Dispenser for roll of coreless web material
10383488 ยท 2019-08-20
Assignee
Inventors
Cpc classification
International classification
Abstract
A coreless web material dispenser or dispensing apparatus that includes a flexible brace that is configured to support a roll of coreless web material relative to the dispenser. The flexible brace is supported by the housing such that closing a cover of the dispensing apparatus biases a portion of the brace into operative engagement with the roll of coreless web material. Preferably, the flexible brace includes at least one protrusion that extends inwardly relative to a roll facing side of the brace and defines a rotational axis upon which the roll of the coreless web material may rotate while one or more side portions of the flexible brace limit lateral movement of the roll during dispensing events.
Claims
1. A coreless web material dispensing apparatus, the apparatus comprising: a housing having a base, a cover that is connected to the base to rotate relative to the base about an axis of rotation, and a cavity defined between the base and the cover; at least one brace extending from the base to the cover, and configured to retain a roll of web material therein; wherein, when the housing is in a closed orientation, the at least one brace receives a compression force from the cover and compresses the at least one brace into engagement with the roll of web material defining an axis of rotation of the roll of coreless web material that is generally transverse to the axis of rotation of the cover; and wherein, the compression force prohibits lateral disengagement of the at least one brace from the roll of web material.
2. The dispensing apparatus of claim 1 wherein the at least one brace comprises: an arm having a first end, a second end and a length extending between the first end and the second end; a first side extending at an angle from the first end of the arm; and a second side extending at an angle from the second end of the arm.
3. The dispensing apparatus of claim 2 wherein the at least one brace further comprises: a first protrusion extending from an inner surface of the first side towards the opposing second side; a second protrusion extending from an inner surface of the second side towards the opposing first side; and a tab extending from an outer surface of the second side towards the cover.
4. The dispensing apparatus of claim 3 wherein when the housing is in the closed orientation, the tab is configured to engage an inner surface of the cover and translate the compression force to the second side of the at least one brace.
5. The dispensing apparatus of claim 3 wherein when the housing is in the closed orientation, a distance from the inner surface of the first side to the inner surface of the second side is less than when the housing is in an opened orientation such that the at least one brace does not receive the compression force from the cover.
6. The dispensing apparatus of claim 5 wherein when the housing is in the closed orientation, the distance from the inner surface of the first side to the inner surface of the second side is approximately equal to a length of the roll.
7. The dispensing apparatus of claim 3 wherein the at least one brace further comprises a first brace configured to receive a first roll and a second brace configured to receive a second roll.
8. The dispensing apparatus of claim 1 further comprising a roll shield that is movable relative to the housing to be disposed proximate one of the at least one brace or another brace and configured to prevent access to a roll of web material disposed proximate the roll shield.
9. The dispensing apparition of claim 1 wherein the housing defines an aperture between the base and the cover when the housing is in the closed orientation.
10. The dispensing apparatus of claim 9 wherein an edge of the aperture includes a serrated edge configured to selectively sever the web material when the web material is introduced to the serrated edge.
11. A dispensing apparatus comprising: a housing having a base, a cover connected to the base and rotatable relative thereto about an axis of rotation of the cover, a cavity defined between the base and the cover, and an aperture between the base and the cover; an at least one brace extending from the base to the cover, and configured to retain a roll of web material therein, the brace comprising: an arm having a first end, a second end and a length extending between the first end and the second end; a first side extending at an angle from the first end of the arm; a second side extending at an angle from the second end of the arm; a first protrusion extending from an inner surface of the first side toward the second side; a second protrusion extending from an inner surface of the second side toward the first side; and a tab extending from an outer surface of the second side toward the cover; and wherein when the housing is in a closed orientation, the tab is configured to engage an inner surface of the cover and translate a compression force to the second arm of the at least one brace to compress the at least one brace toward the roll retained therein and defining an axis of rotation for the roll that is generally transverse to the axis of rotation of the cover; and wherein the compression force prevents lateral translation of the first protrusion away from the second protrusion.
12. The dispensing apparatus of claim 11 wherein the at least one brace comprises a first brace configured to receive a first roll and a second brace configured to receive a second roll.
13. The dispensing apparatus of claim 11 further comprising a roll shield movably disposed adjacent the at least one brace.
14. The dispensing apparatus of claim 11 wherein the cover is hingedly affixed to the base.
15. The dispensing apparatus of claim 11 further comprising a serrated edge associated with the aperture and oriented to selectively cut the web material.
16. The dispensing apparatus of claim 11 wherein when the housing is in the closed orientation, a longitudinal axis of the first protrusion is coaxial with a longitudinal axis of the second protrusion and defines the axis of rotation for the roll.
17. The dispensing apparatus of claim 16 wherein when the housing is in an opened orientation the tab is offset from the inner surface of the cover such that the longitudinal axis of the first protrusion is oriented at an angle relative to the longitudinal axis of the second protrusion.
18. The dispensing apparatus of claim 16 wherein the first protrusion is rotationally connected to the first side of the brace and the second protrusion is rotationally connected to the second side of the brace.
19. A brace configured to support a roll of coreless web material relative to a housing such that the web material can be incrementally dispensed from the housing by unrolling of the roll of coreless web material, the brace comprising: a first portion that extends in a length direction aligned with a length of the roll of coreless web material; a second portion that extends from the first portion in a crossing direction relative to the length direction associated with the first portion such that the second portion extends in a direction that is generally transverse to an axis of rotation of the roll of coreless web material; a projection that extends from the second portion in a direction generally aligned with the axis of rotation of the roll of coreless web material; and wherein the second portion is constructed to cooperate with a cover of the housing such that closing of the cover via movement of the cover in a direction that is generally transverse to the axis of rotation of the roll biases the projection into compressive engagement with the roll of coreless web material.
20. The brace of claim 19 further comprising a third portion that extends from the first portion at a location offset from and in a direction generally aligned with the second portion.
21. The brace of claim 19 wherein the first portion and the second portion are integrally formed as a one-piece body.
22. The brace of claim 19 wherein the projection is at least one of formed integrally with the second portion and removably supported by the second portion.
23. The brace of claim 19 wherein the brace is configured to be received between a base and the cover of the housing and the housing defines an aperture and a serrated knife is associated with the aperture and oriented to selectively cut the coreless web material.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) A clear conception of the advantages and features constituting the present invention, and of the construction and operation of typical mechanisms provided with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings accompanying and forming a part of this specification, wherein like reference numerals designate the same elements in the several views, and in which:
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(8) In describing the preferred embodiments of the invention which are illustrated in the drawings, specific terminology is resorted to for the sake of clarity. However, it is not intended that the invention be limited to the specific terms so selected and it is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar purpose. For example, the word connected or terms similar thereto are often used. They are not limited to direct connection but include connection through other elements where such connection is recognized as being equivalent by those skilled in the art.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(9)
(10) Referring initially to
(11) Base 20 generally defines a back wall 24 of the housing 18 while the cover 22 defined at least a portion of opposing sidewalls 26, a floor 28, a top 30 and a front 32 of dispenser 12. It is appreciated that portions of sidewalls, floor, top and front of dispenser 12 may be formed by portions of base 20. Preferably, cover 22 cooperates with base 20 in a manner that allows generally unobstructed access to the cavity 16 of dispenser 12. The housing 18 may be formed of any suitable material and is preferably formed of a plastic material.
(12) The front cover 22, which preferably includes sidewalls 26, floor 28, top 30 and front 32 of dispenser 12 may be constructed as a single piece or having a generally unitary construction and can be formed by any of injection, blow, or roto molding when formed of plastic materials. Alternatively, the various walls or panels that define housing 18 may be separately manufactured parts that are connected to one another by one or more suitable manners such as weldments, moldings, fasteners, solder, or the like.
(13) Still referring to
(14) Still referring to
(15) Turning now to
(16) Referring to
(17) A first projection or protrusion 60 extends from the inner surface 62 of the first side 52, towards the opposing second side 56, while a second projection or protrusion 64 extends from the inner surface 66 of the second side 56 towards the opposing first side 52. Additionally, one or more projections or mounting tabs 68 may extend rearwardly from the outer surface 70 of the first sides 52 towards the inner surface 72 of the back wall 24 of the base 16, while a tab 74 extends forwardly of the outer surface 76 of the second side 56 towards the inner surface 78 of the cover 22. Tabs 68 associated with each roll brace 14, 14A, 14B and back wall 24 are constructed such that each of roll braces 14, 14A, 14B can be snap-fittingly secured relative to housing 18.
(18) Although protrusions 60, 64 are shown as generally cylindrical shaped stems, it is appreciated that protrusions 60, 64 can be provided in various shapes and sizes. For instance, it is envisioned that protrusions 60, 64 can be provided as generally smooth or barbed stems constructed to be manually pressed into the center of a coreless roll of web material. It is further appreciated that protrusions 60, 64 could alternatively be constructed to cooperate with or form a detent proximate an axial centerline associated with a discrete roll of web material. It is further appreciated that protrusions 60, 64, when provided in a barbed configuration, could be constructed to removably or rotationally cooperate with the respective sides 52, 56 associated with a respective roll brace 14, 14A, 14B or be constructed as an insert having a barbed or otherwise ribbed surface configured to engage the center portion of a coreless roll of web material and include a cavity shaped to slideably and rotationally cooperate with a generally cylindrical projectionsuch as protrusions 60, 64. When provided in such a configuration, it is appreciated that the barbed inserts may be reuseable and/or disposable.
(19) Such considerations allow dispenser 12 to be used to dispense coreless rolled web material products having various axial center configurations such as only partial, incomplete, and small diameter coreless axial center portions, an axial center dimple or other depression or discontinuity, etc. Further, such considerations allow dispenser 12 to be quickly and economically configured for use with coreless rolled web material products having various axial center portion constructions. For instance, should the manufacturers of the coreless rolled web material change or otherwise alter the length or the construction of the end faces associated with the coreless rolled web material, braces 14, 14A, 14B, and/or the size, shape, and or position of protrusions 60, 64, can be replaced or manipulated to maintain operability of dispenser 12 with various configurations of the coreless rolled web material without requiring replace of the entirety of dispenser 12. It is further appreciated that, when braces 14, 14A, 14B are formed of a plastic material, one or more mold inserts or the like can be implemented such that the size, shape, and/or position of protrusions 60, 64 can be manipulated to accommodate use of braces 14, 14A, 14B, and thereby dispenser 12, with products having alternate manufacturer and/or coreless roll web material product configurations as well as other coreless rolled web material variations such as rolls of different lengths and/or widths. Such considerations further improve the versatility associated with placement and continued use of dispenser 12 as coreless rolled web material manufacturers manufacturing and/or product preferences change over time.
(20) As alluded to above and disclosed further below, tab 74 associated with second side 56 of each discrete roll brace 14, 14A, 14B is constructed to cooperate with cover 22 such that, when cover 22 is closed and a coreless roll of web material is associated with one or more of roll braces 14, 14A, 14B, each roll brace 14, 14A, 14B, and the respective protrusions 60, 64 associated therewith, are compressed into operative engagement with a respective coreless roll of web material. As used herein, the compressed operative engagement between the respective roll braces 14, 14A, 14B and the underlying coreless roll of web based material is to be understood as a selective rotational association wherein the respective roll brace and the underlying roll are associated with one another such that the roll can rotate in response to a user pull force without separation or tearing of the web based material until desired by the user. The operative rotational association is further defined as a cooperation between the discrete roll of coreless web material and the respective roll brace wherein binding or wedging of the respective roll relative to the respective roll brace is limited or otherwise mitigated to facilitate manual incremental dispensing of the entire contents of the coreless roll of web material until the discrete roll of material is depleted or otherwise consumed.
(21) Tab 74 associated with each respective roll brace 14, 14A, 14B is further constructed to facilitate placement of an initial and/or subsequent coreless roll of web material relative to the respective brace 14, 14A, 14B. As disclosed above, each arm 46 and respective sides 52, 54 of each brace 14, 14A, 14B have an at rest orientation, configuration or shape wherein protrusions 60, 64 can loosely engage and self-support a respective coreless roll of web material when the respective roll is disposed between sides 52, 54. At rest, sides 52, 54 are preferably oriented such that protrusions 60, 64 are oriented slightly axially inboard or provide a compressive force associated with a dimension associated with the respective end faces of a respective roll of coreless web material. Tab 74 can be gripped by the user when dispenser 12 is open such that side 56 can be displaced in an outward axial direction or a direction generally aligned with the intended axis of rotation of the associated coreless roll of web material relative to side 54 such that a coreless roll of web material can be more conveniently positioned between the terminal free ends of protrusions 60, 64. Releasing tab 74, and thereby the deflection of side 56 relative to side 52, allows protrusions 60, 64 to engage the coreless center portion of a discrete roll positioned therebetween. Preferably, when tab 74 released, the respective brace 14, 14A, 14B returns toward the at rest orientation and provides a contact engagement between protrusions 60, 64 and the coreless roll of web material that is sufficient such that protrusions 60, 64 engage and support the respective roll. It is appreciated that in some configuration, manual manipulation of side 56 toward side 52 of the respective brace 14, 14A, 14B may provide overlapping or more robust frictional interaction between protrusions 60, 64 and the underlying roll of web material to provide a more secure supported interaction therebetween prior to the closing of cover 22 of dispenser 12.
(22) In one embodiment of the present invention, shown in
(23) Returning to
(24) In the embodiment of the present invention in which the roll brace 14 is in the relaxed position, as shown in
(25) Turning now to
(26) Regarding of the orientation of the tab as being associated with either of side 56 of brace 14, 14A, 14B or the interior surface of cover 22, as a result of this compression force, the roll brace 14 transitions from the relaxed or at rest position shown in
(27) In the embodiment of the present invention in which the roll brace 14 is in the contracted position, as shown in
(28) In use, and in accordance with one embodiment of the present invention, the dispenser 12 is placed in an open position by means of pivoting the cover 22 away from the base 20, about hinges 82. In the open orientation, the first and second roll braces 14A, 14B will expand into their relaxed positions, which is to say that the distance from the first protrusion 60 to the second protrusion 64 expands to a distance approximately equal to or slightly greater than a width of the coreless roll of web material, as described above. A first coreless roll of web material is then inserted into the first roll brace 14A, such that the first and second protrusions 60, 64 are aligned with the relative center of the roll. Similarly, a second coreless roll of web material is then inserted into the second roll brace 14B, such that the first and second protrusions 60, 64 are aligned with the relative center of the roll. The roll shield 44 is then maneuvered into its starting position, adjacent the first roll brace 14A, as shown in
(29) The dispenser of the present invention may have other applications aside from use with rolls of web material, such as but not limited to tissue paper, hand towel, and toilet paper. Although the invention has been herein shown and described in what is perceived to be the most practical and preferred embodiments, it is to be understood that the invention is not intended to be limited to the specific embodiments set forth above. Rather, it is recognized that modifications may be made by one of skill in the art of the invention without departing from the spirit or intent of the invention and, therefore, the invention is to be taken as including all reasonable equivalents to the subject matter of the appended claims. The present invention has been described in terms of the preferred embodiment, and it is recognized that equivalents, alternatives and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.