JP2003276379A - Binding implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a binding implement of which the binding rods for binding an object of filing are maintained to be almost perpendicular to a cover on the occasion of filing the object such as papers. <P>SOLUTION: The binding implement 10 has a fixing member 20 fixed to the cover 14 and a binding member 300 for binding the object A of filing. The binding member 300 is fixed rotatably to the fixing member 20 by the medium of a hinge part 30, and the fixing member 20 has the hinge part 30 formed in a rising part 22a formed in the end part on one side of a base 20 fixed to the cover 14. The binding member 300 is provided in continuity to the hinge part 30 at a projecting part 32a of a movable member 32 constituting the binding member 300. The fixing member 20, the binding member 300 and the hinge part 30 are so formed that the binding rods 38 for binding the object A of filing are maintained to be almost perpendicular to the surface 14 when the binding member 300 is developed around the hinge part 30. Thereby the object of filing can be filed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding tool, and more particularly to a binding tool for binding paper pieces such as documents and catalogs to a binding member having a plurality of cylindrical binding bars.

[0002]

2. Description of the Related Art A conventional binding device is, for example, Jpn.
As shown in No. 904, some have a fixing member (substrate 2) fixed to the cover and a binding member (side plate 3) connected to the fixing member so as to be openable and closable via a hinge portion. In this binding device, the hinge portion is located at a position considerably distant from the fixing member fixed to the cover.

[0003]

In this conventional binding tool, since the hinge portion is present at a position considerably higher than the cover, when the binding member is opened, the documents bound by the tubular binding rod are not printed. The larger the number, the more it leans toward the front cover side due to its weight, and the binding bar is originally preferable to bind a document or the like in a state where it is erected vertically. Since it faces diagonally, it becomes difficult to bind documents.

Therefore, a main object of the present invention is to provide a binding tool in which a binding rod for binding an object to be bound is kept substantially vertical to a cover when binding an object to be bound such as a document.

[0005]

A binding device according to claim 1 of the present invention comprises a fixing member fixed to a cover sheet and a binding member for binding an object to be bound, and the binding member is hinged to the fixing member. A binding tool that is rotatably fixed via a section,
The fixing member has a hinge portion extending in the longitudinal direction of the base formed at a rising portion formed at one end of the base fixed to the cover sheet and having a tapered outer surface. When the hinge is connected to the protruding portion formed on the lower portion of the movable member that constitutes the binding member and having the tapered outer surface, the tapered shape of the base when the binding member is closed and fixed to the base. The taper surface of the rising portion and the taper surface of the rising portion of the movable member of the binding member are connected to each other in a substantially flat shape, and are rotatably connected to the base. The binding tool has the fixing member, the binding member, and the hinge portion so that the binding rod for binding the object to be bound is maintained substantially perpendicular to the cover when the product is unfolded. In the binding device according to claim 2 of the present invention, the fixing member is formed at one end portion of the base fixed to the cover sheet, and a rising portion having a tapered outer surface is formed in a longitudinal direction of the base. A hinge portion extending to the binding member is formed, and the binding member is continuously provided by the hinge portion to the protruding portion formed on the lower portion of the movable member forming the binding member and having an outer side surface formed into a taper shape. When closed and fixed to the base, the tapered surface of the tapered rising portion of the base and the tapered surface of the rising portion of the movable member of the binding member are connected to each other in a substantially planar shape so that they can rotate with the base. When the binding members are continuously arranged and the binding member is unfolded around the hinge portion, the upper part of the tapered surface of the protrusion of the lower part of the movable member and / or the lower part of the movable member are separated from each other by the boundary between the backstrip and the front or back cover. Of which, under the movable member Configured to contact the top of the near boundary of the projecting portion, a binding tool according to claim 1. In the binding device according to claim 3 of the present invention, the hinge portion extends in the longitudinal direction at one end of the base fixed to the cover, and extends in the longitudinal direction at the lower portion of the movable member that constitutes the binding member. The binding device according to claim 1 or 2, which is formed in a thin shape. In the binding device according to claim 4 of the present invention, when the binding member is perpendicular to the cover with the hinge portion as the center, the movable member of the binding member is located at a position substantially parallel to the base substrate. 4. The method according to claim 1, wherein the outer surface is formed above the surface of the base substrate on the spine cover side and below the surface of the base substrate on the side opposite to the surface of the spine cover side. The binding device according to any one of the above.

[0006]

According to the invention of claim 1, when the binding member is separated from the fixing member and deployed, the binding rod for binding the material to be bound is maintained substantially perpendicular to the cover, so that the cover is a desk or the like. When placed on the horizontal plane, the binding holes that are maintained in the vertical state are easily bound by the binding holes that penetrate the binding object. According to the second aspect of the invention, when the binding member is separated from the fixed member and deployed, the upper part of the tapered surface of the projecting part of the lower part of the movable member and / or the lower part of the movable member are the spine cover and the front cover or the back cover. Touching the upper part of the boundary with
Since the tilt of the movable member toward the cover side can be suppressed and the binding rod can be maintained in a substantially vertical state, it is easy to bind the binding target with the binding holes formed in the binding target. According to the third aspect of the invention, the fixing member and the binding member can be easily integrally molded of synthetic resin, and the binding member can be opened and closed smoothly. According to the invention of claim 4, when the binding member is separated from the fixed member and deployed, even when many binding objects are bound by the binding rod, the outer surface of the movable member of the binding member is on the cover. Since it is expanded to a close position, even if the binding member tilts toward the cover side centering on the hinge part, almost all the binding bars can be maintained in the vertical state, and the binding hole is formed in the binding target with the binding hole. Easy to bind things to the binding bar.

The above-mentioned objects, other objects, features and advantages of the present invention will be more apparent from the following detailed description of the embodiments of the invention with reference to the drawings.

[0008]

1 is a perspective view showing an example of a binding tool of the present invention, and FIG. 2 is an exploded perspective view thereof. The binding tool 10 is used as a part of the file 12 and is attached to the cover 14 of the file 12. The front cover 14 includes a back cover 14a, and a front cover 14b and a back cover 14c are formed on both sides of the back cover 14a. And spine 14a
The binding tool 10 is attached to.

The binding device 10 includes a base 20 which is a fixing member fixed to the cover 14. As shown in FIG. 3, the base 20 is a substantially rectangular plate-shaped substrate 2 made of synthetic resin or the like.
Including 2. The substrate 22 is fixed to the spine cover 14a by, for example, ultrasonic welding or rivets. Two claws 24 are formed in the vicinity of one side (front cover 14b side) in the width direction of the substrate 22. The claw portions 24 are formed side by side in the longitudinal direction of the substrate 22 with a predetermined space therebetween. These claw portions 24 are formed so as to rise from the surface of the substrate 22,
The upper end portion is formed to be bent in a hook shape toward one side in the width direction of the substrate 22.

Further, two fixing inclined portions 26 are formed on both sides of the two claw portions 24 at one end (on the front cover 14b side) in the width direction of the substrate 22. The fixed inclined portion 26 is
The substrate 22 is inclined so as to become lower from one side in the width direction toward the central portion side. Further, the substrate 22
A canceling inclined portion 28 is formed at the central portion on one side in the width direction. The releasing inclined portion 28 is inclined so as to become lower from the central portion side of the substrate 22 toward the one end side. The fixing inclined portion 26 is used when binding a document or the like to the binding tool 10 and fixing it, and the releasing inclined portion 28 is used when removing a bound object A such as a document bound by the binding tool 10. .

The other side of the substrate 22 in the width direction (the back cover 14c
On the side), a movable member 32 that forms a binding member 300 that binds a material to be bound A such as a document is formed via a hinge portion 30. The movable member 32 includes a oscillating plate 34 having a rectangular plate shape, and the oscillating plate 34 is rotatably formed around the thin hinge portion 30. Hinge part 3 of swing plate 34
From the 0 side, make it orthogonal to the plane of the oscillating plate 34, and
One fixed plate 36 is formed. These fixing plates 36 are
The oscillating plate 34 is formed on both ends in the longitudinal direction. Fixed plate 3
Fixing recesses 40 are formed at the ends of each of the six.

Further, two pipe members 38 are formed so as to extend orthogonally from the surface of the oscillating plate 34 and form a binding rod through which a circular binding hole formed in a material A to be bound such as a document is inserted. Is formed. These pipe members 38 are formed at intervals in the longitudinal direction of the swing plate. Pipe member 3
8 is formed in a cylindrical shape, and one end thereof is fixed to the swing plate 34. The other end of the pipe member 38 is formed so as to be inclined.

Further, the binding tool 10 cooperates with the movable member 32 to bind a binding object A such as a document.
The fitting member 42 which constitutes 0 is included. The fitting member 42 includes a rectangular plate-shaped support plate 44, as shown in FIGS. 4 to 6.
Two insertion rods 4 are arranged at intervals in the longitudinal direction of the support plate 44.
6 is formed. The insertion rod 46 is formed at a position corresponding to the pipe member 38 extending from the swing plate 34, and by inserting the insertion rod 46 into the pipe member 38, a document can be bound.

Further, two guide plates 48 extending from one side end of the support plate 44 in the width direction so as to be orthogonal to one surface of the support plate 44 are formed. The guide plate 48 is the support plate 44.
Are formed on both sides in the longitudinal direction of the rocking plate, and are formed at positions corresponding to the fixed plates 36 formed on the swing plate 34. Guide plate 48
When the insertion rod 46 is inserted into the pipe member 38, the insertion rod 46 and the pipe member 38 are arranged on the lower surface of the fixing plate 36.
It is used to match the positional relationship with.

Inside the guide plate 48, the support plate 44
The two hooking members 50 are formed so as to be orthogonal to the plane. These hooking members 50 are used to hook on the claw portions 24 of the substrate 22. Further, as shown in FIG. 6, from the other surface of the support plate 44 to the guide plate 48,
Two curved surface portions 52 are formed. These curved surface portions 52
Is formed at a position corresponding to the fixing inclined portion 26 formed on the substrate 22 when the insertion rod 46 is inserted into the pipe member 38.

Further, as shown in FIG. 5, a detachable member mounting portion 54 is formed in the central portion of the support plate 44. The attachment / detachment member mounting portion 54 includes a wall member 56 formed in parallel with the support plate 44 on one end side in the width direction of the support plate 44, and an insertion rod 46 on the multi-end side of the support plate 44 and on the inside of the insertion rod 46. And a rib 58 projecting in the same direction as. A notch 54a is formed in the attachment / detachment member mounting portion 54, and the attachment / detachment member 60 is attached thereto.

As shown in FIGS. 7 and 8, the attaching / detaching member 60 includes a sandwiching portion 62 bent in a U shape, and sandwiching the sandwiching portion 62 so as to sandwich the cutout portion 54a forming portion of the support plate 44. To do. Attachment / detachment member mounting portion 5 of the support plate 44
On the fourth side, stoppers 64 are formed so as to extend on both sides of the sandwiching portion 62 in the longitudinal direction. As shown in FIG. 9, these stoppers 64 are caught by the ribs 58 formed on the support plate 44 to prevent the holding portion 62 from coming off the support plate 44.

Further, a bending member 68 is formed in the central portion of the holding portion 62 via a connecting portion 66. Bending member 6
8 is formed to extend in the longitudinal direction of the support plate 44,
The central portion is connected to the connecting portion 66. Bending member 6
Projections 70 projecting toward the guide plate 48 are formed at both ends of the guide plate 8. The bending member 68 is sandwiched between the support plate 44 and the wall member 56, and the detachable member 60 is stably held. Then, the convex portion 70 includes the support plate 44 and the wall member 5
It is formed so as to be exposed from between 6 in the direction of the guide plate 48.

A fulcrum member 72 formed on the fitting member 42 is in contact with the middle portion of the bending member 68. By the contact of the fulcrum member 72, the bending member 68 is bent around the fulcrum member 72 when the holding portion 62 is pushed toward the connecting portion 66 side. As a result, the convex portion 70 exposed toward the guide plate 48 is raised,
It is no longer exposed on the guide plate 48 side. Further, as shown in FIGS. 4 to 6, in the central portion of the support plate 44 in the longitudinal direction,
A window portion 74 is formed between the support plate 44 and the wall member 56. Then, when the sandwiching portion 62 is pushed toward the connecting portion 66 side, the central portion of the bending member 68 is exposed from the window portion 74.

In order to hold the document in the file 12, the pipe member 38 is inserted into the document in which the hole is formed with the detachable member 60 removed. At this time, since the tip of the pipe member 38 is inclined, the pipe member 38 can be easily passed through the document. At this time, the movable member 3
2 is in a swingable state around the hinge portion 30. Then, by inserting the insertion rod 46 of the fitting member 42 into the pipe member 38, the guide plate 48 of the fitting member 42 slides under the fixed plate 36 of the movable member 32.
When the fixed plate 36 collides with the support plate 44, the convex portion 70 of the detachable member 60 enters the fixing concave portion 40 formed in the fixed plate 36, and the fitting member 42 is fitted to the movable member 32.

In this state, the document is sandwiched between the swing plate 34 of the movable member 32 and the support plate 44 of the fitting member 42 and held by the pipe member 38. Therefore, the document is held in a swingable state. Further, by tilting the movable member 32 toward the base 20, the hooking member 50 of the fitting member 42 hits the claw 24 of the base 20, the claw 24 bends, and the hooking member 50 catches on the hook-shaped portion. Fixed.

As described above, in this binding device 10, the movement of the pipe member 38 in the extension direction is fixed by the convex portion 70 of the detachable member 60 and the fixing concave portion 40 of the movable member 32, and the fitting member 42 is pulled. The swinging of the movable member 32 is fixed by the hanging member 50 and the claw portion 24 of the base 20.

Further, even if the movable member 32 is tilted to the base 20 side in a state where the fitting member 42 is not fixed to the movable member 32, the document can be held in the file 12. In this case, the movable member 32 is tilted to the base 20 side in a state where the convex portion 70 of the detachable member 60 is not fitted in the fixing concave portion 40 of the movable member 32. When the movable member 32 approaches the base 20, as shown in FIGS. 10A and 10B, the curved surface portion 52 of the fitting member 42 abuts on the fixed inclined portion 26 of the base 20, and the support plate 44 is moved to the swing plate 34. While pushing in the direction, the face portion 52 moves on the fixing inclined portion 26. Therefore, the movable member 32 is brought closer to the base 20 so that the support plate 4
4 is pushed, the convex portion 70 of the attaching / detaching member 60 is fitted into the fixing concave portion 40, and at the same time, the hooking member 50 is moved to the claw portion 2.
Fit in the hook-shaped part of 4.

As described above, in this binding device 10, the document is held by pressing the movable member 32 against the base 20 whether the fitting member 42 is fixed to the movable member 32 or not. be able to.

When the document held in the file 12 is to be removed, as shown in FIG.
By pushing 2 along the surface of the support plate 44, the bending member 68 bends around the fulcrum member 72 as shown in FIG. Therefore, the protrusions 70 formed at both ends of the bending member 68 are raised, and the protrusions 70 are disengaged from the fixing recesses 40. This allows the fitting member 42 to move along the pipe member 38. Further, as shown in FIGS. 13 (A) and 13 (B), the bending member 68 is pushed by pushing the holding portion 62.
The central portion of the is exposed from the window 74 and hits the releasing inclined portion 28 of the base 20. Therefore, the central portion of the exposed bending member 68 moves on the releasing inclined portion 28, and the fitting rod 42 moves so that the insertion rod 46 comes out of the pipe member 38. Therefore, by pushing the sandwiching portion 62, the projection 70 of the detachable member 60 is disengaged from the fixing recess 40, and at the same time, the hooking member 50 is disengaged from the claw 24.

As described above, the binding device 10 has a structure in which it can be fixed at two places to hold a document, but the binding device 10 can be fixed and released by one operation. it can. Further, it is also possible to hold the document by the movable member 32 and the fitting member 42 and allow the document to swing in that state.

Next, the binding member 3 which is a feature of the present invention.
When 00 is separated from the fixing member fixed to the cover sheet 14 and deployed, the movable member 32 of the binding member 300 can be maintained in a substantially horizontal state, and the binding rod 38 can be erected vertically. explain.

The base 20, which is a fixing member fixed to the inner surface of the spine cover 14a that constitutes the spine 14, is a spine cover 14
a substrate 22 constituting a base 20 fixed to the inner surface of a
At one end portion (the end portion on the back cover 14c side), the rising portion 2
2a is formed, and at the other end (on the front cover 14b side),
A rising portion 22c is formed, and the rising portion 22a and the rising portion 22c are entirely formed in a tapered shape, and an outer surface of the rising portion 22a is directed upward from the substrate 22 (a movable member that constitutes the binding member 300). The taper surface 22b is formed in a tapered shape that widens (toward the 32 side).

The rising portion 22c is formed on the other side in the width direction of the substrate 22 (on the side of the front cover sheet 14b), and the binding member 3 is formed.
00 on the side of the fitting member 42 forming the binding member 300
Fitting member 4 for fixing to the fixing member when fixing and closing
It is formed so as to extend to the second side. As with the rising portion 22a, the rising portion 22c is formed in a tapered shape so as to spread outward as it goes upward, that is, toward the fitting member 42 side forming the binding member 300. Also, a tapered surface 22d is formed.

A boundary portion 14d connecting the back cover sheet 14a and the front cover sheet 14b and a boundary portion 14e connecting the back cover sheet 14a and the back cover sheet 14c are defined as the back cover sheet 14a, the front cover sheet 14b and the back cover sheet 14c. Is swelled upward (toward the binding tool 10 side) from the inner surface of the. Then, inside both boundary portions 14d and 14e (center side of spine 14a)
Is formed in a tapered shape that expands outward as it goes upward (toward the binding device 10 side) from the inner surface of the spine cover 14a. Therefore, the base 20
Is the taper surface 22d of the rising portion 22c formed at one end in the width direction (front cover 14b side) and the rising portion 22a formed at the other end in the width direction of the substrate 22 (back cover 14c side). The tapered surface 22b can be fitted between the boundaries between the front cover sheet 14b and the back cover sheet 14c formed on both sides of the spine cover sheet 14a. The base 20 is fitted between the boundary portion 14d and the boundary portion e of the cover sheet 14 without forming a gap corresponding to the tapered surface 22b of the rising portion 22a of the substrate 22 and the tapered surface 22d of the rising portion 22c. Can be dressed.

The substrate 22 of the base 20 which constitutes the fixing member and the movable member 32 which constitutes the binding member 300 are continuously provided by the thin hinge portion 30, but are continuously provided by the hinge portion 30. At the bottom of the movable member 32,
The outer surface is formed in a taper shape, and a protrusion 32a connected to the hinge portion 30 is formed.

The protruding portion 32a is provided continuously with the hinge portion 30 and is located above the hinge portion 30 (in the direction away from the fixing member).
Tapered surface 3 that spreads outward as it goes to
2b is formed. The taper surface 22b of the rising portion 22a of the base 20 forming the fixing member and the taper surface 32b of the protrusion 32a of the movable member 32 forming the binding member 300 fix the binding member 300 at a predetermined position of the fixing member. When closed, the tapered surface 22b of the tapered rising portion 22a of the base 20 of the fixed member and the tapered surface 3 of the protruding portion 32a of the movable member 32 of the binding member 300 are closed.
2b and 2b are formed to be flat.

When the binding member 300 is disengaged by operating the sandwiching portion 62 or the like which is the fixing means of the fixing member and is expanded, the upper portion of the tapered surface 32b of the protruding portion 32a of the lower portion of the movable member 32, that is, the movable member 32 The outer surface of the lower part contacts the uppermost outer edge of the boundary 14e of the cover 14,
The binding member 300 is restricted from tilting toward the back cover 14c side. Therefore, the movable member 3 of the binding member 300
The outer surface of 2 is located near the surface of the back cover 4c, and the pipe member 38, which is a binding rod, is maintained in a substantially vertical shape. That is, when the cover sheet 14 is placed on a horizontal surface such as a top plate of a desk or the like, the pipe member 38 forming the binding bar is attached to the spine cover sheet 1.
4c is maintained vertically.

In this binding tool 10, the binding member 300 is separated from the fixing member and deployed, and the pipe member 38 serving as a binding rod is centered around the hinge portion 30 so that the cover sheet 14 and particularly the back cover sheet 14c.
When the movable member 32 of the binding member 300 is substantially vertical to the fixed member substrate 22, the outer surface of the movable member 32 has the outer surface of the movable member 32 of the base 20 on the spine cover side 14a side ( Above the inner surface where the binding device 10 is fixed) (on the binding device 10 side) and on the side opposite to the surface (lower surface) of the substrate 22 of the base 20 on the spine cover 14a side (the fixing plate 36 that constitutes the binding member 300). The hinge portion 30 is formed so as to be lower than the surface facing the side). Therefore, the binding member 300 has the hinge portion 30.
When the binding device 10 is rotated about the vertical direction and the binding device 10 is perpendicular to the cover sheet 14, the movable member 32 of the binding member 300 is
At a position substantially parallel to the substrate 22 of the base 20, the outer surface thereof is above the surface of the substrate 22 of the base 20 on the spine cover side and below the surface of the substrate 22 of the base 20 on the opposite side of the surface of the spine 14a. So that it is formed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a binding device of the present invention.

FIG. 2 is an exploded perspective view of the binding device shown in FIG.

FIG. 3 is a plan view showing a base and a movable member used in the binding device shown in FIG.

4 is a plan view showing a fitting member used in the binding device shown in FIG. 1. FIG.

5 is a side view solution view of the fitting member shown in FIG. 4. FIG.

6 is a bottom view solution view of the fitting member shown in FIG. 4. FIG.

FIG. 7 is a plan view showing a detachable member attached to the fitting member shown in FIG.

8 is a side view solution diagram of the attachment / detachment member shown in FIG. 7. FIG.

FIG. 9 is an illustrative view showing a state of each part when the binding device is fixed.

10 (A) and 10 (B) are illustrative views showing a movement when fixing the binding tool.

FIG. 11 is an illustrative view showing a state when the fixed binding device is released.

FIG. 12 is an illustrative view showing a state of each part of the binding device shown in FIG. 11.

13 (A) and 13 (B) are illustrative views showing a movement when releasing a fixed binding tool.

FIG. 14 is a cross-sectional view showing a state in which the binding member is separated from the fixing member and expanded.

FIG. 15 is a schematic sectional view showing a state in which the binding member is fixed to the fixing member.

[Explanation of symbols]

A to be bound 10 binding tools 12 files 14 cover 14a spine cover 14b front cover 14c Back cover 14d, 14e border 20 base 22 Substrate 22a, 22c rising part 22b, 22d Tapered surface 24 nails 26 Fixed slope 28 Inclination part for release 30 Hinge part 32 Movable member 32a protrusion 32b taper surface 34 Swing plate 36 Fixed plate 38 Pipe members 40 Fixing recess 42 Fitting member 44 Support plate 46 Inserting punch 48 information board 50 Hook member 52 curved surface 54 Attachment / detachment member attachment part 56 wall members 58 Rizu 60 Detachment member 62 clamping part 64 stopper 66 Connection 68 Bending member 70 convex 72 Support member 74 Window 300 binding members

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shungo Matsumoto             1-22 Noninbashi, Chuo-ku, Osaka-shi             In the company Richt Lab F-term (reference) 2C017 UE03 UE07

Claims (4)

[Claims] 1. A binding member that is fixed to a cover sheet and a binding member that binds a material to be bound, and the binding member is a binding tool that is rotatably fixed to the fixing member via a hinge portion. In the fixing member, a hinge portion extending in the longitudinal direction of the base is formed at a rising portion formed at one end portion of the base fixed to the cover sheet and having a tapered outer surface. The member is continuously provided by the hinge portion to a protruding portion formed on a lower portion of a movable member forming the binding member and having an outer side surface formed into a taper shape, and the binding member is closed and fixed to the base. At this time, the tapered surface of the tapered rising portion of the base and the tapered surface of the rising portion of the movable member of the binding member are continuously connected to each other in a substantially flat shape, and are rotatably connected to the base, The binding member, When unfolded around the hinge part,
A binding tool in which a fixing member, a binding member, and a hinge portion are formed so that a binding rod for binding a material to be bound is maintained substantially perpendicular to a cover sheet. 2. The fixing member has a hinge portion extending in the longitudinal direction of the base formed at a rising portion formed at one end of the base fixed to the cover sheet and having a tapered outer surface. The binding member is continuously provided by the hinge portion to a protruding portion formed on a lower portion of a movable member forming the binding member and having an outer surface tapered, and the binding member is closed to form a base. When fixed to the base, the tapered surface of the tapered rising portion of the base and the tapered surface of the rising portion of the movable member of the binding member are continuously provided so as to be substantially flat, and are rotatably connected to the base. When the binding member is expanded around the hinge portion, the upper portion of the taper surface of the protruding portion of the lower portion of the movable member and / or
Alternatively, the binding device according to claim 1, wherein the lower portion of the movable member is configured to contact an upper portion of a boundary between the spine cover and the front cover or the back cover, which is close to the protrusion of the lower portion of the movable member. 3. The hinge portion is formed in a thin shape extending in the longitudinal direction at one end of the base fixed to the cover and extending in the longitudinal direction at a lower portion of the movable member forming the binding member. The binding device according to claim 1 or 2. 4. The outer surface of the movable member of the binding member is substantially parallel to the substrate of the base when the binding member makes the binding tool perpendicular to the cover about the hinge portion. The binding according to any one of claims 1 to 3, which is formed so as to be above the surface of the base substrate on the spine cover side and below the surface of the base substrate on the side opposite to the surface of the spine cover side. Ingredient