This invention relates generally to shower rods and more particularly to a curved shower rod having a bracket which supports a torsional (rotational) load.
Curved shower rods are well known in the art and are used to create more space within the shower enclosure than is generally available with a straight rod by angling the upper portion of the shower curtain away from the shower enclosure to give the user more upper body space. Referring to
Unfortunately, current designs have undesirable characteristics. This is because when a shower curtain is supported by the curved rod system, the combination of the weight of the shower curtain and the offset configuration creates a torsional downward force FD on the rod system. This force is exacerbated when a user pulls on the curtain, for example, when opening and closing the curtain, subjecting the rod to additional torsional forces. As a result, the rod ‘wants’ to rotate in the direction of the torsional force FD (downwardly toward the floor) about an axis X that is substantially perpendicular to the wall at the point where the curved rod system is connected to and supported by the wall. Accordingly, not only is there a torsional stress on the connection point between the curved rod system and the supporting wall, but there is a downward stress on the on the connection point between the curved rod system and the supporting wall caused by the weight of the curved rod system and shower curtain.
Furthermore, due to the configuration of the curved rod, the torsional and weight (downward) stresses are constantly present at the connection points between the curved rod system and the supporting wall. This is because no matter where on the curved shower rod the shower curtain is located, the weight of the shower curtain will generate a torsional load on the connectors. Accordingly, the connectors used to mount current curved shower bars must be strongly anchored to the shower wall to adequately counter these torsional and downward forces.
This characteristic requires that current curved shower rods be strongly affixed to the shower walls using screws or other physical mounting means. This is undesirable for several reasons. Firstly, tools and other hardware (such as screws) are required to install these rods. Secondly, if the rods are ever removed or replaced, multiple mounting holes are present in the walls and are unsightly unless they are repaired. And thirdly, because a large number of tub/shower combinations have tiled walls (or are constructed using plastic inserts), current curved shower rods systems cannot be used.
A curved shower rod assembly is provided and includes a first end rod and a second end rod, wherein each of the first end rod and second end rod include a rod bracket end and a rod interface end, the rod bracket end and rod interface end being separated by a rod curved portion and wherein the rod interface end is hollow. A center rod is also included, wherein the center rod is hollow and includes a center rod inner diameter sized to movably contain the rod interface ends. Additionally, a screw rod having a first end with right-hand threads and a second end with left-hand threads is also provided, wherein the screw rod is securely contained within the center rod. A first threaded sleeve and a second threaded sleeve are included, wherein the first and second threaded sleeves include bi-directional internal threads, wherein the first threaded sleeve is located within the rod interface end of the first end rod and the second threaded sleeve is located within the rod interface end of the second end rod, and wherein the rod interface end of the first end rod is located within the center rod such that the first threaded sleeve is proximate the first end of the screw rod, and the rod interface end of the second end rod is located within the center rod such that the second threaded sleeve is proximate the second end of the screw rod. Furthermore, a first mounting bracket and a second mounting bracket are included, wherein each of the first and second mounting brackets are oblong in shape and include a bracket top and a bracket bottom. The bracket top defines a socket cavity configured to contain the rod bracket end of the first and second end rod, and the bracket bottom includes a plurality of footpads.
A curved shower rod is provided and includes a first end rod and a second end rod, wherein each of the first end rod and second end rod include a rod bracket end and a rod interface end, the rod bracket end and rod interface end being separated by a rod curved portion and wherein the rod interface end is hollow. Additionally, a center rod is included, wherein the center rod is hollow and includes a center rod inner diameter sized to movably contain the rod interface ends. Furthermore, a screw rod having a first end with right-hand threads and a second end with left-hand threads is included, wherein the screw rod is securely contained within the center rod. Moreover, a first threaded sleeve and a second threaded sleeve are included, wherein the first and second threaded sleeves include bi-directional internal threads, wherein the first threaded sleeve is located within the rod interface end of the first end rod and the second threaded sleeve is located within the rod interface end of the second end rod, and wherein the rod interface end of the first end rod is located within the center rod such that the first threaded sleeve and the first end of the screw rod are threadingly associated and the rod interface end of the second end rod is located within the center rod such that the second threaded sleeve and the second end of the screw rod are threadingly associated.
A mounting bracket for mounting a curved shower rod within a shower enclosure between a pair of shower walls is provided, wherein the curved shower rod mounting bracket includes a first mounting bracket, and a second mounting bracket. The first mounting bracket and second mounting bracket are oblong in shape and includes a bracket front, a bracket rear, a bracket top and a bracket bottom, the bracket top defining a socket cavity and the bracket bottom including a first footpad and a second footpad, wherein the socket cavity is located proximate the bracket front and configured to contain the rod bracket end of the first and second end rod, and wherein the first footpad is located proximate the bracket front and the second footpad is located proximate the bracket rear.
The foregoing and other features and advantages of the present invention should be more fully understood from the accompanying detailed description of illustrative embodiments taken in conjunction with the following Figures in which like elements are numbered alike in the several Figures:
In accordance with the present invention, a curved shower rod which with brackets is provided where the rod includes new and novel features that allow for easy and ready installation and operation without the need to put holes in the supporting shower walls and without the use of tools or other hardware, such as screws and screw drivers. Additionally, the curved shower rod of the present invention includes new and novel features that provide the rod with the capability of supporting a load of approximately one pound per lineal foot of shower rod (or more) without twisting in space due to torsional forces exerted by the weight of the rod, the shower curtain and/or the opening/closing of the shower curtain during use. These new and novel features are described hereinafter with reference to the best mode and several other embodiments.
It should be appreciated that the curved shower rod of the present invention may be configured in multiple adjustable lengths, such as 5 foot or 6 foot. As described further herein, one way the advantages of the present invention may be achieved is by having multiple rod ends that are movably adjustable relative to a center rod piece to cause the ends to compress the rod brackets against the supporting shower wall, where each side of the curved shower rod may include only one bracket for a more aesthetically pleasing appearance. Another advantage of the curved shower rod of the present invention is that because there are more than two rod pieces, the disassembled curved shower rod can be packaged and stored in a smaller package than current curved shower rods.
In accordance with one embodiment of the invention and referring to
Referring to
Referring to
Referring to
In still yet another embodiment, the retaining strip may include one or more barbs that protrude from the surface of the retaining strip such that if the screw rod 108 rotates relative to the center piece 106 the one or more barbs dig into the inner surface of the center piece 106 and prevent rotation of the screw rod 108 relative to the center piece 106. In another embodiment, an adhesive may be provided on the surface of the retaining strip to interact with the inner surface of the center piece 106 is also contemplated.
Referring to
Referring to
Referring to
Additionally, referring again to
Referring to the several figures, the shower rod assembly 100 is assembled by configuring the screw rod 108 such that the keyed first and second rod ends 130, 132 are mated together to form a single screw rod 108 (See
Referring to
The center piece 106 is rotated to cause the ends of the screw rod 108 to threadingly engage with the threads of the threaded sleeves 110 of the first and second curved end pieces 102, 104. In this way, the length of the curved shower rod 100 is adjustable by rotating the center piece 106. This is because when the center piece 106 is rotated relative to the first and second curved end pieces 102, 104 the screw rod 108 rotates as well. When the screw rod 108 is rotated in one direction, the threaded ends of the screw rod 108 threadingly engage the threads within the threaded sleeves 110 to cause the first and second curved end pieces 102, 104 to slide within the center piece 106 and move outwardly away from the center of the screw rod 108. When the screw rod 108 is rotated in the opposite direction, the threaded ends of the screw rod 108 threadingly engage the threads of the threaded sleeves 110 to cause the first and second curved end pieces 102, 104 to slide within the center piece 106 and move inwardly toward the center of the screw rod 108. In this manner, the length of the curved shower rod 100 is adjusted.
Referring to the several figures and
Referring to
In order to remain in place without rotation, the mounting bracket 114 must counter the forces FL applied by the curtain and pulling of a user. Thus, each typical mounting bracket 114 must provide an opposing vertical force V in the Z-axis direction to resist the vertical component of force FL and each bracket 114 must also provide a moment MV in the y-z plane to resist the torque created at socket 146 in the mounting bracket 114, where the end of the rod is located. These are accomplished via frictional engagement between the mounting bracket 114 (more specifically the first and second footpads 153, 155) and the shower wall 158. One way to create moment MV and resist the torque created at the socket 146 involves the length LB of the mounting bracket 114 (i.e. from the Z-axis plane) in the Y(+) direction being greater than the length LC of the mounting bracket 114 (i.e. from the Z-axis plane) in the Y(−) direction. It should be appreciated that in one embodiment the length LC from the socket 146 to the rear end 144 of the mounting bracket 114, i.e., the length LC, is about half of the length of the distance LB to the front end 162 of the mounting bracket 114.
In the generality of the invention, the length LC from the socket 146 to the rear end 144 of the mounting bracket 114, in the Y(−) direction, could be longer than shown, and it could be equal or greater than the length LB. However, in an exemplary embodiment, the mounting bracket 114 is asymmetrical, as described, to save material and avoid possible difficulties in mating an overly-long bracket with uneven shower wall surfaces.
It should be further appreciated that brackets 114 can be subject to torsional forces in the horizontal plane as well. Referring to
It is desirable for the bracket 114 (and the first and second footpads 153, 155 of the bracket 114) to maintain contact with the shower wall 158 at more than only the front end 142 of the bracket 114, i.e. at the front end 142 and the rear end 144 of the bracket 114, so that the resistive movement MV is effectively provided. Thus, in an embodiment of the invention, the first footpad 153 at the front end 142 of the bracket 114 may be made smaller, thicker or of a different material than the second footpad 155 at the rear end 144 of the bracket 114, so that the bracket 114 remains in contact despite the lifting tendency crated by moment MH.
In an additional embodiment, or in conjunction with the foregoing, the fit of the bracket end 118 of curved end pieces 102, 104 in the socket cavity 146 may be “sloppy” or loose. And the fit of the bracket pin 116 may also be “sloppy” or loose, as by means of oversized or elongated rod mounting holes 124 and mounting pin openings 148 relative to the diameter of the bracket pin 116. Thus, some bending of the curved end pieces 102, 104 could be accommodated without a lot of lifting effect.
It should also be appreciated that the first and second footpads 153, 155 of the brackets 114 may include an adhesive portion to give better frictional resistance between the first and second footpads 153, 155 and the shower wall 158. Also, the brackets 114 may be screwed to the shower wall 158. In that case, the relationship between the bracket dimensions and the offset of the shower rod will enable less stress to be applied to the screws, thereby lessening ware on the brackets 114 and/or the chance of fracturing on the shower wall 158 or will enable the use of smaller dimension screws, etc.
It is contemplated that the first and second curved end pieces 102, 104, and/or the center piece 106 may be constructed from a metallic material (for example, a metal having a wall thickness of about 0.02 inch). However, any material suitable to the desired end purpose, such as hard plastic or a composite material may be used. Furthermore, screw rod 108 may be constructed from metal, POM (acrylic) resin, metal, and/or some other suitable plastic and/or composite material. Additionally, the brackets 114 may be constructed from a strong metal, plastic and/or composite material, for instance ABS resin and the first and second footpads 153, 155 may be constructed from a rubber material, a plastic material or any other suitable material. It should be appreciated that in an exemplary embodiment, the first and second footpads 153, 155 have a Shore A Durometer of about 50-60.
In an additional embodiment, the shower rod 100 may include curved end pieces 102, 104 and a socket 146 that are keyed together to prevent rotation (for example, they may be square, triangle, hexagonal, etc. shaped) of the curved end pieces 102, 104 within the socket cavity 146. In this configuration, no mounting pin is needed and the rod is held in place by the structure defining the socket cavity 146. Additionally, in still yet another embodiment, fine adjustment screws 150 (or clips) may be provided to apply additional force to the first and second footpads 153, 155 and thus the shower wall 158 (See
While the invention has been described with reference to an exemplary embodiment, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the specification/figures and any appended claims. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
This application claims benefit of priority of the filing date of U.S. Provisional Patent Application Ser. No. 61/554,735 filed Nov. 2, 2011, the contents of which are incorporated by reference herein in its entirety.
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