Patent Application
20190021558
Various embodiments relate to paper roll support assemblies and components to facilitate mounting and removal of paper rolls to the support assembly.
Paper roll holders often require a user to disassemble a portion of the paper roll holder to replace the paper roll. For example, a removable bar may extend between two mounts to support the paper roll. The bar may have a telescoping feature so that a user may disengage the bar from the mounts, place a paper new roll upon the bar, and engage the bar to the mounts with the new paper roll.
Other examples of paper roll holders have various pivot assemblies to assist in replacing paper rolls. These pivot assemblies, however, may not include robust components to facilitate easy replacement of paper rolls.
According to at least one embodiment, a paper roll assembly is provided with first and second plates and first and second arm assemblies. Each of the first and second plates defines a through-hole and includes two plate tabs spaced from one another and located adjacent the through- hole on a plate inner surface. Each of the first and second arm assemblies is arranged with one of the first and second plates for rotation independent of the plate. Each arm assembly includes an arm secured to an internal shaft extending through the through-hole. Each internal shaft includes a first shaft tab and a second shaft tab extending from the internal shaft. One of the internal shafts is arranged with one of the plates so that rotation of the internal shaft is constrained to facilitate mount or removal of the paper roll by contact between one of the two plate tabs and one of the first shaft tab and the second shaft tab. A spring may be disposed upon one of the internal shafts to bias rotation of one of the internal shafts toward an at-rest position. The spring may include a first spring extension and a second spring extension. The spring may be arranged within a cavity defined by one of the first and second plates such that the first spring extension contacts one of the two plate tabs when the internal shaft is in the at-rest position and the second spring extension contacts another one of the two plate tabs when the internal shaft is in a roll release position. Each internal shaft may further include an inner surface defining a cavity extending a length of the internal shaft. Each inner surface may further define a ledge sized for a head of a fastener to rest upon when the fastener extends through the cavity and is secured to one of the first and second arm assemblies. Each of the first and second arm assemblies may include a first portion to secure to a fastener and extend along a first axis and a second portion to mount a paper roll thereupon and extend along a second axis oriented perpendicular to the first axis. An anchor assembly may be secured to a surface and include an upper edge sized for a lip of one of the first and second plates to rest upon. Each of the first and second plates may be sized to conceal a respective anchor assembly mounted to a support surface.
According to at least another embodiment, a wall mount paper roll assembly is provided with first and second housings, first and second arm assemblies, first and second internal shafts, and a fastener. Each of the first and second housings includes a through-hole and two or more housing tabs spaced radially about the through-hole at approximately ninety-degree intervals relative to a center of the through-hole. The first and second arm assemblies are for supporting a paper roll. Each of the first and second internal shafts includes a shaft cavity extending a length of a corresponding internal shaft and a shaft ledge. The fastener is for extending through one of the first and second internal shafts and one of the first and second housings and includes a head. Each of the shaft ledges is sized for a portion of the head to rest thereupon and one end of the fastener is for securing to one of the first and second arm assemblies so that one of the first and second arm assemblies rotates with one of the internal shafts independent of either of the first and second housings and so that the paper roll may be mounted or removed. Each of the first and second housings may define a cavity about the two or more housing tabs sized so the two or more housing tabs do not contact a supporting surface. Each of the first and second internal shafts may define a diameter sized to position each of the first and second internal shafts about a cylindrical portion of one of the first and second arm assemblies. Each of the first and second internal shafts may include a pair of shaft tabs sized for contact with the two or more housing tabs to constrain rotation of each of the first and second internal shafts. The assembly may further include a pair of springs. Each spring may be disposed upon one of the first and second internal shafts to bias rotation of the one of the first and second internal shafts toward an at-rest position. Each of the pair of springs may include a first spring extension and a second spring extension. Each of the springs may be arranged within a cavity defined by one of the first and second housings such that the first spring extension contacts one of the two or more housing tabs when one of the first and second internal shafts is in the at-rest position and the second spring extension may contact another one of the two or more housing tabs when one of the first and second internal shafts is in a paper roll release position. Each of the first and second housings may further include a lip sized for resting upon an edge of an anchor assembly mounted to a surface. Each of the first and second housings may be sized to conceal the anchor assembly retaining the first and second housings upon a surface.
According to at least another embodiment, a paper roll assembly is provided with a housing, an arm, an internal shaft, a pair of shaft tabs, and a fastener. The housing defines a housing through-hole. The internal shaft extends through the housing through-hole and defines a shaft through- hole. The pair of shaft tabs is arranged with the housing to constrain rotation of the internal shaft. The fastener is for extending through the housing through-hole and the shaft through-hole and includes a fastener end for securing to the arm so the arm and internal shaft rotate with one another. The housing and the arm are arranged with one another for mounting upon a surface so that a paper roll may rest upon the arm between the housing and an external obstacle. The housing may further define a cavity about two or more housing tabs located adjacent the housing through-hole. The cavity may be sized so the two or more housing tabs do not contact a surface supporting the housing. The arm may be arranged with the housing so that a portion of the arm for supporting the paper roll and the internal shaft may rotate between an at-rest position to a roll release position approximately ninety degrees from the at-rest position. A spring may be disposed upon the internal shaft to bias rotation of the internal shaft toward an at-rest position and include first and second spring extensions arranged with a cavity defined by the housing such that the first spring extension contacts a first tab of the housing when the internal shaft is in an at-rest position and the second spring extension contacts a second tab of the housing when the internal shaft is in a paper roll release position. The housing may further include a lip sized for resting upon an edge of an anchor assembly mounted to a surface. The housing may be sized to conceal the anchor assembly when mounted to the surface.
As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present embodiments.
For example,
The second arm assembly 14 may include a second bulb member 48 secured to the second arm 32 so that the second bulb member 48 and the second arm 32 rotate with one another. The second bulb member 48 may be attached to a second wall mount 50 for rotation. For example, an internal shaft 54 may extend through an opening 56 defined by the second wall mount 50. A first end 60 of the internal shaft 54 may be secured to the second bulb member 48 so that the internal shaft 54 rotates with the second arm 32 and the second bulb member 48 while the second wall mount 50 is secured to a wall or other surface.
A spring 64 may operate with the second wall mount 50, a first shaft tab 66 of the internal shaft 54, and a second shaft tab 68 of the internal shaft 54 to constrain rotation of the second arm 32. The second wall mount 50 may include constraint tabs (further described below) within a cavity defined by the second wall mount 50. The constraint tabs may be may be radially spaced about the opening 56. A first spring extension 70 and a second spring extension 72 may operate with the constraint tabs and the shaft tabs such that the second arm 32 may rotate from zero to ninety degrees relative to the first axis 36. For example, rotation of the second arm 32 directs rotation of the internal shaft 54. The constraint tabs are arranged within the cavity of the second wall mount 50 to contact the first shaft tab 66 at a zero position and the second shaft tab 68 at a ninety-degree position. The spring 64 is arranged with the internal shaft 54 to return the internal shaft 54 from the ninety-degree position to the zero position.
The second arm assembly 14 may include an anchor assembly, such as an anchor assembly 76, to secure the second wall mount 50 to a wall or surface. The anchor assembly 76 may include a pair of wall anchors 78, a pair of fasteners 80, and a plate 82. Each of the wall anchors 78 may be mounted to a wall and each of the pair of fasteners 80 may be secured to one of the wall anchors 78 through openings of the plate 82 to secure the plate 82 to the wall. The plate 82 may include an upper portion 83 for a lip 84 of the second wall mount 50 to rest thereupon. The anchor assembly 76 and the second wall mount 50 may be arranged with one another so that the internal shaft 54 may rotate independent of the second wall mount 50.
It is contemplated that the components of the first arm assembly 12 and the second arm assembly 14 may have various shapes which differ from the examples shown in
The housing 106 may define a cavity 120 open to a through-hole 122. An inner surface of the housing 106 may define housing tabs 126. The housing tabs 126 may be radially spaced from one another about and edge of the through-hole 122. For example, each of the housing tabs 136 may be radially spaced from one another at ninety degree intervals about a center of the through-hole 122.
The arm 108 may include a first portion 130 and a second portion 132. The first portion 130 and the second portion 132 may be oriented perpendicular to one another. For example, a first axis 140 may extend through a center of the first portion 130 and a second axis 142 oriented perpendicular to the first axis 140 may extend through a center of the second portion 132. The first axis 140 may also extend through a center of the internal shaft 104 and a center of the housing 106.
A fastener 146 may rotatably secure the housing 106 and the arm 108 to one another. For example, the fastener 146 may extend through the internal shaft 104, through a spring 148, and through the housing 106. The spring 148 may be secured to the internal shaft 104 and includes a first spring extension 150 and a second spring extension 152. Each of the spring extensions extends from the spring to bias movement of the internal shaft 104 and the arm 108. For example, the spring 148 may be arranged with the internal shaft 104 and the housing tabs 126 to bias rotation of the arm 108 to return to an at-rest position. A first end 154 of the fastener 146 is secured to the first portion 130 of the arm 108. A head 156 of the fastener 146 is sized to rest upon the ledge 118 of the internal shaft 104 so that the internal shaft 104 and the arm 108 may rotate independent of the housing 106.
The first spring extension 150 and the second spring extension 152 are each arranged relative to the internal shaft 104 to bias rotation of the internal shaft 104 to return to the at-rest position. For example, the first spring extension 150 may remain in contact with one of the housing tabs 126 throughout rotation of the internal shaft 104. The second spring extension 152 may contact one of the housing tabs 126 when the internal shaft 104 is rotated to the roll release position.
An anchor assembly (not shown) may secure the paper roll assembly 100 to a support surface. For example, the anchor assembly may include wall anchors, a plate, and fasteners for extending through the plate and into the wall anchors. The plate may have an edge for a lip of the housing 106 to rest upon. The housing 106 and the anchor assembly may be arranged with one another so the anchor assembly is concealed when the housing is mounted thereto.
While various embodiments are described above, it is not intended that these embodiments describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the present disclosure. Additionally, the features of various implementing embodiments may be combined to form further embodiments of the invention.
