Device for holding a roll of material
A device for holding a roll of material surrounding a core includes a mount with two arms, each having a retractable catch. The retractable catch includes a contoured end, optionally substantially hemispheric, that transmits a radial force on the core to cause the catch to retract. In an optional embodiment, the catch is part of a catch assembly including a spring biasing the catch perpendicular to the arms and toward the core and an annular retainer that holds the catch to the arms.
The present application is a continuation-in-part of U.S. patent application Ser. No. 11/005,426, entitled “Bathroom Tissue Holder,” filed Dec. 7, 2004 by Applicant herein.
FIELD OF THE INVENTIONThe present application is directed to a device for holding a roll of material surrounding a core. More specifically, the present application is directed to a device for holding a roll of material in which the arms and catches of the device are spaced and shaped to permit removal of the core from the device with radial force applied to the core.
BACKGROUND OF THE INVENTIONMost toilet tissue holders are comprised of a fixed housing having two rigid arms and a compressible cross-bar engaged between the rigid arms of the housing. To mount or dismount a roll of material on the holder, the user is required to use both hands to simultaneously compress the cross-bar and pull the cross-bar away from the arms. As may be appreciated, the physical ability, e.g. the strength and coordination, required to perform this task may be outside the abilities of some people, such as the elderly, the young, the disabled, or the like.
Additionally, the cross-bar in may of the prior art tissue holders acts as an axle around which the tissue roll can spin freely. This can lead to waste of toilet tissue if a pet or child purposely or accidentally unravels the roll of tissue.
SUMMARY OF THE INVENTIONA device for holding a roll of material surrounding a substantially cylindrical core includes a mount having two spaced arms and a retractable catch on each arm. The catch includes a substantially contoured end receiving the core. Optionally, the contoured end is substantially hemispheric. The arms are spaced such that force on the core in a direction radial to the core is transferred to the contoured end to force the catches to retract in a direction substantially perpendicular to the arms.
In an optional embodiment, the catch is part of a catch assembly that includes a catch, an annular retainer holding each catch to a respective arm, and a spring biasing each catch in a direction perpendicular to the respect arm and toward the core. Optionally, the retainer includes an opening through which only the hemispheric end protrudes. In a further optional embodiment, the annular retainer engages the arms through mating threads. Optionally, the arms are spaced such that the annular retainers are separated by a distance greater than or equal to the length of the core.
BRIEF DESCRIPTION OF THE DRAWINGS
Reference is now made to the figures wherein like parts are referred to by like numerals throughout. Referring generally to
With reference to
Continuing with
For example, in the optional embodiment illustrated in the figures, the contoured end 62 is substantially hemisphere-shaped. It is noted that in an optional embodiment having a “substantially hemisphere-shaped” contoured end 62, it is contemplated that the contoured end 62 may form more or less than an exact hemisphere, with the amount protruding for engagement to the core 92 forming half a sphere, i.e. only the hemispheric end protrudes, or less than half a sphere. It should be noted that an exact sphere is not necessarily required and the contoured end 62 of the catch could form any other geometric shape, such as an ellipsoid, paraboloid, or the like.
In an optional embodiment the retractable catch 60 is part of a catch assembly. In an optional embodiment, such as that shown in
Continuing with the optional embodiment illustrated in
Referring to
Referring to
To remove the core 92 from the device 100, the process is reversed. That is, a radial force on the core 90 causes the walls of the core 90 to contact the contoured ends 62 of the catches 60. The radial force is transmitted to the catches 60 to thereby compress the springs 80 and retract the catches 60 perpendicular to the arms 22. When the core 90 is free of the catches 60, the catches 60 are released and the springs 80 bias the catches 60 perpendicular away from the arms 22.
While certain embodiments of the present invention have been shown and described it is to be understood that the present invention is subject to many modifications and changes without departing from the spirit and scope of the invention presented herein.
Claims
1. A device for holding a roll of material surrounding a substantially cylindrical core comprising:
- a mount having two spaced arms; and
- a retractable catch on each arm, said catch including a substantially contoured end receiving said core, said arms spaced such that force on said core in a direction radial to said core is transferred to said contoured end to force said catches to retract in a direction substantially perpendicular to said arms.
2. The device of claim 1 further comprising an annular retainer securing said catch to a respective arm, said annular retainer including an opening through which only said hemispheric end protrudes.
3. The device of claim 2 wherein said annular retainer engages said arms through mating threads.
4. The device of claim 1 further comprising a spring biasing said retractable catches in a direction perpendicular to said arms toward said core.
5. A device for holding a roll of material surrounding a substantially cylindrical core comprising:
- a mount having two spaced arms; and
- a catch assembly on each arm comprising: a catch on each arm, said catch including a substantially hemispheric end receiving said core; an annular retainer holding each catch to a respective arm, said annular retainer including an opening through which only said hemispheric end protrudes; and a spring biasing each catch in a direction perpendicular to a respective arm and toward said core, said arms spaced such that force on said core in a direction substantially radial to said core is transferred to said hemispheric end to force said catches to retract in a direction substantially perpendicular to said arms and away from said core.
6. The device of claim 5 wherein said annular retainer engages said arms through mating threads.
7. A device for holding a roll of material surrounding a core in the form of a right cylinder having a central passage, comprising:
- a mount having two spaced arms; and
- a catch assembly on each arm comprising: a catch on each arm, said catch including a substantially hemispheric end receiving said core; an annular retainer holding each catch to a respective arm through mating threads, said annular retainer including an opening through which only said hemispheric end protrudes; and a spring biasing each catch in a direction perpendicular to a respective arm and toward said core, said arms spaced such that said annular retainers are separated by a distance greater than or equal to the length of said core and said contoured ends of said catches are separated by a distance less than the length of said core such that force on said core in a direction substantially radial to said core is transferred to said hemispheric end to force said catches to retract in a direction substantially perpendicular to said arms and away from said core.
Type: Application
Filed: Feb 2, 2007
Publication Date: Jun 14, 2007
Inventor: Sun Ko (Henderson, NV)
Application Number: 11/701,588
International Classification: B65H 16/06 (20060101);