Coreless Roll Mounting Apparatus
An apparatus for mounting a coreless roll that comprises a first and/or second component with a roll mounting surface comprising a radius that is substantially equal to the inner radius of the roll such that the roll mounting surface supports the coreless roll when the roll mounting surface is disposed within the cavity; and a tapered guiding surface coupled to a distal end of the roll mounting surface that transitions from a radius less than the radius of the roll mounting surface to a radius substantially equal to the radius of the roll mounting surface such that the tapered roll guiding surface guides a free end of the coreless roll formed in the cavity against the inner circumference of the roll when the apparatus is inserted into the cavity.
The present invention relates to methods and devices for mounting paper rolls, in particular to methods and devices for mounting coreless paper roles on devices, such as printers, without damaging the paper roles.
BACKGROUND OF THE INVENTIONIt is common for labels or paper used in printing to be in the form of a roll. The most common technology involves wrapping a continuous sheet of labels or paper 400 around a cardboard core 410 forming a cored roll, as shown in
Nonetheless, technology is moving away from cored rolls, as rolls are now made without the internal core, as shown in
Mounting elements such as those depicted in
What is needed is a mounting apparatus that enables a coreless roll to be mounted to a dispenser without damaging the free end formed in the cavity of the role. It would be beneficial if the mounting apparatus were in the form of an adapter that secures the enables a coreless role to be secured to a dispenser designed for cored paper roles.
SUMMARY OF THE INVENTIONAccordingly, it is an object of the present invention to provide an apparatus for mounting a coreless roll that comprises a first and/or second component with a roll mounting surface comprising a radius that is substantially equal to the inner radius of the roll such that the roll mounting surface supports the coreless roll when the roll mounting surface is disposed within the cavity; and a tapered guiding surface coupled to a distal end of the roll mounting surface that transitions from a radius less than the radius of the roll mounting surface to a radius substantially equal to the radius of the roll mounting surface such that the tapered roll guiding surface guides a free end of the coreless roll formed in the cavity against the inner circumference of the roll when the apparatus is inserted into the cavity. It is preferable that the second component detachably couples to the first component.
It is another object of the invention for the first and/or second components to comprise a base coupled to the proximal end of the mounting surface, wherein the base comprises an outer radius that is greater than the inner radius of the coreless role such that a surface of the base extending in the direction of the outer radius of the role comes in to flush contact with a surface of the role extending from the inner radius to the outer radius with the mounting surface is disposed in the cavity. The base can comprise a coupling element that detachably secures the proximal end of either component to a mounting element that supports the apparatus. The base can further comprise a friction surface, such as friction bumps, disposed on a surface of the base extending in the direction of the outer radius opposite the base contact surface.
It is a further object of the invention for the first and/or second components to comprise an introduction element that detachably couples the first and second components. Preferably first and second introduction elements couple the first and second components. Such an embodiment can be provided by a first introduction element with a cavity that is open towards the distal end of the first introduction element and comprises a threaded surface on an inner surface of the first introduction element forming the cavity, the second introduction element comprises a threaded surface on an exterior surface forming the second introduction element, and the first and second components are detachably coupled by aligning the distal ends of the first and second components and radially rotating the first component relative to the second component such that the first and second components move in an axial direction.
Other objects of the invention and its particular features and advantages will become more apparent from consideration of the following drawings and accompanying description.
The present invention provides for a coreless paper roll mounting apparatus that enables a coreless paper roll to be secured to a dispenser, such as a printer.
Introduction elements 22, 2 assist a user in inserting the first and second components 21, 1 into the core 210 of the coreless role. In order to assure that the free end 230 of the role is not damaged by the introduction elements, the outer radii of these elements are less than the internal diameter of the coreless roll. The outer radii of these elements should be sufficiently small such that the introduction elements 22, 2 do not damage or bend the free end 230 when the introduction elements are inserted in to cavity 210. Preferably, the outer radii of these elements are small enough such that they do not come into contact with the free end 230.
Introduction elements 22, 2 also enable the first and second components 21, 1 to be detachably coupled together. As shown in the preferred embodiment of
Introduction elements 22 and 2 are coupled to and extend away from tapered guiding surfaces 20 and 10 respectively. Tapered guiding surfaces 20, 10 comprise an expanding outer diameter in the proximal direction of each respective component. Preferably the outer diameter of each tapered guiding surface provides a sloped transition from the outer diameter of an introduction element to the outer diameter of a mounting surface. The sloped transition of the tapered guiding surfaces 20, 10 enable the free end 230 of the coreless roll to be placed against the internal diameter of the coreless roll without bending or damaging the free end. Once the introduction elements 22, 2 are aligned and as the first and second components are drawn together in the axial direction, the increasing diameter of the tapered guiding surfaces 20, 10 urge the free end towards the inner surface of the coreless roll and eventually enable a surface of the free end to be in complete contact with inner surface.
Tapered guiding surfaces 20, 10 are couple to and extend away from roll mounting surfaces 26, 6 respectively. Roll mounting surfaces 26, 6 comprise an outer diameter that is substantially equal to the inner diameter of coreless roll 220. When the first and second components are drawn together in the axial direction and the free end 230 is urged against the inner surface of roll 220 by the tapered guiding surfaces 20, 10, the roll mounting surfaces 26, 6 become disposed within cavity 210. With the roll mounting surfaces 26, 6 disposed within the cavity, roll 220 is supported by the mounting apparatus such that the roll 220 and the mounting apparatus remain axially aligned.
Coupled to the proximal end of the roll mounting surfaces 26, 6 are bases 23, 3. These bases comprise an outer diameter that is greater than the internal diameter of roll 220 such that when the components are drawn together, inner base surfaces 31, 11 come in to flush contact the end surfaces 250. Bases 23, 3 enable coreless roll 200 to be secured to the mounting apparatus in the axial direction.
Bases 23, 3 further comprise friction elements 30 on the outer surfaces of the bases.
Bases 23, 3 further enable the mounting apparatus to be secured to mounting elements of a rolled paper dispensing apparatus, such as printer 300. Bases 23, 3 comprise coupling elements 32, 12 that detachably secure the mounting apparatus to mounting elements, such as elements 310. As shown in
The present invention has been described above in terms of a presently preferred embodiment so that an understanding of the present invention can be conveyed. However, many alternative designs and structural arrangements are possible without departing from the principle of the invention. The scope of the present invention should therefore not be limited by the embodiments illustrated, but rather it should be understood that the present invention has wide applicability with respect to mounting apparatuses for coreless roles. All modifications, variations, or equivalent elements and implementations that are within the scope of the appended claims should therefore be considered within the scope of the invention.
Claims
1. A system for dispensing paper from a coreless roll, comprising:
- a coreless roll of paper comprising a first radius corresponding to an outer circumference of the roll and a second radius corresponding to an inner circumference of the roll, wherein the inner circumference forms a cavity from a first end to a second end of the roll; and
- a coreless roll mounting apparatus, comprising:
- a first component with a first roll mounting surface comprising a radius that is substantially equal to the second radius of the roll such that the first roll mounting surface supports the coreless roll when the first roll mounting surface is disposed within the cavity; and
- a first tapered guiding surface coupled to a distal end of the roll mounting surface that transitions from a radius less than the radius of the roll mounting surface to a radius substantially equal to the radius of the roll mounting surface such that the tapered roll guiding surface guides a free end of the coreless roll formed in the cavity against the inner circumference of the roll when the apparatus is inserted into the cavity.
2. The apparatus of claim 1, further comprising a second component that detachably couples to the first component, the second component comprising a second roll mounting surface with a radius that is substantially equal to the second radius of the roll such that the roll mounting surface supports the coreless roll when the roll mounting surface is disposed within the cavity.
3. The apparatus of claim 2, wherein the second component further comprises a second tapered roll guiding surface coupled to a distal end of the second roll mounting surface that transitions from a radius less than the radius of the second roll mounting surface to a radius substantially equal to the radius of the second roll mounting surface such that the second tapered roll guiding surface guides a free end of the coreless roll formed in the cavity against the inner circumference of the roll when the second component is inserted into the cavity.
4. The apparatus of claim 1, wherein the first component further comprises a first base coupled to the proximal end of the first mounting surface, wherein the first base comprises an outer radius that is greater than the second radius of the coreless roll such that a surface of the first base extending in the direction of the outer radius comes in to flush contact with a surface of the roll extending from the second radius to the first radius with the first mounting surface is disposed in the cavity.
5. The apparatus of claim 4, wherein the first base comprises a first coupling element that detachably secures the proximal end of the first component to a first mounting element that supports the apparatus.
6. The apparatus of claim 5, wherein the first coupling element is a cavity formed in the first base that comprises a circumference that is substantially equal to an outer circumference of the first mounting element.
7. The apparatus of claim 1, further comprising a first introduction element coupled to the distal end of the first tapered guiding surface comprising a radius that is less than the second radius of the roll.
8. The apparatus of claim 7, wherein the first introduction element detachably couples the first component to a second component comprising a second roll mounting surface with a radius that is substantially equal to the second radius of the roll such that the roll mounting surface supports the coreless roll when the roll mounting surface is disposed within the cavity.
9. The apparatus of claim 8, wherein the second component further comprises a second tapered roll guiding surface coupled to a distal end of the second roll mounting surface that transitions from a radius less than the radius of the second roll mounting surface to a radius substantially equal to the radius of the second roll mounting surface such that the second tapered roll guiding surface guides a free end of the coreless roll formed in the cavity against the inner circumference of the roll when the second component is inserted into the cavity.
10. The apparatus of claim 9, wherein the second component further comprises a second introduction element coupled to the distal end of the second tapered guiding surface comprising a radius that is less than the second radius of the roll.
11. The apparatus of claim 10, wherein the first introduction element and the second introduction element interact such that the first component and second component are detachably coupled.
12. The apparatus of claim 11, wherein the first introduction element forms a cavity that is open towards the distal end of the first introduction element and comprises a threaded surface on an inner surface of the first introduction element forming the cavity, the second introduction element comprises a threaded surface on an exterior surface forming the second introduction element, and the first and second components are detachably coupled by aligning the distal ends of the first and second components and radially rotating the first component relative to the second component such that the first and second components move in an axial direction.
13. The apparatus of claim 12, wherein the first base or the second base further comprise a friction surface disposed on a surface of the first or second bases extending in the direction of the outer radius opposite the base contact surface.
14. The apparatus of claim 13, wherein the friction surface comprises one or more elements selected from a group consisting of friction bumps, score marks, and dimples.
15. An apparatus for mounting a coreless roll comprising a first radius corresponding to an outer circumference of the roll and a second radius corresponding to an inner circumference of the roll, wherein the inner circumference forms a cavity from a first end to a second end of the roll, the apparatus comprising:
- a first component with a first roll mounting surface comprising a radius that is substantially equal to the second radius of the roll such that the first roll mounting surface supports the coreless roll when the first roll mounting surface is disposed within the cavity;
- a first base coupled to the proximal end of the first mounting surface, wherein the first base comprises an outer radius that is greater than the second radius of the coreless roll such that a surface of the first base extending in the direction of the outer radius comes in to flush contact with a surface of the roll extending from the second radius to the first radius with the first mounting surface is disposed in the cavity;
- a friction surface disposed on a surface of the first base extending in the direction of the outer radius opposite the base contact surface, wherein the friction surface is selected from a group consisting of friction bumps, score marks, dimples and combinations thereof; and
- a second component that detachably couples to the first component by aligning the distal ends of the first and second components and radially rotating the first component relative to the second component such that the first and second components move in an axial direction.
16. The apparatus of claim 15, wherein the first component further comprises a first introduction element with a radius that is less than the second radius of the roll that couples the first component to the second component.
17. The apparatus of claim 16, wherein the second component further comprises a second introduction element with a radius that is less than the second radius of the roll.
18. The apparatus of claim 17, wherein the first introduction element forms a cavity that is open towards the distal end of the first introduction element and comprises a threaded surface on an inner surface of the first introduction element forming the cavity and the second introduction element comprises a threaded surface on an exterior surface forming the second introduction element such that the first and second components are threadedly coupled.
19. The apparatus of claim 18, wherein the first component further comprises a first tapered guiding surface coupled to the distal end of the roll mounting surface and the proximal end of the first introduction element that transitions from a radius less than the radius of the roll mounting surface to a radius substantially equal to the radius of the roll mounting surface such that the tapered roll guiding surface guides a free end of the coreless roll formed in the cavity against the inner circumference of the roll when the apparatus is inserted into the cavity.
20. The apparatus of claim 19, wherein the second component comprises a second roll mounting surface comprising a radius that is substantially equal to the second radius of the roll such that the second roll mounting surface supports the coreless roll when the second roll mounting surface is disposed within the cavity; a second base coupled to the proximal end of the second mounting surface, wherein the second base comprises an outer radius that is greater than the second radius of the coreless roll such that a surface of the second base extending in the direction of the outer radius comes in to flush contact with a surface of the roll extending from the second radius to the first radius with the second mounting surface disposed in the cavity; and
- a friction surface disposed on a surface of the second base extending in the direction of the outer radius opposite the base contact surface, wherein the friction surface is selected from a group consisting of friction bumps, score marks, dimples and combinations thereof.
Type: Application
Filed: Sep 4, 2008
Publication Date: Mar 4, 2010
Inventors: Darren Harvey (Webb City, MO), Ronald E. Coffey (Joplin, MO), Dennis Thielen (Joplin, MO)
Application Number: 12/204,446
International Classification: B65H 75/02 (20060101);