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Title:
RING BINDER HAVING LEVERS PROVIDED WITH BUFFER MEMBERS
Document Type and Number:
Japanese Patent JP2001293989
Kind Code:
A
Abstract:

To provide a ring binder used smoothly and equipped with levers which are resistive to slippage and minimize the undesirable feedback of forces caused by the snap action of rings when the rings are opened and closed.

The ring binder comprises a curved upper plate holding one set of rotatable hinge leaves fitted with a number of semi ring bodies and has the two rotatable levers for moving the hinge leaves between a first position where the semi ring bodies close and a second position where they open. Each lever is provided with an aperture and the buffer member engaging with the lever, and the buffer member is so constituted that a part of a first member extends through the aperture of the lever and engages with a part of a second member.


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Inventors:
TO CHUN YUEN
Application Number:
JP2001000082390
Publication Date:
October 23, 2001
Filing Date:
March 22, 2001
Export Citation:
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Assignee:
WORLD WIDE STATIONERY MFG CO
International Classes:
B42F13/22; B42B5/08; B42F3/04; B42F13/00; B42F13/16; B42F13/26; (IPC1-7): B42F13/22
Attorney, Agent or Firm:
鈴江 武彦 (外4名)



 
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