Sheet file mounting/demounting mechanism in an item selection signal input system
AssigneeSharp Kabushiki Kaisha
InventorTakashi Oka
Life of this patent
Estimating the term…
Abstract
An item selection signal input system includes a sheet file carrying a plurality of item lists, each of the item lists being provided with item indicia for marking switches formed on a keyboard panel. The sheet file is removably wound around a bidirectionally rotatable drum through the use of a claw provided on the bidirectionally rotatable drum and an engaging member secured to one end of the sheet file. When different key markings are required, the sheet file is demounted from the bidirectionally rotatable drum, and a new sheet file is mounted on the bidirectionally rotatable drum through the use of the claw and the engaging member.
Claims13
A sheet file mounting mechanism comprising:
- a bidirectionally rotatable drum;
- a sheet file comprising a base sheet and a plurality of item lists secured to said base sheet;
- an engaging member secured to one end of said sheet file;
- and
- a claw disposed at a predetermined position of said bidirectionally rotatable drum so as to catch said engaging member, said claw comprising:
- an engaging surface for catching said engaging member;
- and
- a guide surface for guiding said engaging member to said engaging surface, wherein said engaging member is secured to one end of said base sheet.
An item selection signal input system comprising:
- a housing;
- a keyboard panel secured to said housing, said keyboard panel including a plurality of switches;
- a sheet file comprising a base sheet and a plurality of item lists, each item list being provided with item indicia at positions corresponding to said switches and one end of each of said plurality of item lists being secured to said base sheet;
- a guide space for guiding said sheet file into alignment with said keyboard panel;
- a directionally rotatable drum around which said sheet file is wound;
- an aperture formed at a predetermined position of said housing in order to manually introduce said sheet file into the item selection signal input system for mounting said sheet file around said bidirectionally rotatable drum;
- and
- a rotatable plate disposed near said aperture for selectively communicating said bidirectionally rotatable drum with said guide space and said aperture.
A sheet file mounting mechanism comprising:
- a bidirectionally rotatable drum;
- a sheet file;
- an engaging member secured to one end of said sheet file;
- and
- means disposed at a predetermined position of said bidirectionally rotatable drum for catching said engaging member when said drum is rotated in a first direction for mounting said sheet file, and for releasing said engaging member when said drum is rotated in an opposite direction for demounting said sheet file.
An item selection signal input system comprising:
- a housing;
- a keyboard panel secured to said housing, said keyboard panel including a plurality of switches;
- a sheet file comprising indicia at positions corresponding to said switches;
- guide means for guiding said sheet file into alignment with said keyboard panel;
- a bidirectionally rotatable drum around when said sheet file is wound;
- aperture means formed at a predetermined position of said housing for facilitating mounting and demounting of said sheet file around said bidirectionally rotatable drum;
- and
- a plate disposed near said aperture for selectively communicating said bidirectionally rotatable drum with said guide means and said aperture for selectively facilitating guiding of said sheet file into alignment with said keyboard panel and for mounting and demounting of said sheet file, respectively.
Dependencies are inferred from the claim text.