Abstract:
End structure for an elongated traverse rod having side-by-side parallel channels, one thereof opening downwardly and the other opening sidewardly. An elongated flexible element in one of the channels effects movement of a master carrier along the rod. The end structure has a pulley housing which is securable to the traverse rod by guide structure and has plural, downwardly opening compartments. A pair of pulleys are rotatably mounted on a first shaft and respectively within two of said compartments, such pulleys being engaged by the elongated flexible element. A second shaft is rotatably supported on the pulley housing and extends parallel within the other channel of said traverse rod. A drive pulley is secured to an end of the second shaft and is disposed in one of said compartments. Manually operable pulls engage the drive pulley for effecting rotation thereof.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is related to copending applications filed concurrently herewith, Ser. Nos. 298,553 and 298,552. 
     FIELD OF THE INVENTION 
     This invention relates to an end structure for a traverse rod and, more particularly, relates to a type thereof having a rotatable drive mechanism for pivoting vertical blinds supported on the traverse rod and having pulleys supporting cords for effecting movement of a master carrier along the traverse rod. 
     BACKGROUND OF THE INVENTION 
     The invention disclosed herein arose out of a need to provide an inconspicuous traverse rod assembly for use in a vertical blind assembly. Most traverse rods are conspicuously mounted along the top of a window opening. Usually an attempt is made by the installer to select a color for the rod which will match the decor of the area. However, it has been and still is unlikely that a perfect color matching will be possible. Further, the problem of color matching is increased when the decor of the area is changed. Oftentimes, a painter will accidently smear paint on the traverse rod thereby causing the rod to be unsightly. Thus, it may be necessary to hide the rod by a valance or other similar device. 
     The problem of conspicuousness with respect to the traverse rod and the structure operable therewith to effect an operation of the vertical blinds has been solved by the structure disclosed in copending applications filed concurrently herewith, Ser. Nos. 298,553 and 298,552. This structure satisfactorily separates the mechanism for pivoting the vertical blinds about a vertical axis from the cords for moving the vertical blinds across the window opening and thereby prevents the cords from becoming snarled in the drive mechanism for pivoting the vertical blinds. However, the problem of developing a satisfactorily operable pulley housing to operably cooperate with the traverse rod and the structure operable therewith has remained a problem. Accordingly, it is desirous to solve the problem of providing a pulley housing for the traverse rod capable of effecting operation of a vertical blind assembly. 
     The objects of the invention include: 
     1. The provision of an end structure which has an overall height comparable to the height of the traverse rod and includes mechanism for effecting operation of vertical blind slats associated with the traverse rod. 
     2. The provision of an end structure, as aforesaid, which is easily assembled without the use of special tools and by procedures previously developed. 
     3. The provision of an end structure, as aforesaid, which is of a durable construction and is easily maintainable. 
     4. The provision of an end structure wherein a major portion of the wall structure thereof is of the same thickness to facilitate an even curing of the material following injection of the material thereof into a mold, whereby to further facilitate a maintaining of desired tolerances during the molding process. 
     5. The provision of pin end structures, as aforesaid, which are secured to opposite ends of the traverse rod and are mirror images of each other to thereby facilitate the alternate placement of the manually engageable pulls at either end of the traverse rod and to thereby facilitate operation of the vertical blind arrangement from either end of the traverse rod. 
     SUMMARY OF THE INVENTION 
     In general, the objects and purposes of the invention are met by providing an end structure engageable with an end of an elongated traverse rod which has two side-by-side parallel channels, one thereof opening downwardly and the other opening rearwardly. An elongated flexible element extends within one of the channels for effecting movement of a master carrier along the rod. The end structure includes a pulley housing having guide structure securable to an end of the traverse rod. Compartments are provided in the pulley housing for receiving flexible element guiding pulleys and a rotatable shaft, the axis of which extends parallel within the other channel of the traverse rod. The axis of the pulleys is generally perpendicular to the traverse rod. The end structure is secured to the traverse rod by a fastening element inconspicuously accessible through one of the channels of the traverse rod. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Other objects and purposes of this invention will be apparent to persons acquainted with apparatus of this general type upon reading the following specification and inspecting the accompanying drawings, in which: 
     FIG. 1 is a rear perspective view of a traverse rod having on opposite ends thereof end structures embodying the invention; 
     FIG. 2 is an exploded, bottom perspective view of an end structure embodying the invention; 
     FIG. 3 is a top plan view of said end structure; 
     FIG. 4 is a sectional view taken along the line IV--IV of FIG. 3; 
     FIG. 5 is a bottom view of said end structure; 
     FIG. 6 is a sectional view taken along the line VI--VI of FIG. 5; 
     FIG. 7 is a sectional view taken along the line VII--VII of FIG. 1; and 
     FIG. 8 is an enlarged fragment of an H-shaped guide on said end structure. 
    
    
     DETAILED DESCRIPTION 
     The words &#34;up&#34;, &#34;down&#34;, &#34;right&#34;, &#34;left&#34;, &#34;front&#34;, &#34;rear&#34; and derivatives thereof will designate directions in the drawings to which reference is made, the &#34;front&#34; side of the end structure in FIGS. 4, 5 and 7 being the right side thereof. &#34;In&#34; and &#34;out&#34; and words of similar import will refer to the geometric center of the device and designated parts thereof. 
     A preferred embodiment of the traverse rod assembly disclosing the invention is illustrated in FIG. 1. The traverse rod assembly includes an elongated traverse rod 11 and a pair of end structures 12 and 13 on opposite ends thereof. The features of the end structures 12 and 13 are the subject matter of the invention disclosed herein. The structure of the traverse rod and the cooperation of the master carrier and sliders with each other and with other structure on the traverse rod are the subject matter of the aforementioned two copending applications filed concurrently herewith. The one copending application Ser. No. 298,553 is entitled MASTER CARRIER FOR A TRAVERSE ROD and the other application Ser. No. 298,552 is entitled TRAVERSE ROD FOR A VERTICAL BLIND. The disclosures in these two applications are incorporated by reference herein. 
     For convenience, however, the traverse rod 11 (FIG. 7) is described as having a top wall 16 and downwardly extending and transversely spaced rear wall 17, middle wall 18 and front wall 19. A substantially horizontal bottom wall 21 is integrally connected to the middle wall 18 at the bottom thereof and terminates in an upwardly extending rear flange 22 coplanar with the wall 17. The upper edge of the flange 22 and the lower edge of the rear wall 17 define an opening or slot 23 into a channel 24 defined by the top wall 16, the walls 17, 18 and 21, and the flange 22. A substantially horizontal flange 26 is integrally connected to the bottom edge of the front wall 19 and extends rearwardly toward, but terminates short of, the middle wall 18 to define an opening or slot 27 into a channel 28 defined by the flange 26, the front wall 19, the top wall 16 and the middle wall 18. 
     An elongated, integral rib 29 extends upwardly from the top wall 16 adjacent the plane containing the rear wall 17 and has a rearwardly opening recess 31 therein. The elongated rib 32 extends upwardly from the top wall intermediate the plane containing the middle wall 18 and the front wall 19 and has a rearwardly opening recess 33 and a frontwardly opening recess 34. The rib 36 extends upwardly in generally the same plane as the front wall 19 and has a flange 37 extending forwardly of the plane containing the front wall 19. A small flange 38 extends forwardly of the front wall 19 in the plane of the bottom wall 26. The flanges 37 and 38 define a trough 39. 
     A pair of inwardly projecting and coplanar flanges 41 and 42 are provided in the channel 28 approximately one-third of the way down from the top wall 16. 
     A conventional type of wall mounted bracket 43 can be used to secure the traverse rod 11 to an upstanding wall 44. Alternatively, a similar bracket (not illustrated) can be utilized for securing the traverse rod to the ceiling. Both types of brackets are generally illustrated in U.S. Pat. No. 3,273,197 and reference thereto is incorporated herein. 
     The end structure 13 (FIGS. 2 to 6) is a mirror image of the end structure 12 and, therefore, a detailed description of end structure 13, only, will be given herein. The end structure 13 comprises a pulley housing 46 having a generally rectangular shape with a top wall 45, side walls 48 and 50 and end walls 47 and 49. The side walls 48 and 50 extend parallel to each other away from the end wall 49 but the side wall 50 terminates short of the end wall 47 to define a space 51 therebetween. An upright wall 52 is integral with and extends between the side walls 48 and 50 approximately one-third of the way from the end wall 47 toward the end wall 49. This side wall 50 effectively abuts the end of the rod 11 when the end structure 13 is mounted thereon. An upright wall 53 is integral with the side wall 48 and extends between the end wall 47 and the upright wall 52. The walls 47, 52 and 53 are parallel to each other and define therebetween the compartments 54 and 56. Axially aligned openings 57 are provided in the walls 47, 52 and 53 and are adapted to receive an axle 58 therein. 
     A pulley 61 is received into the compartment 54 and is rotatably supported on the axle 58. A pulley 62 is received into the compartment 56 and is rotatably supported on the axle 58. The pulleys 61 and 62 guide the cords 60 which are conventionally operatively connected to the master carriers 65. 
     The wall 53 is flush at the bottom edge thereof with the bottom edge of the walls 47 and 52. However, the upper edge of the wall 53 terminates at a height less than the height of the walls 47 and 52 as illustrated in broken lines in FIG. 4. The upper edge of the wall 53 is connected to the mutually facing sides of the walls 47, 48 and 52 by an arcuate wall section 59 having a center point coinciding with the axis of the axle 58. 
     An H-shaped guide 63 (FIG. 2) is integrally secured to the walls, 47, 52 and 53 on a side thereof remote from the side wall 48. More specifically, the H-shaped guide 63 has a pair of upstanding side walls 64 and 66 and an interconnecting bight 67 intermediate the height of the side walls 64 and 66. The side walls 64 and 66 are substantially an extension of the end wall 47 and the upright wall 52, respectively. The lateral spacing, however, between the side walls 64 and 66 is slightly less than the lateral spacing between the end wall 47 and the upright wall 52. This is best illustrated in FIGS. 3 and 5. The spacing between the outside surfaces of the side walls 64 and 66 is preferably just slightly less than the spacing between the rear walls 17 and 22 and the middle wall 18 as shown in FIG. 7 to facilitate reception in the channel 24. 
     The bight 67 (FIG. 2) is integrally connected to the upright wall 53 and is the only portion of the H-shaped guide so connected to the upright wall 53. The bight 67 is located intermediate the height of the side walls 64 and 66 and is preferably midway between the top and bottom edges of the upright wall 53. In this particular embodiment, the bight 67 is contained in the same plane as is the axis of the axle 58. 
     The top and bottom edges of the side walls 64 and 66 of the H-shaped guide 63 have identical upstanding tabs 68 thereon. Referring to FIG. 8, the tab 68 has a ramp portion 69 extending from the top edge 71 of the wall 64. The purpose of this ramp will be explained below. The height of the side walls 64 and 66 is preferably slightly less than the vertical spacing between the top wall 16 and the bottom wall 21 to additionally facilitate a snug reception of the H-shaped guide 63 therein as further shown in FIG. 7. 
     The pulley housing 46 additionally includes a platelike guide 72 (FIGS. 2 and 3) extending from the side wall 50 in a direction parallel to the bight 67 of the H-shaped guide 63. The platelike guide 72 has a cylindrical boss 73 extending from both the top and bottom surfaces thereof. An opening 74 extends through the boss 73 and is adapted to receive a screw 75 therein. The positioning of the guide 72 on the side wall 50 is best illustrated in FIG. 7. The spacing is such that the guide 72 will rest on the upper surface of the flanges 41 and 42 so that when the screw 75 is threadedly received into the opening 74 in the boss 73, the end of the screw will engage the underside of the top wall 16 of the traverse rod 11 to urge the guide 72 into a snug engagement with the flanges 41 and 42. The head of the screw 75 is accessible through the opening 27 in the channel 28 of the traverse rod. 
     The pulley housing 46 has an upright wall 76 integral with and extending between the upright wall 52 and the end wall 49 and parallel to and equidistant from the side walls 48 and 50. The side wall 48, the end wall 49 and the upright walls 76 and 52 define a compartment 77. In addition, the side wall 50, the end wall 49 and the upright walls 76 and 52 define a compartment 78. Compartments 77 and 78 are closed off at the top and open downwardly as best illustrated in FIG. 2. The side wall 48 has an arcuately shaped access opening 79 providing access to the compartment 77 in a direction perpendicular to the side wall 48. A pair of axially aligned openings 81 are provided in the upright wall 76 and the side wall 50 and have an axis 82 (FIG. 4) that is colinear with the axis of the arcuate access opening 79. 
     An elongated axle or shaft 83 is received into the axially aligned openings 81 and is rotatably supported therein. The axle 83 has an annular groove 84 in the periphery thereof, which annular groove 84 is located in the compartment 78 as shown in FIG. 6. The axle 83 has a pulley 85 secured on one end thereof and located in the compartment 77 upon assembly and as shown in FIG. 6. The pulley 85 has plural pockets around the periphery thereof adapted to engage a beaded strand 86. That is, the beads embodied within the strand are sequentially received in the individual pockets 87 so that, as the beaded strand 86 is pulled in one direction, the beaded strand will function to rotate the pulley and thereby rotate the axle 83. 
     A locking member 91 is pivotally secured to the pulley housing 46 through buttonlike members 92 on the locking member 91 being received into holes 93 in the opposing surfaces of walls 50 and 76, as illustrated in FIG. 5. In other words, the locking member 91 is pivotable about the axis of the buttons 92. The locking member 91 has a rib or flange 94 thereon which is received into the annular groove 84 on the axle 83 when the locking member 91 is in the closed position illustrated in FIGS. 5 and 6. The locking member 91 is held in its locked position by further buttonlike members 95 being received into a hole 96 in the wall 76 and in an elongated slot 97 provided in the wall 50. 
     In this particular embodiment, the axle 83 has an opening 98 in one end thereof and has a key 99 fixedly disposed therein. 
     The end wall 49 has a pair of flanges 100 and 101 at the upper and lower edges thereof which project in a direction perpendicularly frontwardly away from the plane of the end wall 49. These flanges are colinear with the flanges 37 and 38, respectively, on the traverse rod 11 and thus define a continuation of the trough 39. 
     An elongated strip of fabric can, if desired, be adhesively secured to the front facing surface of the trough 39, namely, the front side of the front wall 19 and the front side of the wall 49. The fabric would preferably match the fabric of the drapery material or vertical blind material. 
     A cover plate 102 is provided having plural prongs 103 thereon which are receivable into openings 104 in the side wall 48 of the pulley housing 46. The end plate 102 effectively closes off the arcuate opening 79 to close off access to the pocketed pulley 85 as best shown in FIG. 1. 
     The pulley housing is preferably made of thermoplastic material and has a generally uniform wall thickness over the major portion thereof. This uniform wall thickness facilitates an even curing of the material following the injection of the material into a mold thereby maintaining desired tolerances. 
     Although a particular preferred embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized that variations or modifications of the disclosed apparatus, including the rearrangement of parts, lie within the scope of the present invention.