Ring binder
AssigneeU.S. Ring Binder, L.P.
InventorSteven Gillum
Life of this patent
Estimating the term…
Abstract
A shield for a ring metal is provided having arcuate band sections at the locations of the rings and intermediate sections therebetween, the intermediate sections having a straight segmental cross section having a lower overhead clearance between the shield and the hinged leaves than the band sections. The hinged leaves abut the intermediate section before tab members formed on said hinged leaves can abut an underside of the band sections, thus upward dents are prevented on the shield. Additionally, the straight segmental configuration of the intermediate sections provides increased resiliency for opening and holding closed the rings of the ring metal.
Claims19
A shield for a ring metal for a ring binder, the ring metal having hinged leaves covered by and resiliently clasped by said shield, said hinged leaves attached to openable sections of a ring for holding paper thereon, the shield comprising:
- a first arcuate section located at the axial location of said ring;
- and
- a first segmental section and a second segmental section having polygonal cross sections taken through a width of the shield and arranged connected to said first arcuate section on opposite longitudinal side of said arcuate section;
- wherein said hinged leaves comprise tabs located under said first arcuate cross section, said first arcuate cross section and one of said polygonal cross sections adapted for said hinged leaves to abut said one polygonal cross section leaving a clearance remaining between said tabs and said first arcuate cross section.
A ring carrier for a ring binder comprising:
- a plurality of pivotably openable rings;
- a first leaf and a second leaf hingedly abutted together along one common lateral edge;
- a resilient cover resiliently surrounding said first leaf and said second leaf;
- each of said rings having two base ends, each base end connected to one of said leaves such that a pivoting upward of said leaves toward said cover in an upward V formation opens said rings, and a pivoting downward of said hinged leaves results in a closing of said rings;
- and
- said cover comprises band sections at each of said rings along an axis of said cover, and intermediate sections between said band sections along an axis of said cover, said band sections having a taller height from said hinged leaves than said intermediate sections, said intermediate sections comprising a segmental cross section having planar side segments.
A ring carrier for a ring binder comprising:
- a plurality of pivotably openable rings;
- a first leaf and a second leaf hingedly abutted together along one common lateral edge;
- a resilient cover resiliently surrounding said first leaf and said second leaf;
- each of said rings having two base ends, each base end connected to one of said leaves such that a pivoting upward of said leaves toward said cover in an upward V formation opens said rings, and a pivoting downward of said hinged leaves results in a closing of said rings;
- and
- said cover comprises band sections at each of said rings along an axis of said cover, and intermediate sections between said band sections along an axis of said cover, said band sections and said intermediate sections having divergent cross sectional shapes, said band section immediately transitioning into said intermediate sections creating a stiffening rib across a width of said cover.
Dependencies are inferred from the claim text.