TW201628871A - Loose leaf binding implement - Google Patents

Abstract

In the present invention, at each location where two base sheets 2a, 2b approach each other, provided is a sliding release mechanism 6 that causes rotational displacement of the base sheets 2a, 2b in conjunction with relative displacement of the base sheets 2a, 2b along the extension direction thereof, such rotational displacement causing the base sheets to come into contact with each other in a sliding manner and thereby causing ends 4a, 4b of a pair of half-ring portions 3a, 3b to separate from each other.

Description

Loose-leaf binding

The present invention relates to a half-ring portion formed in a plurality of pairs formed on each substrate by a relative rotational displacement of two substrates parallel to each other, and is adjacent to each other at the front end portions thereof to form a ring shape. A loose-leaf binding device that moves between a locked position and an open position in which the respective front end portions are separated from each other, in particular, proposes a technique capable of improving the operability of the user with the loose-leaf binding device.

In the Japanese Patent Application No. 2014-080587, the present invention has been proposed in which the shaft of the two substrates is rotationally displaced and integrated with the substrate.

More specifically, as shown in FIGS. 18(a) and (b), the binder assembly 101 includes two substrates 102a and 102b disposed adjacent to each other in a direction parallel to each other, and the substrates 102a and 102b are respectively disposed on the substrates 102a and 102b. The plurality of pairs of half-ring portions 103a and 103b are formed integrally with at least one of the back surfaces B of the substrates 102a and 102b, and the shafts 104 are fixed at one or more ends extending parallel to the substrates 102a and 102b; At least one of the shaft holding portions 105 is formed integrally at least on the back surface B of the other substrates 102b, 102a and around the both ends of the fixed shaft 104.

According to the loose-leaf binder 101, the two substrates 102a and 102b can be rotationally displaced around the both end fixing shafts 104 held by the shaft gripping portion 105.

With this configuration, it is possible to reduce the number of components without using a conventional shaft member made of metal as a shaft, and it is possible to greatly improve the assembly work efficiency at the time of manufacture, and Manufacturing costs are suppressed to a lesser extent.

When the illustrated binder assembly 101 is used, the user resists the coil springs disposed on the back side B side of the substrates 102a, 102b by gripping the grip portions 107a, 107b provided at the ends of the respective substrates 102a, 102b. In a manner of elastic force of 108, the two substrates 102a, 102b are relatively displaced relative to each other in the extending direction thereof, and the locking of the plate locking means 109 is released.

In this state, the half ring portions 103a and 103b can be moved to the open position by rotating the substrates 102a and 102b in the direction in which the half ring portions 103a and 103b are opened.

However, in the above-described loose-leaf binder 101, the half-ring portions 103a, 103b are not opened only by the operation of relatively displacing the substrates 102a, 102b in the extending direction, and therefore, the user must further perform the substrates 102a, 102b. After the relative displacement operation, the substrates 102a and 102b are rotated and displaced toward the open positions of the half ring portions 103a and 103b. Therefore, there is still room for improvement from the viewpoint of the operability of the loose-leaf binder 101.

In view of this, the torsion coil spring 111 described below as shown in Fig. 19 can be used as the coil spring 108 described above, and the so-called torsion coil spring 111 can be used to wind up the spiral body portion 112. The roll terminals are extended outward in the radial direction from the outer circumference of the spiral, and are provided with the leg portions 110.

In the case where the torsion coil spring 111 is used, the two leg portions 110 are biased to rotate the substrates 102a, 102b which are rotated in the opening direction of the half ring portions 103a, 103b, thereby extending the substrates 102a, 102b. After the lock of the plate lock means 109 due to the relative displacement is released, the substrates 102a and 102b are rotationally displaced by the elastic pressure of the leg portion 110, so that the half ring portions 103a and 103b are automatically moved to the open position. Thereby, in this case, the user does not need the substrate 102a, 102b Perform a rotational displacement operation.

However, when such a torsion coil spring 111 is used, when the loose-leaf binder 101 is manufactured, when the two-piece substrates 102a and 102b are assembled, it is necessary to perform the torsion coil spring 111 against the elastic pressure and to accommodate the leg portion 110 in the predetermined position. In the aspect of the operation of the positional arrangement, there is a problem that the manufacturing efficiency in the case of mass production is greatly reduced.

The present invention has been made in an effort to solve the above-mentioned problems of the loose-leaf binding device, and an object thereof is to provide a loose-leaf binding device capable of assisting a user in performing relative substrate without reducing the manufacturing efficiency of the binder. The substrate is rotated and displaced after the displacement operation, and thereby the operability of the loose-leaf binder is improved.

The loose-leaf binder of the present invention comprises: two substrates arranged adjacent to each other in a direction parallel to each other; and a plurality of pairs of half-ring portions formed on each of the substrates and extending on a surface side of the substrate Forming a ring shape in common with each other; by means of the rotational displacement of each substrate, the plurality of pairs of half ring portions are adjacent to each other at the respective front ends of the pair of the half ring portions to form a ring-shaped blocking position, and Moving between the open positions at which the respective front ends of the half ring portions are separated from each other; on the back surface of at least one of the substrates, two or more axes which are swelled from the back surface and are disposed apart from each other in the extending direction of the substrate are integrally provided a connecting portion and a shaft extending in parallel with the substrate between the two or more shaft connecting portions and spaced apart from the back surface, and each end portion is fixed to one or more ends of each of the shaft connecting portions; and a position of the other side of the substrate adjacent to the fixed axis of the one of the substrates, and a part of the circumferential direction of the fixed axis of the both ends is integrally provided, One or more shaft gripping portions around the two ends of the fixed shaft; the two substrates are rotatably displaceable around the fixed shafts of the two ends held by the shaft gripping portion; , setting a sliding open mechanism, the The sliding opening mechanism is slid in contact with each other with relative displacement in the extending direction of the substrate, thereby generating a rotational displacement of the substrate which separates the front ends of the paired half ring portions from each other.

In the loose-leaf binder of the invention, it is preferable that each of the two adjacent portions of the two substrates is disposed in a front view to be inclined with respect to an extending direction of the substrate, and accompanying the extending direction of the substrate. The at least one pair of guiding inclined surfaces that are in contact with each other in sliding contact with each other, and the sliding inclined surface constitutes the sliding opening mechanism.

Here, it is preferable that a projection protruding from the adjacent surface and a projection receiving groove recessed from the adjacent surface continuously from the projection are provided on each of the adjacent surfaces of the two substrates. The guide inclined surface is disposed from the protruding portion to the protrusion receiving groove portion.

Further, it is preferable that an elastic member that biases the two substrates toward each other in a direction opposite to the relative displacement in the extending direction of the substrate is disposed on the back side of the substrate.

Here, the term "an elastic member that biases the two substrates toward each other only in a direction resisting the relative displacement in the extending direction of the substrate" means that the direction other than the direction against the relative displacement in the extending direction of the substrate is not included. And a torsion coil spring with a foot that is biased in the direction in which the half ring portion is opened.

Further, it is preferable that an end surface of the shaft holding portion or the shaft coupling portion is provided with an engagement concave portion recessed from the end surface, and an end surface of the shaft holding portion or the shaft coupling portion adjacent to the end surface And an engaging convex portion is fitted in the locking concave portion at a locking position of the half ring portion, and is detached from the engaging concave portion with a relative displacement in a direction in which the substrate extends.

In the case where the above-described engagement convex portion and the engagement concave portion are provided, the shaft holding portion is formed in a tubular shape, and the side wall of the cylindrical shaft holding portion is provided over the entire length of the axial direction of the shaft holding portion. The slit may be set as the engaging recess in which the engaging convex portion is fitted.

Further, in this case, it is preferable that an end surface of the shaft holding portion or the shaft coupling portion provided with the engaging recess portion is provided from the engaging recess portion by relative displacement in a direction in which the extending direction of the substrate The stop surface of the engaging convex portion that abuts the open position of the half ring portion.

Furthermore, it is preferable that an end surface of the shaft holding portion or the shaft coupling portion provided with the engaging recess portion is provided with a convex portion sliding region from the end surface, the convex portion sliding region being provided by When the relative displacement of the extending direction of the substrate is displaced from the engaging concave portion, the engaging convex portion abuts and slides when the substrate is displaced by the rotation, and the convex portion sliding region causes the engagement with the rotational displacement of the substrate The frictional resistance between the convex portion and the end surface is increased.

In addition, it is preferable that two sets of engaging convex portions and engaging concave portions are provided on the end faces of the shaft holding portions or the shaft connecting portions adjacent to each other so that the engaging convex portions are in the half The open positions of the ring portions abut each other.

According to the loose-leaf binding device of the present invention, the adjacent portions of the two substrates are respectively provided in contact with each other with relative displacement along the extending direction of the substrate to produce a substrate which separates the front ends of the paired half-ring portions from each other. The sliding opening mechanism for the rotational displacement, whereby the user rotates the substrate in the direction in which the half ring portion is opened by performing the operation of relatively displacing the substrate in the extending direction, thereby enabling the operability of the loose-leaf binding device improve.

1‧‧‧ Loose-leaf binding

2a, 2b‧‧‧ substrate

3a, 3b‧‧‧ half-ring section

4a, 4b‧‧‧ front end

5a, 5b‧‧‧ grasping part

6‧‧‧Sliding open institutions

7a, 7b‧‧‧ board components

8‧‧‧Protruding

9‧‧‧Protruding receiving groove

10‧‧‧Guided inclined surface

11‧‧‧Axis joint

12‧‧‧ fixed shafts at both ends

13‧‧‧Axis Control Department

13a‧‧‧Slit (engaged recess)

13b‧‧‧ Containment space

14‧‧‧Clamping recess

15‧‧‧Clamping convex

15a‧‧‧Extension of the convex part

16‧‧‧ convex sliding area

16a‧‧‧Sliding surface

16b‧‧‧ stop surface

17‧‧‧Cone-shaped spring receiving part

18‧‧‧Support wall

Lc‧‧‧ with the means of opening up the maintenance agency

Lo‧‧‧With the means of opening the restriction mechanism

RM‧‧‧elastic components

θ‧‧‧Open angle

F‧‧‧ surface

B‧‧‧Back

S1‧‧‧ outside

S2‧‧‧ inside side (adjacent side)

Fig. 1 is a front elevational view showing a loose-leaf binder of an embodiment of the present invention.

Fig. 2 is a front view and a side view showing a plate member constituting the loose-leaf binder of Fig. 1.

Fig. 3 is a partially enlarged perspective view showing the slide opening mechanism provided in the loose-leaf binder of Fig. 1.

4 is a front elevational view showing states of the operation of the loose-leaf binder of FIG. 1 in relation to the relative displacement of the substrate.

Figure 5 is a front elevational view of the resilient member of the loose-leaf binder of Figure 1.

Figure 6 is a perspective view of the loose-leaf binder of Figure 1.

Figure 7 is a side elevational view of the loose-leaf binder of Figure 1.

Figure 8, is a rear view of the panel member of Figure 2 and a partial enlarged view thereof.

Figure 9 is a partially enlarged side elevational view of the loose-leaf binder of Figure 1.

Fig. 10 is a partially enlarged perspective view showing a plate member of a convex portion sliding region of the loose-leaf binder of Fig. 1.

Fig. 11 is a partially enlarged perspective view showing the loose-leaf binder of each position of the sliding portion of the projection of Fig. 10 at the time of the rotational displacement of the substrate.

Figure 12 is a cross-sectional view taken along the line XII-XII of Figure 1 of the loose-leaf binder of Figure 1 in a state in which the half-ring portion has been opened to the open position.

Figure 13 is a side elevational view showing the loose-leaf binder of Figure 1 in a state in which the half-ring portion has been opened.

Fig. 14 is a partially enlarged perspective view showing the plate members of the locking means attached to the opening maintaining mechanism provided in the loose-leaf binder of Fig. 1.

Fig. 15 is a partially enlarged perspective view showing the plate members of the locking means with the opening restriction mechanism provided in the loose-leaf binder of Fig. 1.

Figure 16 is a cross-sectional view taken along line XVI-XVI of Figure 13.

Fig. 17 is a partially enlarged perspective view showing a state in which the elastic member of the loose-leaf binder of Fig. 1 is taken out in a state in which the elastic member has been taken out.

Figure 18 is a front view and a side view showing a conventional loose-leaf binder.

Fig. 19 is a front view and a plan view of a torsion coil spring which can be used for the loose-leaf binder of Fig. 18.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

The loose-leaf binder 1 illustrated in FIG. 1 includes a substrate 2a having a substantially rectangular cross section extending in one direction, and a substrate 2b disposed adjacent to one of the substrates 2a and formed on the substrate 2b. a plurality of pairs (eight pairs in the figure) of the half-ring portion 3a extending from the outer surface S1 and the surface F side of the substrates 2a and 2b from the outer surface S1 to the surface F side of the substrates 2a and 2b. , 3b.

Further, it is preferable that the substrates 2a and 2b and the half ring portions 3a and 3b are made of a resin material.

Here, the configuration of the half-ring portions 3a and 3b which are inserted into the plurality of through-holes of the sheet of paper or the like (not shown) for locking the paper to function, can be formed by The substrates 2a and 2b of the half ring portions 3a and 3b are axially rotatably displaced around the opposite ends of the back surface B side, and the front end portions 4a and 4b are close to each other and are as shown in Fig. 1. The latching position, which is formed in a ring shape, is moved between an open position in which the front end portions 4a, 4b are separated from each other.

Thereby, the paper can be attached and detached at the open positions of the half ring portions 3a and 3b, and the paper can be loaded and held at the closed position of the half ring portions 3a and 3b.

When the user operates the above-described loose-leaf binder 1, the user firstly locks the locking means for restraining the half-ring portions 3a, 3b in the locked position as described below, and is held at the end of each of the substrates 2a, 2b. In the state of the gripping portions 5a, 5b, one of the substrates 2a and The other substrate 2b is relatively displaced in the extending direction thereof (left-right direction in Fig. 1).

Further, after that, for example, it is necessary to perform an operation of moving the half ring portion to the open position and rotating the substrate by shifting the half ring portion as in the holding of the grip portion while holding the grip portion. However, in the present invention, in order to assist the above-described substrate rotation displacement operation, a slide opening mechanism 6 is provided in each of adjacent portions of the substrates 2a and 2b, and the slide opening mechanism 6 is accompanied along the substrate 2a. The relative displacement of the extending directions of 2b is in contact with each other, thereby generating a rotational displacement of the substrates 2a, 2b which separate the front end portions 4a, 4b of the paired half ring portions 3a, 3b from each other.

When the slide opening mechanism 6 is described in detail, in this embodiment, as shown in Fig. 2, one of the two plate members 7a, 7b of the loose-leaf binder 1 is formed as shown in Fig. 2, and further, as in Fig. 3 In the same manner as the slide opening mechanism 6, the projections 8 projecting from the inner side surface S2 and the projections 8 are continuously recessed from the inner side surface S2 on the inner side surface S2 adjacent to the two substrates 2a and 2b. The projection receiving groove portion 9 is formed so that the projections 8 and the projection receiving groove portions 9 are formed at a desired angle with respect to the extending direction of the substrates 2a and 2b when the front-viewing substrates 2a and 2b are formed. The inclined surface 10 is guided to constitute the slide opening mechanism 6.

Here, the same protrusion portion 8, the protrusion accommodation groove portion 9, and the guide inclined surface 10 are also formed in the other plate member 7a.

In the loose-leaf binder 1 provided with the above-described slide opening mechanism 6, when the user relatively displaces the two substrates 2a and 2b in the extending direction thereof as shown in Fig. 4(a), the substrate 2a is provided on one of the substrates 2a, As shown by the arrow in the figure, the projections 8 of 2b slide toward the guide inclined surface 10 side in the projection receiving groove portions 9 provided in the other substrates 2b and 2a.

Next, the user causes the two substrates 2a, 2b to be further displaced relative to each other. The guiding inclined faces 10 of the respective substrates 2b, 2a of 2a, 2b and the other are in contact with each other, whereby the direction of the force in the direction in which the substrates 2a, 2b are applied by the user is guided to the inclined faces 10, As shown by a hollow white arrow in Fig. 4(b), it is converted into a direction in which the substrates 2a and 2b are rotationally displaced.

As a result, the sliding portions 10 that are in contact with each other are slid, and the projections 8 provided on the respective substrates 2a and 2b overlap each other, whereby the substrates 2a and 2b are half-finished as shown in Fig. 4(b). The ring portions 3a, 3b are rotated in the direction of opening.

Therefore, according to the sheet binder 1, the user can perform only the operation of relatively displacing the substrates 2a and 2b in the extending direction, and at least the initial opening operation of the half ring portions 3a and 3b based on the rotational displacement of the substrates 2a and 2b can be generated. Therefore, the operability of the loose-leaf binder 1 by the user when the half-ring portions 3a and 3b are opened can be greatly improved.

Further, as described above, although the torsion coil spring is used and the two leg portions are disposed to be sandwiched between the two substrates, the automatic rotational displacement of the substrate is achieved, but the torsion coil spring is In the arrangement, the workability of assembling the two-piece member at the time of manufacturing the loose-leaf binder is lowered, so that there is a case where it is particularly unsuitable for mass production of the loose-leaf binder.

On the other hand, in the loose-leaf binder 1 according to the embodiment of the present invention, a general coil spring as shown in FIG. 5 has a relative displacement of only the two substrates 2a and 2b against each other in the extending direction. The spring biasing member RM of the direction biasing is disposed on the back side B side of the substrates 2a, 2b as shown in FIG. 6, and can also be operated by the relative displacement of the substrates 2a, 2b by the user, based on the sliding open mechanism described above. The function of 6 produces a rotational displacement of the substrates 2a, 2b in the direction in which the half-ring portions 3a, 3b are opened, so that it is not necessary to use a torsion coil spring, which is advantageous from the viewpoint of manufacturing efficiency.

Further, as in the sliding open mechanism 6 described above, each of the substrates 2a and 2b Providing the pair of inclined faces 10 is not an essential configuration for the present invention. For example, although illustration is omitted, even if one of the substrates is provided with an inclined surface that is inclined with respect to the extending direction, and the other substrate is provided with a protruding portion that slides on the inclined surface, the substrate can be realized. The rotational displacement of the relative displacement. In other words, a shape in which a direction in which the force in the extending direction of the user acts can be converted into a direction in which the half ring portion is rotationally displaced can be formed in a portion adjacent to each other between the two substrates.

Further, in the loose-leaf binder 1 of the present embodiment, as is apparent from Fig. 6, in order to realize the rotation of the substrates 2a, 2b which can move the half-ring portions 3a, 3b between the open position and the closed position. The displacement is provided on the back surface B of at least one of the substrates 2a and 2b, and is provided integrally with one of the substrates 2a and 2b so as to be integrally formed from the back surface B and two or more columns arranged apart from each other in the extending direction of the substrates 2a and 2b. The shaft connecting portion 11 is provided, and between the shaft connecting portions 11, a shaft 12 is provided between the shaft connecting portions 11 at a predetermined interval from the back surface B and extending parallel to the substrates 2a and 2b, and the both ends of the shaft 12 are fixed. Each end portion is integrally coupled to each of the shaft coupling portions 11. Further, the other surfaces of the substrates 2b and 2a are integrated with the other substrates 2b and 2a in the extending direction of the substrates 2a and 2b and at the adjacent positions corresponding to the arrangement positions of the fixed ends 12 at the both ends. The shaft grip portion 13 around the both ends of the fixed shaft 12 is provided in addition to one of the circumferential directions.

Further, here, the shaft holding portions 13 of the other substrates 2b, 2a are fitted around the both ends of the fixing shaft 12 so as to be fitted to the both ends of the one of the substrates 2a, 2b to fix the shaft 12, and the two substrates 2a are connected to each other. 2b, and the shaft holding portion 13 can be relatively slidably displaced about the both ends of the fixed shaft 12, whereby the substrates 2a, 2b can be rotationally displaced about the both end fixing shafts 12.

According to this configuration, it can be integrally formed on each of the substrates 2a and 2b. Since the shaft 12 and the shaft holding portion 13 are fixed at both ends, the rotation of the substrates 2a and 2b is performed. Therefore, it is not necessary to separately provide a shaft member such as a metal, and as a result, the manufacturing efficiency can be improved by reducing the number of parts. , the cost of materials is reduced.

Further, in the present embodiment, each of the substrates 2a and 2b is provided with one or more end fixing shafts 12 and two or more shaft coupling portions 11 on one side spaced apart from the central portion in the extending direction thereof. One or more shaft grips 13 are provided on the other side of the extending direction. Further, here, the number or the number of the fixed end shafts 12 and the shaft gripping portions 13 disposed at a distance from the central region of the extending direction are set to be equal to each other (for example, three or three). The one plate member 7a and the other plate member 7b are formed in the same shape.

Further, in the loose-leaf binder 1, the shaft gripping portion 13 is formed in a cylindrical shape such as a cylinder, and the side wall of the cylindrical shaft gripping portion 13 is provided with a substrate as shown in Figs. The slits 13a extending in the axial direction in the direction in which the extending directions of 2a and 2b are parallel are parallel. By the slit 13a, the both ends of the fixed shaft 12 can be fitted into the shaft grip portion 13.

Here, in the present invention, as shown in FIGS. 6 and 7, it is preferable that the shaft holding portion 13 or the shaft coupling portion 11 adjacent to each other among the shaft holding portion 13 and the shaft coupling portion 11 described above The end surface is provided with an engaging recess 14 recessed from the end surface, and an end surface of the shaft holding portion 13 or the shaft connecting portion 11 adjacent to the end surface is provided with an engaging convex portion 15 which is attached to the half ring The latching positions of the portions 3a, 3b are embedded in the engaging recess portion 14, and are disengaged from the engaging recess portion 14 with relative displacement in the extending direction of the substrates 2a, 2b.

In the case shown in FIGS. 6 and 7, a part of the shaft grip portion 13 and the shaft coupling portion 11 may be engaged with the slit 13a provided in the shaft grip portion 13 by using the above-described engagement convex portion 15 to be used. This slit 13a serves as the engagement recessed portion 14.

The engaging recessed portion 14 and the engaging convex portion 15 are engaged with each other at the locking positions of the half ring portions 3a and 3b, and function as a locking means for restraining the half ring portions 3a, 3b at the blocking position.

On the other hand, when the user relatively displaces the substrates 2a and 2b in the extending direction thereof in order to open the half ring portions 3a and 3b, the engaging convex portion 15 is detached from the engaging concave portion 14 to release the lock, and then, according to The function of the above-described sliding opening mechanism 6 is rotatably displaced in the direction in which the substrates 2a and 2b are opened to the half ring portions 3a and 3b, and the engaging convex portion 15 is provided with the engaging recessed portion 14 under the action of a predetermined frictional force. The shaft grip portion 13 or the end surface of the shaft coupling portion 11 slides.

At this time, the frictional resistance between the end faces of the shaft gripping portion 13 or the shaft coupling portion 11 and the engaging convex portion 15 that slides there is increased, and in order to adjust the opening state of the half ring portions 3a and 3b to the open position, In Fig. 8, as shown in the rear view of one of the plate members 7b, it is preferable that the end faces of the shaft holding portion 13 or the shaft coupling portion 11 provided with the engaging recessed portions 14 are provided with projections from the end faces. The sliding portion 16 is a sliding portion 15 that is detached from the engaging recess portion 14 by the relative displacement of the substrates 2a, 2b in the extending direction of the substrate, and the rotational displacement of the substrate 2a, 2b Abut against sliding.

In the present embodiment, the above-described convex portion sliding region 16 is protruded from the end surface of the shaft holding portion 13 so as to protrude from the end surface of the shaft holding portion 13 as a slit 13a functioning as an engaging concave portion. A sliding surface 16a formed by gradually decreasing the protruding height from the back surface B of the substrates 2a and 2b toward the slit 13a side is formed at a position between the back surfaces B of the substrates 2a and 2b. . Further, here, the side surface of the convex portion sliding region 16 adjacent to the sliding surface 16a is used as the stopper surface 16b.

In addition, the convex portion sliding region 16 is integrally formed on the end surface of the shaft holding portion 13 and the substrate 2a, Back B of 2b.

According to the loose-leaf binding device 1 provided with the convex portion sliding region 16, after the locking engagement portion 14 and the engaging convex portion 15 are unlocked as described above, the rotation displacement of the substrates 2a and 2b is as shown in Fig. 11 ( a), the shaft grip portion 13 provided with the convex portion sliding region 16, and the engaging convex portion 15 at the end surface of the adjacent shaft coupling portion 11 are placed on the sliding surface 16a of the convex portion sliding region 16, and are elastic Under the action of the elastic pressure of the member RM, it slides on the sliding surface 16a.

Further, after the engaging convex portion 15 exceeds the sliding surface 16a of the convex portion sliding region 16, the engaging convex portion 15 falls over the elastic pressure of the elastic member RM in the extending direction as shown in Fig. 11(b). The front end of the convex portion sliding region 16 abuts against the stopper surface 16b of the convex portion sliding region 16. As a result, as shown in FIG. 12, when the half ring portions 3a and 3b reach the open position at a predetermined opening angle θ, the engagement convex portion 15 abuts against the stopper surface 16b of the convex portion sliding region 16 to prevent the substrate. The rotation displacement of 2a, 2b in the direction of return to the blocking position of the half ring portions 3a, 3b, therefore, the opening angle θ of the half ring portions 3a, 3b can be maintained. Further, by lowering the projection height of the convex portion sliding region 16 from the end surface of the shaft grip portion 13, the user can cause the force to act only in the closing direction of the half ring portions 3a, 3b, whereby the engaging convex portion 15 slides over the convex portion. The region 16 moves the half ring portions 3a, 3b to the locked position. Further, in Fig. 13, the state in which the half ring portions 3a, 3b of the loose-leaf binder 1 are opened is shown in a side view.

The engagement recessed portion 14 (slit 13a), the engagement convex portion 15, and the convex portion sliding region 16 constitute a locking means Lc for providing an opening and holding mechanism for performing the following functions, that is, in the half ring portion 3a, The latching position of 3b prevents the half ring portions 3a, 3b from opening when the substrates 2a, 2b are not relatively displaced, and on the other hand, in the open position of the half ring portions 3a, 3b, inhibiting the half ring portions 3a, 3b from unintentionally closing The open state of the half ring portions 3a, 3b is maintained. In Figures 14(a) and (b) In this case, the engagement recessed portion 14 (slit 13a), the engagement convex portion 15, and the convex portion sliding region 16 of the locking means Lc with the opening maintaining means are shown in a partially enlarged perspective view of each of the plate members.

As another locking means, only one of the engagement recesses 14 provided in one of the substrates 2a and 2b and one of the engagement projections 15 provided on the other of the substrates 2b and 2a can be provided, and only half of the prevention can be provided. The general locking means for opening the ring portions 3a, 3b in the locked position of the half ring portions 3a, 3b, or the opening prevention for preventing the half ring portions 3a, 3b from being opened at the blocking positions of the half ring portions 3a, 3b The function and the locking means Lo of the opening restriction mechanism that prevents the half ring portions 3a, 3b from opening beyond the predetermined opening angle θ at the open position.

The locking means Lo with the opening restriction mechanism, as shown in FIG. 15, for example, two sets of engaging projections which are provided in each of the shaft holding portion 13 and the shaft coupling portion 11 adjacent to each other on the two substrates 2a, 2b 15 and the engagement recess 14 are formed. More specifically, in the case shown in FIG. 15, the shaft grip portion 13 of one of the substrates 2a is provided with the engagement recess 14 as the slit 13a, and the end surface of the shaft grip portion 13 is used for the circumference. The engagement convex portion 15 is provided at a distance from the slit 13a in the direction. Further, the shaft coupling portion 11 of the other substrate 2b is provided with an engagement recess 14 corresponding to the engagement projection 15 on the side of one of the substrates 2a, and a card corresponding to the slit 13a on the side of the substrate 2a. The convex portion 15 is combined.

According to the locking means Lo of the opening and closing mechanism, the two substrates 2a, 2b are relatively displaced in the extending direction thereof, and the locking of the two sets of the engaging convex portions 15 and the engaging concave portions 14 is released, and then halfway. When the ring portions 3a, 3b are opened to the open position of the predetermined opening angle θ, the respective engaging convex portions 15 of the two sets of the engaging convex portions 15 and the engaging concave portions 14 are mutually abutted as shown in the cross-sectional view of FIG. Thereby, it is possible to prevent the half ring portions 3a, 3b from opening beyond their opening angle θ to restrict further opening of the half ring portions 3a, 3b.

Further, in the locking means Lo with the opening restriction mechanism, the engagement convex portion 15 of the shaft coupling portion 11 provided on the other substrate 2b side is formed to be engaged as shown in Fig. 15 (a). a convex portion extending portion 15a extending toward the one side of the substrate 2a, and a portion of the slit 13a of the shaft holding portion 13 of the one substrate 2a on the side of the substrate 2a, as shown in Fig. 15(b), The accommodating space 13b into which the convex portion extending portion 15a enters in the locked state of the half ring portions 3a, 3b is formed so as to be recessed into the substrate 2a side.

The convex portion extending portion 15a and the accommodating space 13b are engaged with each other in the locked state of the half ring portions 3a, 3b to more reliably prevent the substrates 2a, 2b from being unintended in the locked state of the half ring portions 3a, 3b. Separate. Further, when the substrates 2a and 2b are relatively displaced in the extending direction, the convex portion extending portion 15a is displaced in the extending direction of the substrates 2a and 2b, and is detached from the accommodating space 13b, and the engaged state is released.

Further, one or more of the above-described general locking means, the locking means Lc with the opening maintaining means, and the locking means Lo to which the opening restriction means is attached may be selectively provided, or two or more of them may be provided. Locking means.

In the loose-leaf binder 1 described above, as the elastic member RM, a general coil spring can be used instead of the torsion coil spring as described above, but such a general coil spring can be disposed on the sheet of the loose-leaf binder 1 The part shown in 17.

In other words, in the case shown in Fig. 17, the end faces of the two shaft connecting portions 11 which are close to each other in the central region in the extending direction of the substrate 2a, 2b are formed such that their end faces gradually become smaller toward the front end side. The tapered convex spring receiving portion 17 of the diameter. The coil spring can be disposed by fitting the end of the coil spring into the conical convex spring receiving portions.

In addition, regardless of whether or not the above-described tapered convex spring receiving portion 17 is used, The outer side surface S1 of the plates 2a and 2b is provided with a support wall portion 18 that sandwiches the coil spring from both sides in the radial direction of the coil spring as shown in Fig. 17, whereby the unintended fall of the coil spring can be prevented.

1‧‧‧ Loose-leaf binding

2a, 2b‧‧‧ substrate

3a, 3b‧‧‧ half-ring section

4a, 4b‧‧‧ front end

5a, 5b‧‧‧ grasping part

6‧‧‧Sliding open institutions

7a, 7b‧‧‧ board components

F‧‧‧ surface

S1‧‧‧ outside

Claims (9)

A loose-leaf binding device comprising: two substrates arranged adjacent to each other in a direction parallel to each other; and a plurality of opposite half-ring portions formed on each of the substrates, and extending on the surface side of the substrate and mutually forming together a ring shape; by means of the rotational displacement of each substrate, the plurality of pairs of half ring portions are adjacent to each other at the respective front ends of the pair of the half ring portions to form a ring-shaped blocking position and the pair of half Moving between the open positions where the respective front ends of the ring portions are separated from each other; wherein at least one of the two or more axes which are swelled from the back surface and are disposed apart from each other in the extending direction of the substrate are integrally provided on the back surface of at least one of the substrates a connecting portion and a shaft extending in parallel with the substrate between the two or more shaft connecting portions and spaced apart from the back surface, and each end portion is fixed to one or more ends of each of the shaft connecting portions; and On the back side of the other substrate, at a position adjacent to the fixed-axis of the both ends of the one of the substrates, one portion of the circumferential direction of the fixed-axis is integrally provided And a plurality of shaft holding portions surrounding the fixed shafts at both ends; the two substrates are rotatably displaceable around the fixed shafts of the two ends held by the shaft gripping portion; adjacent portions of the two substrates are adjacent to each other Each of which is provided with a sliding opening mechanism that slides in contact with each other with relative displacement in the extending direction of the substrate, thereby generating a rotational displacement of the substrate that separates the front ends of the paired half ring portions from each other . The loose-leaf binding device of claim 1, wherein each of the adjacent portions of the two substrates is disposed in a front view to be inclined with respect to an extending direction of the substrate, and And the sliding opening mechanism is formed by the guiding inclined surface by the at least one pair of guiding inclined surfaces that are in contact with each other in relative displacement along the extending direction of the substrate. The loose-leaf binding device of claim 2, wherein a projection protruding from the adjacent surface is provided on each of adjacent surfaces of the two substrates, and the adjacent surface is continuous with the projection The recessed projection receiving groove portion is provided with the guide inclined surface from the protruding portion to the projection receiving groove portion. A loose-leaf binder according to claim 1, wherein an elastic member that biases the two substrates toward each other in a direction opposite to the relative displacement in the extending direction of the substrate is disposed on the back side of the substrate. The loose-leaf binding device of claim 4, wherein an end surface of the shaft holding portion or the shaft coupling portion is provided with an engagement recess recessed from the end surface, and the shaft grip portion or the shaft coupling portion is An end surface adjacent to the end surface is provided with an engaging convex portion which is fitted into the engaging recessed portion at a locking position of the half ring portion and is engaged with the relative displacement along the extending direction of the substrate The recess is detached. The sheet binder according to claim 5, wherein the shaft holding portion is formed in a cylindrical shape, and a slit extending over the entire axial direction of the shaft holding portion is provided on a side wall of the cylindrical shaft holding portion. Further, the slit is an engagement recess in which the engagement convex portion is fitted. The loose-leaf binding device of claim 5, wherein an end face of the shaft holding portion or the shaft connecting portion provided with the engaging recess is provided by a relative displacement along an extending direction of the substrate The engagement surface of the engagement projection that is disengaged from the engagement recess is abutted against the stop position of the half ring portion. A loose-leaf binding device according to claim 5, wherein the engaging recess is provided An end surface of the shaft grip portion or the shaft coupling portion is provided with a convex portion sliding region from the end surface, the convex portion sliding region being detached from the engaging recess portion by relative displacement in a direction in which the substrate extends The engagement convex portion abuts and slides when the substrate is displaced by the rotation, and the convex portion sliding region increases the frictional resistance between the engagement convex portion and the end surface accompanying the rotational displacement of the substrate. The loose-leaf binding device of claim 5, wherein two sets of engaging convex portions and engaging concave portions are provided at end faces of the shaft holding portions or the shaft connecting portions adjacent to each other to make the engaging portions The convex portions abut each other at an open position of the half ring portion.