Unlock instant, AI-driven research and patent intelligence for your innovation.

Circular clip

A technology of ring clips and shackles, applied in the field of ring clips, which can solve the problems of low production efficiency, difficult processing, and partial damage of ring clips, etc.

Inactive Publication Date: 2006-01-04
WORLD WIDE STATIONARY MFG CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since it is very difficult to process a centered inward recess at the end of a very thin shackle portion, the production efficiency of the ring binder with such a shackle portion is very low and the unit cost is high
In addition, because the end of the very thin shackle part is hollowed out to form a concave part, the peripheral wall of the end part of the very thin shackle part becomes very thin, and the strength is obviously reduced. Easily damaged, short service life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Circular clip
  • Circular clip
  • Circular clip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] 1-10, the ring binder of the present invention generally indicated by 1 includes a slightly arc-shaped elongated base generally indicated by reference numeral 3, and three longitudinally spaced along the base indicated by 5 respectively. Round carabiner. Both sides of the elongated base 3 are slightly bent downwards so that two elongated movable parts 7 and 9 are mounted on the bottom side of the elongated base 3 . Two movable parts 7 and 9 extend along the slightly downwardly bent inner edges on both sides of the base 3 and are movably hinged to the base 3 so as to rotate about a longitudinal axis parallel to the base 3 so that the movable Sections 7 and 9 move between a raised position relative to the base and a lowered position relative to the base.

[0041] Penetrating grooves 11 are also formed in pairs on both side edges of the base 3 . Each circular shackle 5 includes two semicircular shackle portions 51 and 53 that cooperate with each other. One end of the tw...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The circular clip includes one base part; two movable parts hinged to the base part and capable of being moved between one lifting position and one lowering position; and at least two hooked rings fixed separately to the movable parts. Each hooked ring includes two half rings fixed separately to the two movable parts, and two half rings have raised part and notched part for meshing formed separately in the contact part and thus can be opened and closed with the motion of the movable parts between the lifting position and the lowering position. Of the two half rings, at least one has crossed notched part communicated with outside in the contacting end or one has uneven thickness in the circumference of the free end, so that when the closed hooked ring may be locked in the closed position without accident opening.

Description

technical field [0001] This invention relates to ring binders for holding loose sheets of paper, and more particularly to ring binders including improved shackles. Background technique [0002] Ring binders hold loose sheets of paper, such as perforated paper, into a document or notebook. The shackle for holding paper consists of two shackle sections that can be selectively opened to add or remove paper, or closed to hold paper while allowing them to move along the shackle. Control handles are typically provided at both ends of the ring binder for moving the shackle between open and closed positions. Of course, the two ends of the ring clamp may not be provided with control handles, and the shackle can be directly moved between the open position and the closed position by hand. [0003] A drawback of prior art ring binders is that when the ring binder's shackles are closed, the shackles do not lock in the closed position, allowing the shackles to become partially misaligne...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B42F3/04B42F13/22B42F13/26
Inventor 杜振源郑可平
Owner WORLD WIDE STATIONARY MFG CO LTD