Ring binder mechanism
AssigneeU.S. Ring Binder, L.P.
InventorPaul Whaley
Life of this patent
Estimating the term…
Abstract
An improved ring binder (28) comprises a frame (F′) having a pair of leafs (L1′, L2′) extending lengthwise of the frame. Binder rings (R) are each formed of two binder ring halves (R1, R2) one end (E) of each of which is attached to one of the leafs. Boosters (10) are attached to each end of the frame, and the leafs each include a notch (24, 26) formed at their respective ends. Each booster includes a tang (12) captured in the notch. A cover or shield (40) fits over the frame and extends beyond the location of the boosters. The sides of the cover are now crimped about the boosters to secure them in place.
Claims14
An improved ring binder comprising:
- a frame including a pair of leafs extending lengthwise of the frame;
- at least one binder ring formed of two binder ring halves one end of each of which is attached to one of the leafs;
- a first booster attached to one end of the frame, the leafs each including a notch formed at the same end thereof and the booster including a tang captured with the notch for the booster to be able to move the leafs relative to each other to open and close the binder, and a second booster installed at the other end of the frame, the leafs including another notch formed at the other end of the frame and each end of the cover respectively extending beyond an installed booster and crimped about the booster to secure the booster in place;
- and,
- a cover fitting over the frame and extending beyond the location of the booster when it is attached to the frame, sides of the cover being crimped about the booster to secure the booster in place, and wherein the notches formed by the leafs each include an inner end and an outer end with a passage formed between the notch and an adjacent end of the leafs, the inner end of a respective notch and its associated passage being narrower than the booster tang.
In a ring binder having a frame including a pair of leafs extending lengthwise of the frame and at least one binder ring formed of two binder ring halves one end of each of which is attached to one of the leafs, the improvement comprising;
- a booster attached to one end of the frame, the leafs each including a notch formed at the same end thereof and the booster including a tang captured with the notch for the booster to be able to move the leafs relative to each other to open and close the binder, the notch formed by the leafs including an inner end and an outer end with a passage formed between the notch and an adjacent end of the leafs, the inner end of the notch and the passage being narrower than the booster tang.
Dependencies are inferred from the claim text.