member (624) is configured to compress the biasing member (640), and in response thereto, the biasing member (640) applies a biasing force to the plurality of brake surfaces (644) to increase the braking force applied by the plurality of brake surfaces (644) to the roller tube (204).

15. The roller shade assembly (100) of claim 1, wherein, in response to rotation of the roller tube in a first direction, the spring assembly is configured to apply a counterbalancing force to the roller tube via the spring driver.

Images