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Ring binder mechanism with operating lever and travel bar

A technology for ring binders and moving rods, which can be used in file folders, printing, binding, etc., and can solve the problems of increasing the manufacturing cost of the ring binder mechanism and the difficulty in controlling the proper positioning of the hinge plate of the slider.

Inactive Publication Date: 2007-03-28
WORLD WIDE STATIONARY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it can be very difficult to control the proper positioning of the slider relative to the hinge plate
Also, control sliders may have complex shapes in order to interact with hinge plates
This may increase the manufacturing cost of the ring binder mechanism including these control sliders

Method used

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  • Ring binder mechanism with operating lever and travel bar
  • Ring binder mechanism with operating lever and travel bar
  • Ring binder mechanism with operating lever and travel bar

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example 1

[0056] The housing 111 also includes two opposite turned-down flaps 126 (only one of which is visible in FIG. 17 ) extending along respective longitudinal edges of the casing. As in the first embodiment, the opening and closing movement of the ring 113 is supported by the lower bent lip 126 .

[0057] FIG. 17 also shows the ring members 129 a , 129 b forming each ring 113 . The ring members 129a each have a substantially semicircular C-shaped profile, while the ring members 129b each have a square, semi-box-shaped profile, like the first embodiment. The ring members 129a, 129b together form a ring called a D-ring. It is conceivable that the ring members 129a, 129b are formed from existing cylindrical rods of suitable material such as steel. However, ring parts with different cross-sections or made of different materials do not depart from the scope of the invention. Furthermore, mechanisms having more or fewer than three rings or mechanisms that form differently shaped ring...

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PUM

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Abstract

A ring mechanism for retaining loose-leaf pages having a housing, hinge plates, and ring members. The housing supports the hinge plates for pivoting motion relative to the housing to open and close ring members mounted thereon. The mechanism includes a travel bar mounted for translational movement along the longitudinal axis of the housing. An actuating lever is provided secured for pivotal movement to the housing. The actuating lever has a handle portion projecting above the housing for manually pivoting movement of the actuating lever. An actuator portion which extends through an opening in the central top portion of the housing is engageable with the hinge plates to pivot them between the open and closed positions and further is engageable with the travel bar to move it between locked and unlocked positions.

Description

technical field [0001] This invention relates generally to ring binder mechanisms for holding loose-leaf pages, and more particularly to an improved mechanism for opening and closing ring members and for locking closed ring members together. Background technique [0002] Ring binder mechanisms typically hold loose-leaf paper, such as perforated paper, in folders or notebooks. A pair of hinge plates are supported in connected relation within the housing for loose pivotal movement relative to the housing. When the hinge plates are in a coplanar position (180°), the housing is usually narrower than the hinge plates that are attached. Such that when the hinge plates pivot through the co-planar position, they deform the housing and create a spring force that urges the hinge plates to pivot upward or downward. The ring members mounted on the hinge plates move with the pivotal movement of the hinge plates. When the hinge plates are pivoted upward, the ring members are opened, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42F3/04B42F13/22B42F13/36
CPCB42F13/22
Inventor 郑洪如
Owner WORLD WIDE STATIONARY MFG CO LTD