JPH029993Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a loose-leaf binder, and more particularly to a binder configured so that multi-hole office paper and computer paper can be bound in common.

Conventional loose-leaf multi-hole office paper, such as JISA4 size 30 holes and JISB5 size 26 holes, has a perforation pitch of 9.5 mm.

By the way, with the spread of computers in recent years, it has become common for people other than specialized staff to organize and store computer records. For example, 11-inch computer paper sheets have 22 holes with a 1/2-inch (12.7 mm) pitch. Since multi-hole notebook paper is commonly used, it is not possible to bind the notebook into the loose-leaf binder of ordinary office notebooks.
Records were scattered and it was inconvenient to organize and store them.

Therefore, the purpose of this application is to eliminate the above-mentioned inconvenience and provide a binder that can commonly bind any type of paper.The main points of this application are as follows.
In a loose-leaf binder with a large number of binding rods spaced apart in the longitudinal direction, the binding rods can be opened and closed. The feature is that the hole pitch is set to 38 mm, which is approximately equal to the least common multiple of 12.7 mm.

In other words, in the figure, there are two holes in the center of the long mounting base 1.
A large number of divided almost arc-shaped binding rods 2 are provided at intervals,
A known loose-leaf binder in which binding rods 2 are opened left and right by operating operating levers 3 provided at both ends of the mounting base 1, and closed by pressing the opened binding rods 2 from left and right. In this case, the pitch P of the binding rod 2 is the pitch d ₁ of the binding hole 5 punched in the ordinary office paper 4.
9.5mm and binding hole 7 drilled in computer notepad 6
The pitch is approximately 38 mm, which is approximately equal to the least common multiple of the pitch _d2 of 12.7 mm.

In the example, a total of nine binding rods, including eight binding rods 2 with a pitch of 38 mm, the binding rod in its final position, and another binding rod 2' with a pitch of 9.5 mm are attached to the mounting base 1. This shows the case where they are spaced apart in the longitudinal direction.

However, the actual binder A was JISA4 size 3.
When a normal office note 4 with 0 holes is stapled, every third binding hole 5 engages with the binding rod 2, and the final position of the binding hole engages with the binding rod 2', as shown in FIG. death,
Further, when 11-inch 22-hole computer paper notes 6 are stapled into the binder A, as shown in FIG. 4, every second binding hole 7 engages with the binding rod 2 and the sheets are stapled.

Therefore, according to the present invention, with the above-described configuration, multi-hole office paper and computer paper can be commonly bound, which is extremely convenient for organizing and storing recorded documents.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is an overall plan view, FIG. 2 is an end view, and FIGS. 3 and 4 are plan views showing the state of use. In the figure, A is a loose-leaf binder, P is a binding stick pitch, 1 is a mounting base, 2 is a binding stick, 4 is an office note, 5 and 7 are binding holes, and 6 is a computer note.

Claims (1)

[Scope of utility model registration request] In a loose-leaf binder with a large number of binding rods spaced apart in the longitudinal direction, the binding rods can be opened and closed. A loose-leaf binder featuring a hole pitch of 38mm, which is approximately the same as the least common multiple of 12.7mm for notebooks.