JP2005090731A - Self-opening/closing retaining mechanism for double- folded body or broken body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-opening/closing retaining mechanism for a double-folded body or a broken body. <P>SOLUTION: In this self-opening/closing retaining mechanism for the double-folded body or the broken body, at least one sheet of steel band 4 with a specified length formed in an arc shape in cross section is fixed in a state of being stretched across the half bodies 1 and 2 of the double-folded body or the broken body so as to be positioned parallel with the direction of double folding and so that the projected part of the steel band is positioned on the inner side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a novel two-fold body or a half-fold body self-opening / closing maintenance mechanism. In this specification, the self-opening / closing maintenance mechanism refers to a mechanism that urges and holds the half-folded body or the half-folded body in a state of being overlapped and closed or vice versa.

  Conventionally, various self-opening / closing maintenance mechanisms for bi-folded bodies or folded bodies have been provided, and there are many kinds of bi-folded bodies or folded bodies, so that the self-power corresponding to each form can be used. Opening and closing maintenance mechanisms have been provided. However, the conventional self-opening / closing maintenance mechanism has a complicated or large structure, and can be used conveniently and suitably for small daily necessities such as notebooks, small binders, double wallets, business card holders, etc. Has never been offered. Therefore, with conventional binders, etc., a stop band is often attached to prevent the cover from being opened easily except when it is actively opened, but such a stop band is only an obstacle. It also greatly affects the manufacturing cost.

Problems to be solved by the invention

  An object of the present invention is to provide a self-opening / closing maintenance mechanism that can be suitably applied particularly to small-sized two-fold (or middle-folded) daily necessities and personal items.

Means for solving the problem

In order to solve the above-mentioned problems, the present invention provides a self-closing mechanism for self-folding or folding a half-folded body or a half-folded body. The steel strip was fixed in a state of being stretched over each half of the steel plate so that it was parallel to the folding direction and the mountain side of the steel strip was inside.
There is no particular limitation on the number of steel strips. Depending on the object to be applied, one to a plurality can be freely selected. The opening / closing force may be a suitable opening / closing force by a combination of the opening / closing force of one steel strip and the number thereof. A plurality of steel strips may be used in a stacked manner.
The material of the steel strip may be steel or stainless steel.
The steel strip may be directly fixed to the half-folded body or the half-folded body, or may be fixed via another hard member when the half-folded body or the middle-folded body is soft. Also, the fixing means may not be specially used as long as the steel strip is not displaced.

Action

  The self-folding maintenance mechanism of the bi-folded body or the folded body according to the present invention is such that the half bodies of the bi-folded body or the folded body are always closed by the self-rolling function of the steel strip of a certain length formed in a circular arc section. When the steel strip is opened until it is almost 180 °, that is, almost straight, against the rolling force of the steel strip, the steel strip loses its crimping force and the steel strip itself The open state is maintained by the straightening force.

The invention's effect

  The self-folding and maintaining mechanism of the bi-folded body or the folded body according to the present invention is structurally very simple because it only fixes the steel strip to the folded body or the folded body by an appropriate method. It can be particularly suitably applied to daily necessities, personal items, etc., and has a function of maintaining its own opening and closing.

  An embodiment of the automatic crimping band of the present invention will be described with reference to the drawings.

1 and 2 show a first embodiment of the present invention and show an example applied to a stationery binder. 1 is a front cover of the binder, 2 is a back cover, 3 is a back cover, and 4 is a steel strip.
The front cover 1, the back cover 2, and the back cover 3 are both laminated with two thick cardboards 5 and sandwiched between the outer sides with a soft vinyl chloride sheet 6 and 4 laps, the front cover 1, the back cover 3, the back cover 2, and the back cover 2. A gap between the cover sheets 3 is thermocompression bonded, and a binder metal fitting is attached to the inside of the spine cover 3. The steel strip 4 has a length of about 3/4 of the width when the binder is opened parallel to the opening and closing directions of the front cover 1 and the back cover 2 (special metal industry, SUS-301EH, made of stainless steel, 13 mm width) (see FIG. 3) is sandwiched between the front cover 1, the back cover 2 and the back cover 3 so that the crest side of the steel strip is on the inside. Therefore, the soft vinyl chloride sheet is not thermocompression-bonded at 7 points. For this reason, the non-thermocompression-bonded portion has a function of positioning the steel strip 4, and the steel strip 4 cannot move in the vertical direction in the figure. No fixed means is used between the binder cover and the binder cover.
The binder of this embodiment is not free to open and close the cover like a conventional general binder, and the state can be forcibly maintained by itself even when the cover is closed or the cover is opened.

FIG. 4 shows an embodiment applied to a leather bi-fold wallet. In this embodiment, since the leather is a soft and low-wasted material, both ends of the two steel strips 4 are fixed to separate hard plate members 8, and a rectangular frame shape is incorporated.
In the above embodiments, each is an example of a double-folded body or a single-folded body, but the self-opening / closing maintenance mechanism of the present invention has a structure in which a double-folded body or a folded body is continuous as shown in FIG. Needless to say, the present invention can also be applied to four-folds. In this case, a continuous steel strip may be used, or a steel strip separated only at the folded portion may be used.

It is a top view of the binder to which the self-operating opening and closing maintenance mechanism of the present invention is applied. It is the II-II line expanded sectional view of FIG. It is a perspective view of the steel strip used for the self-operating opening and closing maintenance mechanism of the present invention. It is a schematic plan view of a wallet to which the self-opening / closing maintenance mechanism of the present invention is applied. It is a perspective view at the time of applying the self-closing opening / closing maintenance mechanism of this invention to a trifold body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Binder front cover 2 Binder back cover 3 Binder spine 4 Steel strip 5 Cardboard 6 Soft vinyl chloride sheet 7 Non-thermal pressure bonding point 8 Hard board

Claims (1)

  In a state where at least one steel strip of a certain length formed in an arc shape in cross section is passed to each half of the half-folded body or the half-folded body, the crest side of the steel strip is parallel to the half-fold direction A self-opening / closing maintaining mechanism for a double-folded body or a half-folded body characterized by being fixed so as to be.

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