JPH1052990A - Filing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plastic molded-filing tool which prevents the disengagement of filing rings in the center part of a slender and easily deflecting plastic base from occurring. SOLUTION: A plastic loose leaf filing tool consists of a combination of a slender first base 41 with plural upright rings formed at a specified interval along the outer side and a slender second base 43 with plural upright filing rings which ram fit into the plural filing rings on an opposite outer side to the outer side. In this case, the first base 41 and the second base 43 are independently formed as mutually freely openable/closable members. In addition, both first base 41 and second base 43 have a first and a second sliding face which slide over each other and a first and a second locking member 73, 75 which engage with each other for the engagement of the first base 41 with the second base 43. Further, the first and the second base 41, 43 have return stoppers respectively which can be engaged or disengaged with each other, formed at least, at one spot in the center part between both end parts in order to engage the first base 41 with the second base 43 when the bases are closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding device for binding a loose leaf having a plurality of binding holes along one edge, and more particularly to a loose leaf type album, notebook, transparent film storage bag, and the like. The present invention also relates to a binding device for binding other similar items.

[0002]

2. Description of the Related Art There are roughly two types of binding devices in which a loose leaf is closed by opening and closing a binding ring, and a large number of loose leaves are simply held by a suitable binding device having a binding ring. There is a type in which a binding device holding a loose leaf is fixed using eyelets or studs inside the back of a hard cover. As a typical example of the former, as shown in FIG. 1, a coil spring-shaped binding device 1 is sequentially inserted into a large number of binding holes 5 provided at regular intervals along the back of a plurality of loose leaves 3. There is a case where a binding device 9 having a substantially complete annular binding ring 7 partially opened as shown in FIG. 2 is similarly used. In the latter type having a cover, a pair of movable substrates 13 and 15 restrained by an elastic sheath 11 fixed to a cover 21 as shown in FIG. 17 and 19 are provided,
In some cases, the binding rings 17 and 19 are opened and closed by operating the knobs 23 and 25 to move the substrate up and down. Further, the fixed substrate 27 is fixed to the inner surface of the back of the hard cover with the studs 28, the movable substrate 29 is opened and closed with respect to the fixed substrate by the shaft 31, the binding rings 33 and 35 are opened and closed, and the fixed lock member 37, the pivot lock Some types are locked in a closed state by a member 39.

[0003]

In the binding device of the type shown in FIGS. 1 and 2, loose leaf binding is troublesome, time and cost consuming, and loose leaf removal is impossible or difficult. In the case of the type shown in FIGS. 3 and 4, loose binding and replacement of the loose leaf are easy because the binding device is easily opened and closed. However, in the case of FIG. 3, the number of parts is increased, and the size and the cost are increased. In addition, since the knobs 23 and 25 are largely exposed and the sheath 11 is provided, the cross-sectional shape becomes too large, which is not suitable for the usage method as shown in FIGS.
In the example of FIG. 4, a pivot mechanism is provided on the shaft 31 side, and the lock members 37 and 39 are provided on the near side, so that a complicated mechanism is provided. When it is taken, the lock member is exposed and unsightly. Accordingly, an object of the present invention is to provide a binding device having a very simple structure, a good appearance, and easy attachment and detachment of a loose leaf. It is another object of the present invention to provide a structure suitable for a binding device without a cover and a binding device with a cover.

[0004]

Briefly stated, a loose-leaf binding device according to the present invention comprises an elongated first substrate having a plurality of stapling rings arranged at predetermined intervals along an outer side, and an opposite side to the outer side. A loose loose-leaf binding device made of a combination of an elongated second substrate standing up to the plurality of binding rings along the outer periphery of the first binding member, wherein the first substrate and the second substrate are separated from each other. The first substrate and the second substrate are formed as members that can be closed and opened, and the first substrate and the second substrate can be mutually locked to lock the first and second sliding surfaces with each other and to lock both substrates when closed. First and second locking members are respectively provided, and the first and second substrates are mutually engaged and disengaged at least at one portion of an intermediate portion between both ends to lock the two substrates when the substrates are closed. It is characterized in that it has a detent to obtain.
According to another aspect of the invention, the detent for locking the two substrates when closed is a first detent perpendicular to the sliding surface.
A projection protruding from the substrate; and a recess formed in the second substrate to which the projection fits. When the projection and the recess are fitted with each other, when a predetermined force or more is applied in the opening direction. Is configured to be released.

[0005]

According to an embodiment of the present invention, a first sliding surface is formed on a top surface of a first substrate, a second sliding surface is formed on a bottom surface of a second substrate, and A guide protrusion extending in a direction substantially perpendicular to the longitudinal direction and in parallel with the first sliding surface is formed on one substrate as a first guide portion. Is formed with a guide groove which fits and slides with the guide projection as a second guide portion. Thus, during assembly, the two substrates are properly guided by the guide action of the sliding surfaces and the locking member itself, or when the separate guide portions are used, by the two guide portions. Can be properly closed.

The first locking member includes hook-shaped projections projecting from above at both ends of the first substrate, and the second lock includes an elastic plate portion at both ends of the second substrate and the hook-shaped projections at the ends. And a second hook-shaped projection provided to engage with the second hook-shaped projection. If a guide surface is formed on a part of the lock member, when both substrates are closed, they are guided naturally to a proper locking position and locked. Further, the lock can be released against the elasticity of the second lock member. Also, because the lock member is formed using a part of both substrates, it does not take up space,
Can be downsized.

In a preferred example, the first lock member can be constituted by a pair of first hook-shaped projections separated in the opening and closing direction (sliding direction) of the substrate. According to this, two-stage locking is possible. That is, in the first locked position, the binding ring is completely closed, and in the second locked position, the binding ring is open but the two substrates cannot be removed, and the two substrates can be completely removed as necessary. it can.

[0008]

According to the present invention, since a detent is formed in the middle portion of the substrate, which is formed by a concave portion to be fitted with the projection, it is possible to prevent the middle portion from being detached when the plastic substrate is elongated and easily bent. Thus, the present invention provides the advantage of making bindings using substrates that are thinner than conventional plastic bindings of this type. The first and second substrates are formed as separate components, and can be easily assembled by sliding the guide members together with the sliding surface in the respective directions until the locking members interlock. . As a result, the detents in the middle are easily engaged and the corresponding bindings of the two substrates are properly abutted. On the other hand, the lock member can be easily removed by pressing with a finger, and the detent can also be removed by applying a slight opening direction force.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to FIGS. As shown in FIG. 5, the loose-leaf binding device of the present invention includes an elongated first substrate 41 on which a plurality of binding rings 45 are erected at predetermined intervals along an outer side, and an outer side opposite to the outer side. Ring 47 against the plurality of ring rings
And an elongated second substrate 43 standing upright. The binding rings 45 and 47 have a square ring shape as shown in FIG. 5 and have a saw-tooth shape as shown in FIG. 8, and have mutually complementary shapes, or a round ring having a small projection and a small hole at the tip. Any known binding may be used. The binding ring 41 of the first substrate is formed in the thick portion 49 on the outer side. First
And the second substrate is a separate type that can be completely separated,
As will be described later, the loose leaf can be incorporated or disassembled when necessary.

The first substrate 41 has a sliding surface 51 on its upper surface, and its outer edge forms a bottom surface of an undercut portion 53 formed below the thick portion 49. The second substrate 43 has on its lower surface a sliding surface 55 that slides on the sliding surface 51 of the first substrate 41.
Having. On the inner side of the second substrate 43, a thin portion 57 that fits tightly with the undercut portion 53 of the first substrate 41 is formed. And the two substrates are securely fixed. This means is also well known.

In order to facilitate the assembly of the two substrates 41, 43 and to ensure that the binding ring is aligned and abutted, in accordance with a feature of the present invention, it extends in a direction substantially perpendicular to the longitudinal direction of the two substrates and is complementary. A first guide portion 59 and a second guide portion 61 having a shape are formed on both substrates, respectively. The guide portions 59 and 61 can be provided not only at one location but also at a plurality of locations along the longitudinal direction of both substrates depending on the length of both substrates. The first guide portion 59 includes a guide member 63 having a constant width and extending in a direction perpendicular to the longitudinal direction of the first substrate, and a plate-like member 65 that tapers toward a free end.
The second guide portion 61 includes a guide groove 67 that slides by fitting with the guide member 63 of the first guide portion 59 and a plate-like member 65.
And a concave portion 71 that fits in. The peripheral edge of the concave portion 71 has a tapered taper having a shape coinciding with the peripheral edge of the plate-shaped member 65. The guide member 63 and the guide groove 67 may be loosely fitted, and the exact alignment of the two substrates is regulated by the tapered surface when the plate-like member 65 and the recess 71 are completely fitted. Although this example is preferable, a guide portion having another suitable structure may be employed. For example, although the function is slightly inferior, the guide member 6
3 and the guide groove 67 may be omitted, or conversely, the guide member 63 and the guide groove 67 may be tapered to form a plate-like member 65.
And the recess 71 may be omitted.

In accordance with the present invention, the two substrates 41, 43 are locked together when the two substrates 41, 43 are assembled so as to close the binding ring, and unlocked when necessary. A first lock member 73 is provided at each end.
And a second lock member 75 (only one end is shown because both ends have a symmetric structure). The first lock member 73 is formed by a concave portion 77 recessed from the sliding surface of the first substrate and a hook-like protrusion 81 projecting downward toward an undercut portion 79 formed below the thick portion 49. Become. The second lock member 75 includes an elastic plate portion 83 extending from the inner side of the second substrate 43 in the direction of the undercut portion 79 and a hook-like protrusion provided at an end thereof so as to engage with the hook-like protrusion 81. 85. The elastic plate portion 83 is set so as to be elastically deformed without contacting the recess 77. Hook-shaped projections 81, 85
A tapered surface is provided at the tip of the projection so that the projection 85 can be naturally locked by the cam action of the tapered surface when closed. The dimension d from the end of the recess 77 to the side wall 48 of the recess is made smaller from right to left in FIG. 5 so that the side surface 86 of the hook-shaped projection 85 makes accurate contact with the leftmost end of the side wall 48. In this case, the guide function can be obtained by the lock member itself, so that the guide portions 59 and 61 need not be provided. However, when both substrates are long, it is preferable to provide a guide portion at one or more intermediate portions along the longitudinal direction regardless of whether or not the lock member has a guide function. In addition, you may form the saw-like marker 87 which shows the press part at the time of releasing a lock. The structure of this lock member is extremely simple, small, and thin because it uses almost the basic shapes of both substrates.

According to this configuration, the lock members 73, 75
Automatically locks by closing both substrates in the mutual direction. Further, the lock can be released against the elastic plate portion 83 by pressing down the second lock member.
Further, since the lock member is formed by using a part of both substrates, the lock member does not take up much space and can be downsized.

Since the first and second substrates use elongated plastic substrates, a detent projection 84 is formed on one of the substrates and a recess 88 is formed on the other substrate as shown in FIG. To lock both. This allows
In the closed state of the binding ring, it is possible to prevent the binding ring from opening due to the middle portion of the substrate being swung by the loose leaf.

With the above construction, in order to close the binding rings 45 and 47 to each other, the two substrates are substantially aligned and the first substrate 4 is closed.
The sliding surface 55 of the second substrate 43 is placed on the first sliding surface 51, and then the guide member 63 is fitted into the guide groove 67. Since both are loose fits, they fit easily by groping. Both substrates 41,
43 are further pressed in the mutual direction (direction perpendicular to the longitudinal direction of the substrate). By the engagement of the plate-shaped member 65 and the taper of the concave portion 71, the positions of both substrates in the longitudinal direction are accurately regulated, and the thin portion 57 of the second substrate is connected to the undercut portion 5 of the first substrate.
By tightly fitting the two, both substrates are precisely regulated in the vertical direction. Therefore, the binding rings 45 and 47 are accurately aligned and abutted. At the same time, the lock members 73 and 75
It is automatically locked by being guided by the tapered surfaces 1 and 85. In order to release the lock member from the closed state, the user slides in the horizontal direction while pressing the saw-tooth mark 87 of FIG. 5 downward.

In still another modification, the lock member can be configured as a two-stage lock, so that the two substrates can slide to open the binding ring to some extent. FIG. 12 shows a two-stage locking means which can be used in place of the locking members 73 and 75 of FIG. In the figure, a first lock member 101 and a second lock member 103 are provided at both ends (only one end is shown) of the first substrate 41, and the first lock member 101 is opened and closed in the opening and closing direction ( That is, the sliding direction of both substrates)
And a pair of hook-shaped projections 93 and 95 protruding from the lower surface thereof. On the other hand, the second lock member 10
Reference numeral 3 denotes a plate member 96 that constitutes a spring, a hook-like projection 97 provided at the tip thereof, and a finger hook 99 that can be pressed down integrally with the plate member 96. When the projection 97 is engaged with the projection 93, the binding ring is elastically bound. When the projection 97 is engaged with the projection 95, the binding ring is open but the two substrates are not separated. It is in. In operation,
When the finger hook 99 is pushed down and pushed right in FIG. 12 from the state where the binding ring is stapled, and simultaneously the pressing force is loosened, the projection 97 engages with the projection 95. If both substrates are to be completely removed, the finger hook 97 is further pushed right while being pressed down.
In addition, it is also possible to form a mounting hole for the cover in the first substrate as needed. That is, the binding device of the present invention is particularly suitable for use as a binding device without a cover, but is easily diverted with a cover.

[0017]

According to the present invention, since a detent is formed in the middle portion of the substrate, which is formed by a concave portion to be fitted with the projection, it is possible to prevent the binding ring of the middle portion from coming off when the plastic substrate is slender and flexible. The loose leaf in the closed state of the binding ring can also be prevented from being caught between the tips of the binding ring. Therefore,
The present invention provides the advantage of making bindings using substrates that are thinner than conventional plastic bindings of this type. ADVANTAGE OF THE INVENTION The binding device of this invention consists of only two separate parts, is very simple in structure, and can be easily and inexpensively manufactured by injection molding of a plastic resin. Further, the binding ring can be easily bound and locked only by combining the two substrates. Since the lock member is not exposed to the outside and is as if it were a part of the substrate, it is thin, and is therefore suitable for use as a binding device without using a cover.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a conventional binding device without a spine.

FIG. 2 is a perspective view showing another example of a conventional binding device without a spine.

FIG. 3 is a perspective view showing an example of a mold used with a conventional spine.

FIG. 4 is a perspective view showing another example of a mold used with a conventional spine.

FIG. 5 is an enlarged perspective view of a main part of the binding device of the present invention, which is exploded.

FIG. 6 is a sectional view taken along line A-A ′ of FIG. 5;

FIG. 7 is a sectional view of an assembled state corresponding to AA ′ in FIG. 5;

8 is a sectional view taken along the line B-B 'of FIG.

FIG. 9 is a plan view of a guide section of the present invention.

FIG. 10 is an end view of the lock member of the present invention.

11 is a cross-sectional view taken along the line BB 'of FIG. 5, showing a detent mechanism of the present invention.

FIG. 12 is a perspective view showing another example of the lock unit of the present invention.

[Explanation of symbols]

 41 First substrate 43 Second substrate 45, 47 Binding ring 49 Thick part 51 Sliding surface 53 Undercut part 55 Sliding surface 57 Thin part 59 First guide part 61 Second guide part 63 Guide member 65 Plate shape Member 67 guide groove 71 recess 73 first lock member 75 second lock member 77 recess 79 undercut portion 81 hook-shaped protrusion 83 elastic plate portion 84 protrusion 85 hook-shaped protrusion 86 side surface 88 recess 93, 95 hook-shaped Projection 94 Plate member 96 Plate member 97 Hook-shaped projection 101 First lock member 103 Second lock member

Claims (2)

[Claims] 1. An elongated first substrate having a plurality of stitches stood at predetermined intervals along an outer side, and a stapling abutting against the plurality of stitches along an outer side opposite to the outer side. In a plastic loose-leaf binding device in which an elongate elongated second substrate is combined, the first substrate and the second substrate are formed as separate members that can be closed and opened freely, and the first substrate and the second substrate are formed. Has a first and a second sliding surface that slide with respect to each other;
First and second locking members which can be locked to each other to lock both substrates when closed; and furthermore, the first substrate and the second substrate have opposite ends for locking both substrates when closed. Loose-leaf binding device, characterized in that it has detents which can be disengaged from each other at at least one part of the intermediate part between the parts. 2. The detent for locking the two substrates when closed is formed by a projection projecting from the first substrate at right angles to the sliding surface and a projection formed on the second substrate and fitted with the projection. The loose leaf according to claim 1, wherein the loose leaf is configured to be engaged with each other so that when the projection and the concave are fitted with each other, a force greater than a predetermined value is applied in the opening direction. Binding tools.