JPH02217299A - Ring metal fitting - Google Patents

Abstract

PURPOSE:To prevent the detachment of a document by holding the troughlike folded state of a pair of operation plates even when a shock is applied from the outside by holding the closed state of a pair of binding levers by the engaging means provided between the upper surfaces of the end parts of the operation plates and the upper edge of the neck part of a lever piece. CONSTITUTION:When a pair of binding levers 5, 5 are pressed in a closed direction from an open state by a finger, the inner edge connection parts of operation plates 4, 4 are bent in a trough like folded state to close the binding levers 5, 5 and a lever piece 8 is erected with the bending action of the operation plates 4, 4 so that an engaging protruding part 13b is tilted to the engaging hole position with an engaging hole 13a. Subsequently, when the finger applying part 9 of the lever piece 8 is further strongly pressed inwardly, the engaging protruding part 13b slides along the upper surface of the operation plate 4 to press said plate 4 and the operation plate 4 is slightly bent by elastic force, and the engaging hole 13a and the engaging protruding part 13b are engaged in a pressure contact state to bring the finger applying part 9 to an erected state and the upper edges 10a, 10a of a neck part 10 are also pressed to the upper surfaces of the operation plates 4, 4 under pressure. Therefore, even when the operation plates 4, 4 are ready to bent in a chevron shape by the shock generated, for example, when a document is dropped in a bound state by a mistake, said bending is prevented by the engagement of the engaging hole 13a with the engaging protruding part 13b.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present application relates to a ring fitting for removably binding a perforated sheet by opening and closing a binding rod.

Conventional technology Conventionally, left and right receiving ribs of a sheath plate were provided with receiving ribs bent inward on the left and right side edges along the longitudinal direction of a long plate having a curved cross section in the width direction. , engaging the outer edges of actuating plates consisting of a pair of long elastic plates whose inner edges are joined together so as to be bendable, and a number of pairs of arc-shaped right and left binding rods implanted in each actuating plate, respectively; It protrudes above the shaft plate through notch holes provided on both side edges of the shaft plate, and when the pair of actuating plates bends in a valley-fold shape, it closes the tips of the pair of left and right binding rods, which forms a mountain-fold shape. The shaft plate is configured to open a pair of left and right binding rods when bent, and further includes a shaft plate at both ends thereof.
A lever piece having a lower part bent upward in a U-shape and having a finger rest on the upper part is vertically tiltably supported, and the lower end thereof is an engagement recess provided at the inner edge end of the pair of actuation plates. A ring fitting formed by engaging with is known.

Problems to be Solved by the Invention However, according to the conventional ring metal fitting described above, when a strong impact is applied from the outside, such as by accidentally dropping a file with documents etc. However, there was a risk that the pair of binding rods would open unnecessarily and documents could become loose.

The purpose of this application is to eliminate such deficiencies.

Means for Solving the Problems In order to achieve the above-mentioned object, the present application has a shaft plate having receiving ribs bent inwardly and downwardly on both sides along the longitudinal direction, and the inner edges of the shaft plate are bent downwardly. At the same time, the outer edges of a pair of elongated actuating plates which are bently joined in a valley-fold and a mountain-fold are engaged with each other, and a pair of arc-shaped binding rods implanted in each of the pair of actuating plates are inserted into the sheath plate. The tips of the pair of binding rods protrude above the shaft plate through notched holes provided on both side edges, and can be opened and closed by the bending action of valley folds and mountain folds of the pair of actuating plates, and Engagement recesses are provided at both ends of the inner edge joint by notching the inner edge, and finger rests are provided at both ends of the shaft plate at the top and into the engagement recesses at the bottom. A lever piece connected to a narrow neck and an action part that pushes up the actuating plate from the lower surface and bends into a mountain fold is attached so as to be vertically tiltable, and between the upper edge of the neck and the upper surface of the actuating plate, It is characterized by being provided with a removable locking means that locks the lever piece in the upright state and maintains the activated temporary valley-folded state. Specifically, the locking means is attached to the neck. The locking means consists of locking protrusions provided on the left and right upper edges of the neck and locking holes provided on the upper surface of the actuating plate, or the locking means consists of locking protrusions provided on the left and right upper edges of the neck and a locking hole provided on the upper surface of the actuating plate. A locking recess provided on the top surface, or a locking protrusion provided on the top surface of the actuating plate that the left and right upper edges of the neck forcefully pass over when the locking means raises the lever piece. It is something.

Function: When documents are bound, the pair of actuating plates are bent in a valley-fold shape to close the pair of binding rods, and the lever piece is held in an upright position by the locking means. When the lever piece is strongly pressed outward from this state through the finger rest, the lever piece tilts perpendicularly to the sheath, and this tilting releases the locking state of the locking means. When the finger rest is further pressed outward from this state, the pair of actuating plates are pushed up from the bottom by the acting part, the pair of actuating plates are bent into a mountain fold shape, and the pair of binding rods are opened.
In this state, documents etc. are loaded.

From this state, when closing the pair of binding rods, press the binding rods inward with your fingers, the pair of actuating plates bend in a valley-fold shape, and the pair of binding rods close. At the same time, due to the bending action of the pair of operating plates, the lever piece vertically tilts and stands up to a position where the locking means is not locked.

Next, from this state, when the finger rest of the lever piece is further strongly pressed inward, the upper edge of the neck slides and presses against the upper surface of the actuating plate, and this pressing action causes the actuating plate to release its elastic force. As a result, the locking means is locked in a press-contact state, and the finger rest returns to an upright state.

Therefore, even if an external impact is applied in this state and the pair of actuating plates try to bend in a mountain-fold shape, the locking means prevents the actuating plates from bending in a mountain-fold shape.
The valley-folded state of the pair of actuating plates is maintained.

Embodiments Below, embodiments of the present application will be described in detail based on the drawings (1
) is a long temporary curved in the width direction, with receiving ribs (2), (2) bent inward and downward on the left and right side edges along the longitudinal direction.
A shaft plate with mounting holes (
3) and (3) are drilled respectively.

(4), (4) are located on the lower surface of the shaft plate (1), and engage the outer edges with the receiving ribs (2), (2), respectively, and the inner edges (4) a, (4) a. The actuating plate is made up of a pair of long elastic plates that are joined together so that they can be bent, and the pair of actuating plates (4), (4) has a pair of arcuate rods along the longitudinal direction of the actuating plate. (5) , (5)
The lower ends of the rods (5), (5) are installed in a large number in an upright manner, and the pair of binding rods (5), (5) are provided with horizontally elongated cut holes ( 6), protrudes above the shaft plate (1) via (6), and when the pair of actuating plates (4), (4) are bent in a valley-fold shape, their tips join together, and the pair of actuating plates (4), (4) join together. The plates (4), (4) are opened when bent into a mountain-fold shape. the actuation plate (4);
A pair of actuating plates (4) are attached to the inner edge joints at both ends of (4).
, (4) are each symmetrically cut out to form a rectangular engagement recess (7). As shown in FIG. 5, (8) has a finger rest (9) at the top, is tilted forward at the bottom and then bent backward, and the engagement recess (7) is located at the bent position. ), a narrow neck (10) formed through the left and right upper edges (10)a, which are preferably sloped in a valley shape, and a pair of actuating plates (4);
(4) An action part that pushes up from the bottom surface and bends into a mountain fold (
11) are arranged in series, and the intermediate both sides of the lever part (8) are attached to both ends of the shaft plate (1), and the finger rests (9
) protrudes above the shaft plate (1), and is vertically tiltably supported (12) so that the neck (10) intervenes in the engagement recess (7); Actuation plate (4
), (4) and the left and right upper edges (10)a of the neck (10) are locked in the upright state to lock the pair of actuating plates (4). ), (4) is a locking means for maintaining the valley-folded state, and FIG.
In addition, a locking convex portion (13)b is formed on the upper edge (10)a of the neck portion (10). (14
) extends downward from the mounting hole (3) and passes through the inner edge joint of the pair of actuating plates (4), (4), and has a flange at the lower end for fixing to, for example, a cover. This is the installation pipe.

However, when documents are loaded, the second
As shown by the solid lines in Figure 4, the pair of actuating plates (4) (4) are bent in a valley-fold shape, the pair of binding rods (5), (5) are closed, and the lever part (8) is When the user stands up and the upper edge (10)a of the neck (10) presses the upper surface of the actuation plate (4), the locking convex portion (13)b engages the locking hole (of the actuation plate (4)). 13) a is locked, and when the lever piece (8) is strongly pressed outward from this state via the finger rest (9), the lever piece (8) will come into contact with the shaft plate (1). It tilts vertically using the support part (12) as a fulcrum, and due to this tilting, the locking hole (13)
a, (13)a and locking protrusion (13)b, (13
) b is released, resulting in the state shown by the imaginary line (a) in Figure 4. Then, when the finger rest (9) is further strongly pressed outward from this state, the pair of action parts (11) are released. The actuating plates (4), (4) are pushed up from the bottom surface, and the pair of actuating plates (4), (4) are bent into a mountain-fold shape, and the pair of binding rods are bent as shown by the imaginary lines in Figure 2. (5), (5
) is opened, and the lever part (8) is ff,!
Lodging down as shown in (b).

Therefore, in this state, documents etc. are bound (5), (5)
It is written in.

Also, as shown by the imaginary line in Figure 2, a pair of binding rods (5)
, (5) are open, press the binding rods (5), (5) with your finger in the direction in which they close, as in the conventional case.

Then, the inner edge joints of the pair of actuating plates (4), (4) are bent in a valley-fold shape, and as shown by the solid line in FIG. 2, the pair of binding rods (5), (5) are closed. With the bending action of the pair of actuating plates (4), (4), the lever part (8)
) is the locking convex portion (13
)b vertically tilts to the locking hole position and stands up in the locking hole (13)a.

Next, from this state, when the finger rest (9) of the lever piece (8) is pressed further inward, the locking convex part (13)b slides and presses on the upper surface of the actuating plate (4). Due to this pressing action, the actuating plate (4) is somewhat bent due to its elastic force, and the locking hole (13) a and the locking protrusion (13) b are in pressure contact as shown in FIG. The finger rest (9) returns to the upright position as shown by the solid line in Figure 4, and
Upper edge (10) a of the neck (10).

(10) The actuating plate (4) a is also bent in a valley-fold shape.

(4) Press against the top surface.

Therefore, in the above, even if the pair of actuating plates (4), (4) are bent into a mountain-fold shape due to an impact caused when a document is accidentally dropped with a document attached to the ring fitting, the locking hole ( 13) The actuating plates (4), (4) are prevented from being bent in a mountain-fold shape by the locking between a and the locking convex portions (13) and b.

In the above-mentioned embodiment, as a locking means, a locking hole (13) a is provided on the upper surface of the pair of actuating plates (4), (4).
Also, a case has been described in which locking protrusions (13)b are provided on the left and right upper edges (10)a of the neck (10), respectively, and these are locked in the upright state of the lever piece (8). As shown in FIG. 7, another embodiment is shown in which the locking hole (13)a is provided with a locking recess (13)a' formed in a concave shape.

In addition, Fig. 8 shows that the lever piece (8) is positioned on the top surface of the end of the actuating plate (4), from the upright position shown by the phantom line (a) in Fig. 4 to the state shown by the solid line in the same figure. When doing so, the neck (
This figure shows another embodiment in which locking protrusions (13)c are provided that allow the left and right upper edges (10)a of 10) to overcome with excessive force, and according to this configuration, a pair of binding rods (5) .

When (5) is closed with your fingers, the lever part (8
) is located at a position that does not go beyond the locking protrusion (J3)c, as shown by line g in Figure 8, and when the finger rest (10) is strongly pressed from this state, the left and right upper edges ( 10) As a pushes over the locking protrusion (13) c with excessive force, the left and right upper edges (10) a and the actuating plate (4) stand up in a press-contact state, as shown by the solid line in the figure. .

Therefore, in this state, even if the pair of actuating plates (4), (4) try to bend into a mountain-fold shape due to an external impact,
The left and right upper edges (
10) a pair of actuating plates (4), which are prevented from moving;

The valley fold state (4) is maintained.

Effects of the Invention As described above, according to the present application, the locking means provided between the upper end surface of the actuating plate and the upper edge of the neck of the lever piece,
Since the structure maintains the closed state of the pair of binding rods, there is no risk that the binding rods will open unnecessarily due to external impact force and the document will come off, unlike in the conventional case. Since the locking state of the locking means is maintained by utilizing the locking state, the locking state is reliable and has advantages such as being highly durable.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is an overall plan view with some parts omitted, FIG. 2 is an enlarged sectional view taken along line 1-1 in FIG. 1, and FIG.
Fig. 3 is an enlarged plan view of the end portion with a part cut out, Fig. 4 is an enlarged longitudinal side view of the end part, Fig. 5 is an exploded perspective view of the main part with a part cut out, and Fig. 6 shows the locked state. Fig. 7.8 is a partially enlarged sectional view showing a locked state in another embodiment. In the figure, (1) is the shaft plate, (2) is the receiving rib, (4) is the actuating plate, (4) a is the inner edge, (5) is the binding rod, (6) is the notch hole, (
7) is the engagement recess, (8) is the lever piece, (9) is the finger rest,
(lO) is the neck, (10) a is the upper edge, (11) is the action part, (13) is the locking means, (13) a is the locking hole, (13)
a' is a locking recess, (13)b is a locking protrusion, and (13)c is a locking protrusion. Figure 4 Figure 92 Figure 6 Figure 7

Claims (4)

[Claims] (1) A pair of long lengths whose inner edges are joined to each other so as to be bendable in each fold and mountain fold on both receiving ribs of a sheath plate, each of which has receiving ribs bent inwardly and downwardly on both edges along the longitudinal direction. The outer edges of the long operating plates are engaged with each other, and a pair of arc-shaped binding rods, which are respectively implanted in the pair of operating plates, are inserted into the upper part of the sheath plate through notch holes provided on both side edges of the sheath plate. The tips of the pair of binding rods can be opened and closed by the bending action of each fold and mountain fold of the pair of actuation plates, and the inner edges are notched at both ends of the inner edge joint of the actuation plates. An engagement recess is provided at both ends of the sheath plate, and a finger rest is provided at the upper part, a narrow neck part is inserted into the engagement recess at the lower part, and a mountain is formed by pushing up the actuating plate from the lower surface. A lever piece connected to an action part that bends when folded is attached so as to be vertically tiltable, and the lever piece is locked in an upright state between the upper edge of the neck and the top surface of the actuating plate. A ring metal fitting characterized by being provided with a detachable locking means for holding each folded state. (2) The ring fitting according to claim 1, wherein the locking means comprises locking convex portions provided on the left and right upper edges of the neck and a locking hole provided on the upper surface of the actuating plate. (3) The ring fitting according to claim 1, wherein the locking means comprises locking convex portions provided on the left and right upper edges of the neck and a locking recess provided on the upper surface of the actuating plate. (4) The ring fitting according to claim 1, wherein the locking means is provided with a locking protrusion on the upper surface of the actuating plate that the left and right upper edges of the neck forcefully ride over when the lever piece is erected.