US 5,267,704 A · Paper roll supporting and holding device with expansible end support member

Abstract

A supporting and holding device in which end supporting members are coupled to both ends of a core of a roll of paper, and are then supported by holding members in the sheet supplying section of an image forming apparatus. Flanges of the end supporting members enable the roll of paper to roll with the aid of the holding member, so as to supply a sheet of paper from the roll of paper. Each end supporting members includes a main member which is inserted into the core of the roll of paper, and an auxiliary member which is inserted into the main member. The main member has a plurality of arm members which are inserted into the core of a roll of paper; and a first flange member integral with the arm members is to be and is to be positioned outside the roll of paper. The first flange includes an axial through-hole extending therethrough. The auxiliary member has a second flange; and a pipe-shaped member which is integral with the second flange. The pipe-shaped member includes a set of first protrusions and is configured to be inserted into the axial through-hole of the main member to push the arm members of the main member against an inner wall of the core when the auxiliary member is rotated through a predetermined angle, thereby securing the end supporting members to both ends of the roll of paper.

Claims9

Dependent claims

An expansible end support member for supporting and holding a roll of paper, the roll of paper including a core having at least one open end, the end support member comprising:

a main member configured to be partially inserted into said open end of the core, said main member including
a plurality of arm members configured to be inserted into said open end of the core, and
a first flange member integral with said plurality of arm members, said first flange member configured to abut the roll of paper when said plurality of arm members are inserted into said open end, said first flange member having an axial through-hole extending therethrough, said plurality of arm members integrally extending from said first flange member and spaced along a periphery of said axial throughhole;
and
an auxiliary member configured to be at lest partially inserted into said main member, said auxiliary member including
a second flange member,
a pipe-shaped member integral with said second flange member, said pipe-shaped member configured to be inserted into said axial through-hole, said pipe-shaped member having a set of first protrusion members provided thereon to push said plurality of arm members against an inner wall of the core when said pipe-shaped member is inserted into said axial through-hole and said auxiliary member is selectively rotated through a predetermined angle, thereby securing the end support member in said open end of the core, and
at least one outer pawl member provided on said pipe-shaped member proximate said second flange.

5 more elements

A supporting and holding device for a roll of sheet material for use in an image forming apparatus, the roll of sheet material including a core having at least one open end, the device comprising:

an end support member configured to be secured to the roll of sheet material, said end support member including
a main member configured to be partially inserted into said open end of the core, said main member having a first flange member with an axial through-hole extending therethrough, and a plurality of arm members integrally extending from said first flange member and spaced along a periphery of said axial through-hole, said plurality of arm members configured to be inserted into said open end of the core with said first flange member abutting the roll of paper, and
an auxiliary member configured to be at least partially inserted into said main member, said auxiliary member having a second flange member, a pipe-shaped member integral with said second flange member and configured to be inserted into said axial through-hole of said main member, wherein said pipe-shaped member has a set of first protrusion members provided thereon to push said plurality of arm members against an inner wall of the core when said pipe-shaped member is inserted into said axial through-hole and said auxiliary member is selectively rotated through a predetermined angle, thereby securing said end support member in said open end of the core, and at least one outer pawl member provided on said pipe-shaped member proximate said second flange;
and
means for holding said end support member to permit selected lengths of sheet material to be drawn from the roll of sheet material.

2 more elements

Dependencies are inferred from the claim text.

Paper roll supporting and holding device with expansible end support member

Life of this patent

Paper roll supporting and holding device with expansible end support member

Life of this patent

Abstract

Claims9