JP3056229U - Double-sided file bracket - Google Patents

Abstract

(57) [Problem] To provide a double-sided file metal fitting which can release the lock of a comb plate by a stepwise and reliable operation, and can easily remove and lock the comb plate. . Kind Code: A1 A double-sided file fitting (M) comprising a substrate (1), a side plate (2) and a comb plate (3).
(1) is provided with upright portions (11) on both side edges.
(2) is composed of a lower side plate (21) and an upper side plate (22), and the lower side plate (21) is rotatably and outwardly biased to the upright portion (11) of the substrate (1) and is hinged, The upper side plate (22) is rotatable at the upper end of the lower side plate (21) and is urged toward the substrate (1) to be hinged,
At the free end of the upper side plate (22), a locking knob piece (22c) for locking the upper part of the comb plate (3) is formed, and at the lower side plate (21), the comb plate is formed.
(3) Locking hole (21c) for locking the lower part and side plate side convex piece (21d)
(C) At the lower end of each comb plate (3), a locking claw (34)
And a comb-side convex piece (35), and a locking knob piece at the upper end thereof.
(22c) is formed with a locking concave portion (33).

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a metal fitting for a file to be used for binding a document or the like, in which the locking of the comb plate can be released by a particularly reliable operation, and the removal and locking of the comb plate are easy. The present invention relates to a double-sided file fitting that can bind and remove a document from either the left or right side.

[0002]

[Prior art]

 File fittings for binding documents and the like are classified into multi-hole type and two-hole type according to the number of binding rods (binding tubes) inserted into the document. A comb plate (male comb plate) with two attached comb plates and a comb plate (female comb plate) with two corresponding binding tubes are attached. One of the comb plates is rotatably (but not removable) attached to the substrate. On the other hand, single-opening type metal fittings configured by engaging and disengaging (removably) the other comb plate with respect to a substrate are widely used.

[0003] Such a one-sided opening type has a drawback in that when the amount of documents to be bound increases, the documents can only be taken out or bound from one side, so that binding and taking out the documents becomes cumbersome. This is not desirable from the viewpoint of organizing documents.

[0004] In order to solve such an inconvenience, various metal fittings for binding and taking out documents from either the left or right side have been proposed. For example, Japanese Utility Model Application No. 58-44963 (Utility Model Registration No. 1807123), Japanese Patent Application No. 62-77556 (Japanese Patent No. 1747206), and Japanese Utility Model Application No. 3-27522 (Utility Model Registration No. 2522816). .

[0005] Utility model registration No. 1807123 discloses that an opening / closing plate (comb plate) to which a male binding rod is attached and a comb plate to which a female binding rod is attached are locked by a locking plate (side plate) so that the left and right sides are locked. The comb plate can be disengaged even from the side. The locking plate (side plate) is rotatably (but not removable) attached to the substrate by a hinge, so that when the locking of one comb plate is released, the comb plate is locked by the other. It can be pivotally moved around the hinge while it is locked to the plate. However, as the number of documents increases and the thickness increases, the locking plate comes off the comb plate naturally, and because the locking plate is small, the weight of the document makes the locking plate (hinge) easily broken. Therefore, there is a problem that the comb plate cannot be opened and closed smoothly with a hinge.

In addition, Japanese Patent No. 1747206 and Utility Model Registration No. 2528216 disclose that the size of the locking plate (side plate) is increased and attached to the substrate with a number of butterfly rings, and that the comb plate and the side plate are securely locked. Even if the number of documents to be stapled increases, the interlock of the comb plate is naturally released. It should be noted that Japanese Patent No. 1747206 and Utility Model Registration No. 2528216 are different from each other only in the configuration of the flange portions and the pressing and holding plates (hereinafter referred to as “position control means”) provided on each of the side plate and the comb plate. is there.

[0007]

[Problems to be solved by the invention]

 However, the opening / closing operation of the above-mentioned metal fittings is not clear, and especially in the opening operation, the interlock of the comb plate is released and opened. Further, the comb plate on the side where the lock is released is only slightly jumped up by the biasing spring, and to remove the comb plate, it must be lifted with a finger or the like. Furthermore, in order to reattach the comb plate, the side plate may fall down in the direction of the substrate (in the direction of the substrate). In this case, it is necessary to tilt the side plate outward with a finger or the like so that the comb plate can be easily received. It is.

SUMMARY OF THE INVENTION In view of the foregoing, an object of the present invention is to make it possible to release the locking of a comb plate by a stepwise and reliable operation, and to facilitate removal and locking of the comb plate. An object of the present invention is to provide a double-sided file fitting.

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a double-sided file fitting (M) comprising a substrate (1), a side plate (2) and a comb plate (3), wherein (A) the substrate (1) , Upright portions (11) are provided opposite to both side edges in the longitudinal direction, and (a) the side plate (2) includes a lower side plate (21) and an upper side plate (22); The lower side plate (21) is rotatable on the upright portion (11) of the substrate (1) and is urged outward to be hinged.b) The upper side plate (22) is connected to the lower side plate. (21) is rotatable in an opening direction with respect to the lower side plate (21), and is urged toward the substrate (1) to be hinged; c) the upper side plate (22) A lock knob piece (22c) for locking the upper end of the comb plate (3) is formed at the free end of the comb plate (3), and the lower end of the comb plate (3) is formed at the lower side plate (21). A locking hole (21c) for locking and a side plate-side convex piece (21d) are formed. (C) The comb plate (3) is a binding rod. (31a) and a female comb plate (32) with a binding tube (32a), and the lower end of each comb plate (3) is engaged with the locking hole (21c). A locking claw (34) to be stopped and a comb-plate-side convex piece (35) in contact with the side-plate-side convex piece (21d) are provided, and an upper end thereof is fitted with the locking knob piece (22c). The present invention proposes a double-opening file fitting (M) characterized in that a stop recess (33) is formed (claim 1).

[0010] According to this, in the comb plate, the locking claw is locked at the lower end by the locking hole of the lower side plate, and the locking recess is locked by the locking knob piece of the upper side plate at the upper end. Since both the upper and lower ends of the comb plate are firmly locked and held by the side plates, the documents can be securely bound. Also, when removing documents, first open the upper side plate outward to release the lock on the upper part of the comb plate, and then release the lock on the lower end of the comb plate. The lock can be released. Further, when the lock between one of the comb plates and the side plate is released, the side plate is always urged outward by a spring, so that the first butterfly support shaft of the locked side plate is used as a rotation center. Then, the comb plate jumps up and rises, and the male and female engagement of the comb plate is easily released. At the same time, the unlocked side plate is opened outward by a spring to facilitate the engagement of the comb plate again. In addition, when the comb plate is pushed in the direction of the substrate, the side plate rises and turns inward by the side plate-side protrusion and the comb plate-side protrusion, so that the comb plate and the side plate are automatically locked. This is also possible.

The present invention also provides that the first butterfly support shaft (H1) is provided with a plate-like member (4) for pressing the locking claw (34) locked in the locking hole (21c). It is a feature (claim 2). According to this, even when the comb plate is fully opened, the locking claw (and the lower end portion of the comb plate) is pressed, so that the locking claw is difficult to be removed from the locking hole, and the comb plate is detached from the side plate. It becomes difficult.

[0012]

[Embodiment of the invention]

 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the entire double-sided file fitting according to the present invention. FIG. 2 is a perspective view of one side plate and a partly cut-away substrate. FIG. 3A is a perspective view of a male comb plate, and FIG. 3B is a perspective view of a female comb plate. FIG. 4A is a conceptual cross-sectional view of a main part, and FIG. 4B is a conceptual cross-sectional view of a state where the comb plate is opened in FIG. FIG. 5 is an operation diagram when the metal fitting is opened. FIG. 6 is an operation diagram when the fitting is closed.

<< Structure >> The double-ended file fitting M according to the present invention comprises a substrate 1, a side plate 2, and a comb plate 3, as shown in FIG. Hereinafter, the structure will be described in detail.

Substrate The substrate 1 is attached to the spine portion of the file main body with the stopper 12. The substrate 1 has a rectangular shape, and upright portions 11 are provided on both sides in the longitudinal direction so as to face each other. Side plates 2 to be described later are attached to the upright portions 11 via a first butterfly support shaft H1 (FIG. 2 and the like). A comb plate 3 described later is locked by the side plate 2 (FIG. 1 and the like). In addition, each upright portion 11 is provided with a first butterfly support ring 11a at a predetermined location for attaching the first butterfly support shaft H1.

Side Plates (Mainly See FIG. 2) The side plates 2 are attached to the upright portions 11 of the substrate 1 as described above, respectively, and serve to lock the comb plate 3. The side plate 2 includes a lower side plate 21 and an upper side plate 22, and the lower side plate 21 and the upper side plate 22 are connected via a second butterfly support shaft H2. The upper end of the lower side plate 21 and the lower end of the upper side plate 22 are provided with a predetermined number of second support rings 21b and 22b, respectively, and the second support shaft H2 is inserted therethrough.

At the lower end of the lower side plate 21, similarly to the upright portion 11, a predetermined number of first butterfly rings 21 a for inserting the first butterfly shaft H 1 are provided. The lower side plate 21 (side plate 2) is urged by a first spring S1 attached to the first butterfly support shaft H1 to always open outward with respect to the substrate 1 as shown in FIG. I have.

When the first spring S 1 releases the locking of one of the comb plates 3, the comb plate 3 (the male comb plate 31 and the female comb plate 32) moves the locked side plate 2. Then, the comb plate 3 jumps up around the first butterfly support shaft H1 as a rotation center, so that the male and female engagement of the comb plate 3 can be easily removed (FIG. 4 (b)). As described above, the first spring S1 not only opens the side plate 2 to the outside but also has a role of flipping up the comb plate 3 at the same time. Therefore, the first spring S1 must be stronger than the second spring S2 described below (or Is desirable).

The upper side plate 22 is rotatably hingedly connected to the lower side plate 21 by the second butterfly shaft H2 as described above. The upper side plate 22 is constantly urged toward the substrate 1 (inward) by a second spring S2 attached to the second butterfly support shaft H2. Since the upper side plate 22 plays a role of making the upper end portion (free end portion) of the comb plate 3 detachable, the upper side plate 22 can rotate about the second butterfly support shaft H2 so as to realize this role. It is important to do so. The movement of the upper side plate 22 is restricted by the second butterfly ring 21b provided on the lower side plate 21 and the like, so that the upper side plate 22 does not tilt more inward than the axis (not shown) of the lower side plate 21. . Accordingly, the upper side plate 22 is always substantially straight or slightly inwardly inclined with respect to the lower side plate 21 in a side view (FIG. 4B). When the upper side plate 22 is slightly tilted inward from the lower side plate 21 and is urged inward, only the comb plate 3 is pushed into the substrate 1 side, and the side plate-side convex pieces 21d and The lower end and the upper end of the comb plate 3 can be automatically locked to the side plate 2 by the action of the comb plate-side convex piece 35, respectively.

The second spring S2 is provided so as to bias the upper side plate 22 inward, but may be biased outward. When urged inward, the locking of the side plate 2 and the comb plate 3 is facilitated, and when urged outward, the engagement is easily released. Further, when the comb plate 3 is biased inward, the comb plate 3 can be easily locked to the side plate 2 automatically as described above. In the following description, a case in which the bias is applied inward will be described.

The lower side plate 21 is provided with a locking hole 21c for locking a locking claw 34 attached to a lower end portion of the comb plate 3 described later (FIG. 1, etc.). The larger the number of the locking holes 21c and the locking claws 34, the more securely the comb plate 3 is locked by the lower side plate 21, but the number varies depending on the strength of the locking claws 34 and is large and strong. As long as the locking claw 34 is used, the number of the locking hole 21c and the number of the locking claw 34 may be one. In each figure, three pairs of locking holes 21c and locking claws 34 are shown.

The upper side plate 22 is provided with a locking knob piece 22c at a free end (upper end) thereof, which locks a locking concave portion 33 of the comb plate 3 described later. (FIG. 1 etc.). That is, the comb plate 3 has its upper end locked by the locking knob piece 22c of the upper side plate 22 and its lower end locked by the locking hole 21c of the lower side plate 21. The locking knob piece 22c can be provided at an arbitrary position on the free end.

Further, on the lower side plate 21, a side plate-side convex piece 21d is provided so as to hang down so as to bypass the first butterfly support shaft H1. The role of this will be described later.

The first and second springs S1 and S2 may be wound springs or leaf springs with the lower side plate 21 (side plate 2) on the outside and the upper side plate 22 on the inside (or outside in some cases). It is not limited to a specific one as long as it can be activated. Furthermore, it is not limited to a spring.

Comb plate (mainly see FIG. 3) The comb plate 3 is composed of a male comb plate 31 having a binding rod 31a and a female comb plate 32 having a binding tube 32b. Two rods 31a are provided, and the female comb plate 32 is provided with two binding tubes 32a. The two-hole punched document is bound between the comb plates 3 by the male and female fitting of the binding rod 31a and the binding tube 32a. It should be noted that there is no problem in closing the document even if the binding rod and the binding tube are provided on one of the comb plates so that the gender of the comb plate is not distinguished.

Each of the comb plates 3 (the male comb plate 31 and the female comb plate 32) is provided with a locking recess 33 at an upper end thereof, and the upper end is locked by a locking knob piece 22 c of the upper side plate 22. Structure. At the lower end, a number of locking claws 34 are provided corresponding to the above-described locking holes 21c, so that the upper end and lower end of the comb plate 3 are securely locked to the side plate 2. Become. Further, a comb plate-side convex piece 35 having the number, position and shape corresponding to the side plate-side convex piece 21d provided on the lower side plate 21 is provided at the lower end.

The male and female comb plates 31 and 32 preferably have the same configuration as that of the male and female members, except that a binding rod 31a and a binding tube 32a are provided. With the same configuration, it can be locked to either side of the left and right side plates 2.

The plate-shaped member 4 will be described later in detail, but is provided as necessary to prevent the locking claw 34 from coming off from the locking hole 21c (FIG. 2, etc.). This plate-like member 4 is preferably attached to the first butterfly support shaft H1.

<< Use >> Next, a method of using the double-sided file fitting M according to the present invention will be described in detail mainly with reference to FIGS. In the description of “use”, “comb plate 3” indicates any one of “male comb plate 31” and “female comb plate 32” unless otherwise specified.

Removal of Comb Board In order to bind a document with the double-sided file fitting M according to the present invention, first, at least one of the comb plates 3 of the locked file fitting M is released, and This must be removed. For that purpose, a finger such as a thumb is put on the locking knob piece 22c of the upper side plate 21 that locks the comb plate 3, and the finger is pushed down outward (in a direction opposite to the substrate 1). As a result, the upper side plate 22 provided with the locking knob piece 22c rotates around the second butterfly support shaft H2, and the locking of the locking recess 33 by the locking knob piece 22c is released. The upper end of the comb plate 3 is in a free state. In this state, since the lower end of the comb plate 3 is still locked by the lower side plate 21, the comb plate 3 cannot be removed.

Incidentally, the rotation of the upper side plate 22 about the second butterfly support shaft H 2 is limited to approximately 60 degrees with respect to the axis (not shown) of the lower side plate 21. This angle must have at least a sufficient angle to release the lock. When the user lifts his / her finger while the upper side plate 22 is open outward, the upper side plate 22 is always urged inward by the second spring S2. (A position slightly inside from this).

Subsequently, when the locking knob piece 22c is further opened outward, the rotation of the upper side plate 22 about the second butterfly shaft H2 has reached the limit. Rotation about the butterfly support shaft H1 starts (FIG. 5B). Assuming that the rotation of the upper side plate 22 is the first stage rotation, the engagement between the engagement hole 21c and the engagement claw 34 is released by the second stage rotation, and the lower end of the comb plate 3 Is also in the free state.

At the moment of the free movement, the comb plate 3 rotates the first butterfly support shaft H1 by the first spring S1 attached to the first butterfly support shaft H1 of the side plate 2 in the locked state. It turns and rises up as a center (Fig. 4 (b)). This makes it easy to disengage the male and female members of the comb plate 3 and to bind the documents. On the other hand, the side plate 2 on the unlocked side is opened outward by the first spring S1, and is again prepared (standby) so that the comb plate 3 can be easily locked (FIG. 4B). ). In FIG. 5C, when the finger is removed from the upper side plate 2, as described above, the upper side plate 22 is urged inward by the second spring or the like. FIG. 4 (b) as a whole is almost straight (slightly inwardly inclined). In this regard, as with the conventional double-sided file metal fittings, the comb plate is first raised with a finger to remove the comb plate, or the side plate is tilted outward with a finger to lock the comb plate to the side plate, and the comb plate is greeted. This is convenient because there is no need to make it easier. In addition, the operation of releasing the lock of the comb plate 3 is clearly divided into two stages, and the lock of the comb plate 3 can be released while confirming the movement, thereby giving the user a sense of reliability. .

As described above, the comb plate 3 that has risen so as to jump up stops at a predetermined position because the rotation of the side plate 2 (the lower side plate 21) is restricted (FIG. 4B )), If this is forcibly moved in a direction in which it is further opened by a finger or the like, the upper side plate 21 starts to rotate about an axis, and the locking claw 34 may come out of the locking hole 21c. .

However, when the plate-shaped member 4 is provided, it presses the locking claw 34 (and the lower end of the comb plate 3), so that the locking claw 34 comes off from the locking hole 21c. To prevent The force by which the plate-shaped member 4 presses the locking claw 34 may be generated by independently providing a pressing spring on the first butterfly support shaft H1 or the like, but biases the side plate 2 outward. It may be generated by the first spring S1 (FIG. 2). In this way, the number of parts can be reduced.

As shown in FIG. 5A and the like, the locking claw 34 is provided so as to protrude outward with respect to the axis (not shown) of the comb plate 3 (the axis of the lower side plate 21). (Not shown). On the other hand, the locking hole 21c is formed in the lower side plate 21 in a planar manner. With this configuration, both are easily locked, but on the other hand, as described above, the locking claws 34 of the comb plate 3 are easily removed from the locking holes 21c. However, the angle of the locking claw 34 with respect to the axis of the lower side plate 21 is made shallow (an angle nearly parallel to the axis of the lower side plate 21), and the lower end of the locking hole 21c projects inward. If the stop holes 21c are provided in a three-dimensional (pocket-like) manner, the locking claws 34 are less likely to come off. With such a configuration, it is not particularly necessary to provide the plate-shaped member 4 for preventing the locking claw 34 from coming off.

Incidentally, in order to bind the documents, it is only necessary to release the lock of at least one of the comb plates 3 locked as described above, but it is also possible to release both locks. In this case, the comb plate 3 (male / female) is separated and removed from the file fitting M main body. Note that if documents are already bound when the comb plate 3 rises, the comb plate 3 may automatically rise as shown in FIG. 4B depending on the amount of bound documents. May not be possible.

Binding of Documents (Mainly See FIG. 6) For binding of documents, first, the comb plate 3 from which the lock is released is pulled out to disengage the male and female fittings, and the binding rod 31a (binding). The document punched with two holes is inserted into the tube 32a), and the comb plate 3 is attached again by male and female fitting.

Next, the comb plate 3 is locked to the side plate 2 again. In order to lock the comb plate 3, the comb plate 3 in the free state is pressed in the direction of the side plate 2 in the standby state and is brought close to the side plate 2. When the comb plate 3 is brought close to the side plate 2 until the side plate-side convex piece 21d and the comb plate-side convex piece 35 come into contact with each other, the side plate-side convex piece 21d is pushed by the comb plate-side convex piece 35, and the side plate 2 becomes the first butterfly support shaft. It turns around H1 and starts to stand (FIG. 6 (a)).

When the comb plate 3 is further pressed in the direction of the substrate 1, the locking claws 34 are fitted into the locking holes 21 c of the lower side plate 21, and the lower end of the comb plate 3 is locked by the lower side plate 21 (FIG. 6). (b)). In this locking, the locking claw 34 is inclined outward and protrudes from the main body of the comb plate 3 as described above, so that it is easy to fit into the locking hole 21c. When the plate-shaped member 4 is provided for pressing the locking claw 34, the plate-shaped member 4 is in a state of closing the locking hole 21c. However, as shown in FIG. 6B, the plate-shaped member 4 is bent in a “C” shape in cross section, so that the locking claw 34 can easily enter the locking hole 21c. .

After the lower end of the comb plate 3 is locked by the lower side plate 21, the upper end of the comb plate 3 and the upper side plate 22 are locked. This is because, from the state shown in FIG. 6B, by pushing the comb knob 3 in the comb plate 3 direction with a finger while further pushing the comb plate 3 in the direction of the substrate 1, the locking recess 33 is moved to the upper side plate. The latch 22 is locked by the locking knob piece 22c (FIG. 6 (c)). Alternatively, when the comb plate 3 is pushed in the direction of the substrate 1, the side plate 2 rotates further inward. Therefore, depending on the inclination of the upper side plate 22 and the biasing direction of the second spring S <b> 2, only the pushing of the comb plate 3 automatically performs The upper end of the comb plate 3 is also locked to the upper side plate 22 (the locking recess 33 is automatically locked by the locking knob piece 22c).

With the above operation, the comb plate 3 can be locked and attached to the side plate 2. The removal of the document is performed in the same manner as the above-mentioned "Removal of comb plate".

[0042]

[Effect of the invention]

 As described above, according to the present invention, a document can be reliably bound or taken out from either side of the file fitting M. Further, since both the upper end and the lower end of the comb plate 3 are firmly locked by the side plate 2, the comb plate 3 does not come off from the side plate 2 due to the weight of the document.

Further, the release of the engagement of the comb plate 3 is performed in the first step of releasing the engagement between the upper side plate 22 and the upper end of the comb plate 3, and then, the engagement between the lower side plate 21 and the lower end of the comb plate 3 is performed. Since it is clearly divided into the second stage for releasing the stop, the engagement of the comb plate 3 can be released while confirming the movement for each stage, thereby giving the user a sense of reliability.

In addition, when the locking of one of the comb plates 3 is released, the first spring S1 of the locked side plate 2 of the comb plate 3 causes the entire comb plate 3 to be centered on the first butterfly support shaft H1. Is turned up and rises so that the male and female fittings of the comb plate 3 can be easily removed and the documents can be easily bound.

Further, since the side plate 2 on the unlocked side is also opened outward with respect to the substrate 1 by the first spring S 1 for urging the side plate 2 outward, when the comb plate 3 is locked again. Then, the comb plate 3 is prepared to be easily greeted.

Further, when the comb plate 3 is pressed in the direction of the substrate 1 by the side plate-side convex piece 21 d and the comb plate-side convex piece 35, the side plate 2 rotates inward. When inclined inward from the side and urged inward by the second spring S2, the comb plate 3 is automatically locked to the side plate 2 simply by pressing the comb plate 3 in the direction of the substrate 1. You can also.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire double-sided file fitting according to the present invention.

FIG. 2 is a perspective view of a side plate and a partly cut-away substrate of the double-sided file fitting according to the present invention.

FIG. 3 is a perspective view of a comb plate of the double-sided file fitting according to the present invention. (A) is a perspective view of a male comb plate,
(B) is a perspective view of the female comb plate.

FIG. 4 is a cross-sectional view of the double-sided file fitting according to the present invention. (A) is a conceptual sectional view of a main part, and (b) is a conceptual sectional view in a state where a comb plate is opened in (a).

FIG. 5 is an operation diagram when the double-sided file fitting according to the present invention is opened.

FIG. 6 is an operation view when the double-opening file fitting according to the present invention is closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1; Board | substrate 11 ... Stand-up part 11a ... 1st butterfly support ring 12 ... Stopper 2: Side plate 21 ... Lower side plate 21a ... 1st butterfly support ring 21b ... 2nd butterfly support ring 21c ... Lock Hole 21d Side plate side convex piece 22 Upper side plate 22b Second butterfly support ring 22c Locking knob piece 3; Comb plate 31 Male comb plate 31a Binding rod 32 Female comb plate 32a ··· Binding tube 33 ··· Locking recess 34 ··· Locking claw 35 ··· Comb plate side convex piece 4; Plate member 4a ··· Butterfly ring H1; First butterfly support shaft H2; Second butterfly support shaft M ; File fitting S1; First spring S2; Second spring

Claims (2)

[Utility model registration claims] 1. A double-ended file fitting (M) comprising a substrate (1), a side plate (2) and a comb plate (3), wherein (A) the substrate (1) has two longitudinal edges. An upright portion (11) is provided facing the portion, and (a) the side plate (2) includes a lower side plate (21) and an upper side plate (22).
A) the lower side plate (21) has a lower end portion rotatable by a first butterfly shaft (H1) on an upright portion (11) of the substrate (1); and
The first spring (S1) provided on the first butterfly support shaft (H1) is urged toward the outside of the substrate (1) to be hinged, and b) the upper side plate (22) has a lower end. Part is the lower side plate (2
The upper part of (1) and the second butterfly support shaft (H2) are rotatable in an opening direction with respect to the lower side plate (21), and the second butterfly support shaft (H2).
The second spring (S2) provided on the upper side plate (22) is biased toward the direction of the substrate (1) and is hinged.c) The free end of the upper side plate (22) is attached to the comb plate (3). A locking knob piece (22c) for locking the upper end portion is formed, and a locking hole (21c) for locking the lower end portion of the comb plate (3) and a locking hole (21c) are formed in the lower side plate (21). A side plate-side convex piece (21d) is formed so as to hang around one butterfly support shaft (H1). Consists of a female comb plate (32) with a binding tube (32a), each comb plate (3)
The lower end of the lower side plate (21) has a locking claw (34) locked in the locking hole (21c) and the comb plate side convex piece (35) which is in contact with the side plate side convex piece (21d). And a locking recess (33) for fitting the locking knob piece (22c) at the upper end thereof.
(M). 2. The locking hole (2) in the first butterfly support shaft (H1).
The double-sided file fitting (M) according to claim 1, wherein a plate-like member (4) for pressing the locking claw (34) locked to 1c) is attached.