JP4646255B2 - Binding mechanism - Google Patents

Description

  The present invention relates to a binding mechanism for binding documents and the like, and in particular, by attaching a pressing tool to a column rising from a base plate so that the pressing tool can be moved up and down, and fastening the pressing tool to the column so that it cannot be moved relative to the column. The present invention relates to a binding mechanism that presses a file object to make it clamped.

  Conventionally, a binder for binding a file object such as a document has a cover member and a binding mechanism for binding the file object inside the cover member. In general, a binder is a two-hole type binder that forms a file through two rods or a flexible band member in two holes formed in a file object such as a document, and a hole is formed in the file object. There is also a clamp type binder in which the left end portion of the file object is pressed and clamped.

In the conventional general two-hole type binder, the position of the file object relative to the binder is determined, so the file object must be supported in a state of floating from the shelf of the bookshelf or the upper surface of the desk. As the member, a thick cover member having a large rigidity is employed, the lengths of the two rods are constant, and the width of the spine cover of the cover member is constant.
In the two-hole binder of Patent Document 1, the center of the spine cover is divided in order to make the two rods extendable and expand the width of the spine according to the increase in the thickness of the file object. The connecting pieces on both sides of the divided portion are connected by two sets of X links.

Conventional conventional clamp type binders connect the pressing plate to the base plate with a parallel link, and bias the pressing plate toward the file object by the elastic force of the torsion spring operated in the tightening direction by the operating lever. Is configured to do.
However, the binder of Patent Document 2 proposed by the inventor of the present application is based on a base plate, a pair of links, a guide mechanism for movably guiding the lower ends of these links, and the lower ends of the pairs of links in the phase approaching direction. It has a one-way lock mechanism that locks so as not to move, a switching mechanism that switches this one-way lock mechanism to a released state, and the like, and can file from a thin file object to a thick file object.

JP-A-7-132696 JP 2001-260582 A

  In the conventional general binder, since the width of the back cover of the cover member is constant, there is a limit to the thickness of the file object that can be filed. In the two-hole type binder, since two holes must be punched in the file object, the drilling is complicated, and the production cost of the cover member is high. Since the two-hole binder of Patent Document 1 is equipped with two telescopic rods, the thickness of the file object can be increased, but the structure of the back cover of the cover member is complicated and the production cost Becomes expensive.

In general clamp-type binders, strengthening the torsion spring and increasing the size of the parallel link not only causes mechanical problems, but also increases manufacturing costs. Difficult to do.
In the binder of Patent Document 2, when the file object is thin, a pair of links are in a lying posture, so it is difficult to secure a pressing force for clamping the file object, and the lower ends of the two links are moved. The guide mechanism for guiding freely becomes large, and the manufacturing cost becomes high.

  The present invention provides a binding mechanism capable of clamping from a thin file object to a thick file object, a binding mechanism that can be manufactured at low cost with a simple mechanism, and a binding mechanism that is excellent in durability and reliability. Such as providing.

The binding mechanism of the first invention (invention of claim 1) is a base plate in a binder for pressing a part of a file object so as to be able to be released in a clamped state in a state where the file object such as a document is laminated. A column that rises vertically from the base plate in a state where the base plate is in a horizontal position, and a pressing tool that is mounted on the column so as to be movable up and down and presses a file object toward the base plate, Fastening tool with upright guide hole through which the column is inserted to allow parallel movement of the pressing tool in the vertical direction with respect to the column, and fastening the pressing tool to the column so as not to be relatively movable in the thickness direction of the file object possible and a fastening releasable fastening mechanism, the column and the guide hole is formed in a substantially rectangular shape in horizontal cross section, the fastening mechanism has a guide hole around the pressing tool One having a peripheral wall, and a peripheral wall portion horizontal screw hole formed in, and an operating member having a fastenable threaded shank column is movably screwed into the screw hole with respect to the peripheral wall It is.
The binding mechanism of the second invention (invention of claim 7) is a base plate in a binder for pressing a part of a file object so that it can be released in a clamped state in a state where the file object such as documents is laminated. A column that rises vertically from the base plate in a state where the base plate is in a horizontal position, and a pressing tool that is mounted on the column so as to be movable up and down and presses a file object toward the base plate, Fastening tool with upright guide hole through which the column is inserted to allow parallel movement of the pressing tool in the vertical direction with respect to the column, and fastening the pressing tool to the column so as not to be relatively movable in the thickness direction of the file object The column and the guide hole are formed in a substantially rectangular shape in a horizontal cross section, and the fastening mechanism includes a peripheral wall portion of the guide hole and a fastening mechanism. The opposing pair peripheral wall side portions of the of the peripheral wall portion to the phase approaching direction is elastically deformed is obtained by a clamping mechanism clamping the column from both sides of the column.
When filing a file object, release the fastening mechanism and raise the pressing tool relative to the column, then set the file object, lower the pressing tool and press manually to remove the file object. After the clamped state, the fastening mechanism is fastened.

Here, it may be adopted following configuration appropriate to the arrangement of claim 1.
(1) A pair of the columns spaced apart from each other is provided, and a pair of pressing tools corresponding to the pair of columns is provided.
(2) A pair of the columns spaced apart from each other is provided, and one pressing tool common to the pair of columns is provided.

(3) The pressing tool includes a pressing plate for pressing the file object, the outer surface of the pressing tool on the pressing plate side of the outer surface of the column, and the column of the inner surface of the guide hole. On the inner surface facing the outer surface, an engagement surface is formed, on which the pressing tool is engaged with the column so as not to move relatively.

( 4 ) When the engagement surface formed on the outer surface of the column engages with the engagement surface formed on the inner surface of the guide hole, the engagement surface of the inner surface is Both the engaging surfaces are formed so as to be driven downward by the engaging surfaces.
( 5 ) Both the engagement surfaces were formed on a triangular wave surface having a sawtooth vertical cross section.

You may employ | adopt suitably the following structures for the structure of said Claim 1,7 .
( 6 ) The column has a plurality of common column pieces that are separably connected, and the length of the column can be changed by increasing or decreasing the number of column pieces.
( 7 ) The column can be separated into the base plate by selecting a column having a length suitable for the thickness of the file object from a plurality of types of columns with different lengths provided incidentally to the binder. Is attached.

It is a perspective view of the binder of the Example of this invention. It is a perspective view of the binder incorporating the spine cover enlargement member. It is a perspective view of a binding mechanism. It is a top view of a binding mechanism. It is a side view of a binding mechanism. It is principal part sectional drawing of a binder. It is a disassembled perspective view of a fastener tool. It is sectional drawing of the site | part which connected the 1st, 2nd connection part with the fastener tool. It is a perspective view of a column piece. It is a top view of a column piece. It is a horizontal sectional view of a column piece. It is a vertical sectional view of a column. It is a vertical sectional view of the main part of a column, a pressing tool, and an operation knob. It is an expanded sectional view of the a part of FIG. It is a principal part schematic sectional drawing of the cover member of a binder. It is a principal part schematic sectional drawing of the cover member of the binder which added the spine member. It is a principal part schematic sectional drawing of the cover member of the binder which added the spine member. It is a principal part schematic sectional drawing of the cover member of the binder of the example of a change. It is a principal part schematic sectional drawing of the cover member of the binder which added the spine cover expansion member to the binder of FIG. It is a disassembled perspective view of the fastener tool of the example of a change. It is a perspective view of the column piece of the example of a change. It is a top view of the column piece of FIG. It is a perspective view of the column piece of the example of a change. It is a top view of the column of the binding mechanism which concerns on the example of a change, a pressing tool, and an operation lever. It is the IIXV-IIXV sectional view taken on the line of FIG. It is a disassembled perspective view of a part of base plate which concerns on the example of a change, and three columns.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 to 2, the binder 1 is used to file various file objects P such as documents. The binder 1 includes a front cover member 2 having a front cover 3, a back cover 4, and a spine cover 5 that connects them, a split connection portion 6 provided on the cover member 2, and four sets included in the split connection portion 6. The fastener 13 (see FIG. 7), the binding mechanism 7 for binding the file object P between the front cover 3 and the back cover 4, and the cover member 2 are configured as separate members and the back cover At least one or more spine cover enlargement members 8 capable of expanding the width, and, for example, 12 sets of fasteners 13 provided incidentally to the spine cover enlargement member 8 are provided. In the following, description will be given by taking as an example the binder 1 in a horizontal posture for attaching and detaching the file object.

  The binding mechanism 7 is a clamp-type binding mechanism that performs binding in a state where the left end portion of the file object P is pressed by the hand force. Therefore, in the clamp release state, the position of the file object P with respect to the cover member 2 of the binder 1 can be set freely. The sizes of the front cover 3 and the back cover 4 of the binder 1 of this embodiment are set to be, for example, the same or slightly larger than the A4 size, and the front end (lower end when the binder 1 is erected) of the file object P is set to the cover member 2. An example of the cover member 2 in the case where the file is filed in a state of being substantially aligned with the front end is shown (see FIG. 2).

  Even when the thickness of the file object P increases, the weight of the file object P hardly acts on the cover member 2, so that a relatively thin sheet material (for example, a normal binder cover sheet and the like) that is not very rigid. Similarly, the cover member 2 is made of cardboard or synthetic resin sheet material having a thickness of about 1.0 to 1.5 mm. However, when the total weight of the file object P is supported by the cover member 2, a highly rigid cover member having a thickness of about 1.5 to 2.0 mm is adopted, and the sizes of the cover cover 3 and the back cover 4 are set to the size of the file object. It may be formed somewhat larger than the size.

  FIG. 1 shows the binder 1 in the initial state in which the thickness of the file object P is small, and FIG. 2 adds the spine cover expanding member 8 to the spine cover 5 of the binder 1 in FIG. Binder 1A is shown. As shown in FIG. 1, a spine cover 5 is integrally connected to the left end portion of the front cover 3 of the cover member 2 with a fold line 3 a as a boundary, and at least one end in the width direction of the spine cover 5 is separated into the back cover 4. The parting connection part 6 connected so that it is possible is formed. In addition, in the binder 1 used for a normal use, although it is desirable that the width | variety of the spine 5 in the thickness direction of the binder 1 and the width | variety of the spine expansion member 8 are 20-30 mm, for example, it is not limited to this range. The binder 1A shows a state in which the width of the spine cover is enlarged by adding one spine enlargement member 8, but two or more spine cover enlargement members 8 may be added.

Next, the divided connection part 6 will be described.
As shown in FIG. 1 and FIG. 8, a first connection made of a flange portion bent at a right angle toward the inner side of the back cover 4 is provided at the end of the back cover 5 on the back cover side (one end in the width direction of the back cover). Part 10 is formed. The first connecting portion 10 is formed with, for example, four circular holes 12 a and four circular holes 12 a for attaching the fastener tool 13.

  At the left end of the back cover 4 on the back cover side, a second connecting portion 11 (see FIG. 8) is formed which is a flange corresponding portion to which the first connecting portion 10 is detachably connected. Are formed with four circular holes 12 b corresponding to the four circular holes 12 a of the first connecting portion 10. The first and second connecting portions 10 and 11 are obtained by inserting the shaft portion 14b of the fastener tool 13 into the four sets of circular holes 12a and 12b and mounting the retaining ring member 15 in the annular groove 14c of the shaft portion 14b. It is connected so as to be separable (see FIGS. 7 and 8). As described above, the divided connecting portion 6 includes the first connecting portion 10 formed at the end portion of the spine cover 5 and the second connecting portion formed at the end portion of the back cover 4 and detachably connected to the first connecting portion 10. And a connecting portion 11.

Next, an example of the fastener tool 13 will be described.
As shown in FIG. 7, the fastener tool 13 includes a fastener member 14 made of metal or synthetic resin, and a retaining ring member 15 made of metal or synthetic resin. The fastener member 14 includes a disk-shaped head portion 14a, a shaft portion 14b that extends from the head portion 14a and can be inserted into the circular holes 12a to 12d, and an annular groove 14c formed in the shaft portion 14b. The distance from the head 14a to the lower end of the annular groove 14c is equal to the total thickness of the superimposed first and second connecting portions 10 and 11.

  The retaining ring member 15 includes a pair of guide pieces 15a and 15b, an engagement hole 15c that engages with the inner peripheral surface of the annular groove 14c through slight elastic deformation of the guide pieces 15a and 15b, and an engagement hole It has a guide slot 15d connected to 15c and an operation part 15e for operating with a finger. FIG. 8 is a cross-sectional view showing a state in which the first and second connecting parts 10 and 11 are fixed in close contact with the fastener tool 13, and the first and second connecting parts 10 and 11 are, for example, four sets of fastener tools 13. Are separably connected.

Next, the spine enlargement member 8 will be described.
As shown in FIG. 1, the spine cover portion of the spine cover enlargement member 8 is substantially the same width as the spine cover 5, and the spine cover enlargement member 8 is made of the same cardboard or synthetic resin sheet material as the cover member 2. Yes.
A third connecting portion 16 that is a third connecting portion 16 that is the same as the first connecting portion 10 and that is formed by a flange portion bent at a right angle inside is formed at one end portion of the back cover expanding member 8 on the front cover side. The third connecting portion 16 is formed with four circular holes 12c corresponding to the four circular holes 12a of the first connecting portion 10.

  At the other end of the back cover enlargement member 8 on the back cover side, a fourth connection portion 17 is formed which is the same as the first connection portion 10 and is a flange portion bent at a right angle to the inside. In addition, four circular holes 12 d corresponding to the four circular holes 12 b of the second connecting portion 11 are formed in the fourth connecting portion 17.

  In order to increase the file object P filed in the binder 1 shown in FIG. 1, when the width of the spine cover is increased, the snap ring members 15 of the four sets of fasteners 13 in the divided connection portion 6 are removed. The first connecting part 10 is separated from the second connecting part 11, the spine cover expanding member 8 is arranged between the first and second connecting parts 10, 11, and four sets of the first and third connecting parts 10, 16 are arranged. The fastener tools 13 are connected so as to be separable, and the second and fourth connecting portions 11 and 17 are connected so as to be separable by four sets of fastener tools 13. As a result, the binder 1A shown in FIG. 2 is obtained.

Next, the binding mechanism 7 will be described.
As shown in FIGS. 2 to 6, the binding mechanism 7 is provided at a portion near the left end of the inner surface of the back cover 4. The binding mechanism 7 is an elongated base plate 20 made of a metal plate having a thickness of about 0.6 to 1. mm, for example, and fixed to the back cover 4 with, for example, four rivets 20a, and a predetermined base plate 20 A pair of upright columns 21 provided at a distance-separated portion, a pair of pressing tools 22 mounted on the pair of columns 21, and a pair of pressing tools 22, respectively, on the pair of columns 21. It is provided with a pair of fastening mechanisms 19 that can be fastened and unfastened in a vertical direction (thickness direction of the file object P) and can be fastened. Each fastening mechanism 19 includes an operation knob 23.

  The column 21 stands vertically from the base plate 20 in a state where the base plate 20 is in a horizontal posture, and the column 21 is formed by connecting a plurality of the same column pieces 24 in a separable manner. However, the lowermost column piece 24 is slightly different from the other column pieces 24. A number of column pieces 24 that are suitable for the thickness of the file object P are connected and used, and a plurality of unused column pieces 24 are unused in a storage portion (not shown) on the inner surface side of the cover member 2. It is accommodated together with a plurality of fasteners 13 and a spine enlargement member 8.

  As shown in FIGS. 9 to 12, the column piece 24 is a molded product made of metal or synthetic resin, and may be formed of, for example, an injection molded product of magnesium alloy. The column piece 24 includes a piece main body portion 25 having a substantially square horizontal cross section, a tapered leg portion 26 having a circular horizontal cross section and gradually decreasing in diameter downward, a connecting hole 27 formed in the piece main body portion 25, and a piece main body portion. The engagement surface 28 is formed on the side surface of the pressing tool 22 on the pressing plate 30 side among the 25 side surfaces. A pair of protrusions 26 a is formed at the lower end of the tapered leg portion 26. The connecting hole 27 is formed as a tapered hole into which the tapered leg portion 26 can be inserted in close contact.

  The connecting hole 27 has a pair of grooves 27a for introducing a pair of protrusions 26a. The pair of protrusions 26a are at positions that are different in phase by 45 degrees in the clockwise direction in a plan view with respect to the pair of grooves 27a. An arc groove 27b is formed from the lower end portion of each groove portion 27a so that the protruding portion 26a can be rotated by 45 degrees clockwise in a plan view in the horizontal direction. Note that the arc groove 27b may be opened to the outside due to the restriction of the structure of the molding die for molding the column piece 24.

  As shown in FIG. 12, the column piece 24 to be added is approached from above the column piece 24, and the tapered leg portion 26 is inserted into the connecting hole 27 of the lower column piece 24, and then the column piece 24 is rotated clockwise. The pair of protrusions 26a are brought into close contact with the inner part of the pair of arc grooves 27b by rotating in the direction by 45 degrees, and the lower surface of the piece body 25 of the column piece 24 to be added is The column piece 24 to be added is brought into close contact with the upper end surface of the column piece 24 so that the column piece 24 to be added can be connected to the lower column piece 24 in a separable manner without rattling.

  The length of the column piece 24 is preferably an appropriate value in the range of 10 to 30 mm, for example, but is not limited to this range. In the case of the metal column piece 24, the size of one side indicating the thickness of the piece main body 25 is preferably about 6 to 10 mm, for example, and in the case of a synthetic resin column piece, the size of the one side is about 8 to 15 mm. It is desirable to make it. However, the thickness of the column piece 24 is not limited to the above value. In addition, the shape of the horizontal cross section of the column piece 24 may be a rectangle or other shapes.

  However, the lowermost column piece 24L fixed to the base plate 20 does not have the taper leg portion 26 and is fixed to the base plate 20 by spot welding or the like. Alternatively, a short screw shaft portion instead of the tapered leg portion 26 is formed in the lowermost column piece 24L, and the screw shaft portion is formed in a screw hole formed in the base plate 20 (or a base plate portion thickened by a reinforcing plate). The lowermost column piece 24L may be fixed by screwing, or may be fixed using screws, pins, or the like by using cut-and-raised pieces formed on the base plate 20.

As shown in FIGS. 9, 13, and 14, the engagement surface 28 of the column piece 24 is, for example, a triangular wave surface with a pitch and peak height of about 0.5 to 1.5 mm, and a vertical cross-sectional shape having a sawtooth shape. It is formed on a triangular wave front.
As shown in FIGS. 2 to 4, 13, and 14, the pressing tool 22 includes a pressing plate 30 for pressing the upper surface of the file object P, and the vertical movement of the pressing tool 22 relative to the column 21. The column 21 has a square frame-shaped peripheral wall portion 32 formed with a standing guide hole 31 through which the column 21 is inserted with a slight gap. A peripheral wall side portion of the peripheral wall portion 32 on the pressing plate 30 side is formed integrally with the pressing plate 30. The lower surface of the pressing plate 30 is a horizontal surface, and the upper surface is formed as an inclined surface, for example. Note that the lower surface of the pressing plate 30 may be formed at a position lower than the lower end of the peripheral wall portion 32 so that a thin file object P can be filed with certainty.

Next, the fastening mechanism 19 will be described.
The fastening mechanism 19 is formed in a peripheral wall portion 32 around the guide hole 31 of the pressing tool 22 and a peripheral wall side portion facing the pressing plate 30 of the pressing tool 22 with the guide hole 31 in the peripheral wall portion 32 interposed therebetween. It has a horizontal screw hole 23b and an operation knob 23 as an operation member having a screw shaft portion that is screwed into the screw hole 23b so as to be able to advance and retreat, and can fasten the column 21 to the peripheral wall portion 32 of the pressing tool 22. . As shown in FIGS. 13 and 14, the inner surface of the guide hole 31 facing the engagement surface 28 of the column 21 is engaged with the engagement surface 28 of the column piece 24 in a close contact manner. A surface 33 is formed. The engaging surface 33 is a triangular wave surface having a sawtooth shape in a vertical cross section and is formed in a triangular wave surface opposite to the engaging surface 28. The engaging surfaces 28 and 33 are formed in a shape that the engaging surface 33 is driven downward by the engaging surface 28 as the engaging surface 28 approaches the engaging surface 33.

The screw shaft portion 23a of the operation knob 23 is screwed into a horizontal screw hole 34 formed in the left wall portion of the peripheral wall portion 32 (the peripheral wall portion facing the pressing plate 30 of the pressing tool 22 across the guide hole 31). The column 21 is configured to be fastened to the peripheral wall portion 32 by pressing the column 21 against the peripheral wall portion 32 toward the pressing plate 30 at the tip of the screw shaft portion 23a. In this fastened state, the pressing tool 22 cannot move in the thickness direction of the file object P with respect to the column 21.
When the file object P is filed or taken out, the operation knob 23 of the fastening mechanism 19 is loosened, the engagement surfaces 28 and 33 are disengaged, and then the height of the pressing tool 22 is adjusted as necessary. The position is changed, and then the file object P is attached and detached. Thereafter, when the file object P is clamped in the pressed state, the operation tool 23 is turned to the fastening side with the left hand and fastened while the pressing tool 22 is pressed downward with the right hand to strongly press the file object P.

As a result, the engagement surfaces 28 and 33 are completely engaged with each other and the pressing tool 22 is locked, so that the file object P is maintained in the pressing state and the pressing state is not loosened. When the engaging surfaces 28 and 33 are engaged by the operation knob 23, the engaging surface 33 is driven downward by the engaging surface 28, so that a stronger pressing state is obtained. Since the forward / backward movement amount of the screw shaft portion 23a when the operation knob 23 is loosened or fastened is about 2.0 mm, the operation knob 23 can be easily operated. Note that the column 21 is configured to have a strength sufficient to maintain the thick file object P in a strongly clamped state and a bending rigidity that does not deform beyond a minute elastic deformation.

  As shown in FIG. 13, a soft rubber plate 30a (for example, a thickness of 3 to 6 mm) is fixed to the lower surface of the pressing plate 30, and the file object P is pressed through the rubber plate 30a. Alternatively, a band made of soft rubber may be attached to the pressing plate 30. However, the engagement surfaces 28 and 33 are not limited to the triangular wave surface, and may be configured by a substantially flat friction surface having a large friction coefficient.

  FIGS. 15 to 17 are cross-sectional views of the main part of the cover member 2 of the binder 1 and 1 </ b> A, and only the short axis 13 a is shown instead of the fastener 13. The same applies to FIGS. 16 to 19. 15 shows a cross section of the main part of the cover member 2 of the binder 1 of FIG. 1, FIG. 16 shows a cross section of the main part of the cover member 2 of the binder 1A of FIG. 2, and FIG. The cross section of the principal part of the cover member of the binder 1B to which the member 8 is added is shown.

Next, the operation and effect of the above binders 1-1B will be described.
While the thickness of the file object P is small, it is used as the binder 1 as shown in FIGS. 1 and 15, and when the thickness of the file object P is increased, the binder of FIGS. 2, 16, and 17 is used. As in 1A and 1B, a spine cover enlargement member 8 is added to the spine cover 5 to increase the width of the spine cover (the spine cover area or the corresponding portion of the spine cover), and a column piece 24 is added to the column 21 of the binding mechanism 7. Since the column 21 can be used in a long state, the file can be filed with a single binding mechanism 19 from the thin file object to the thick file object. It is convenient in terms of carrying around.

Since the binding mechanism 19 employs a column 21 having a structure in which a plurality of column pieces 24 are connected, the height of the column 21 can be adjusted according to an increase in the file object P, and the thickness of the binder 1 can be adjusted. In addition, the manufacturing cost of the column 21 can be reduced. Further, the structure of the column 21 and the pressing tool 22 is simple and there is no portion that is easily damaged, so that the durability and reliability are excellent.
In the state where the spine cover enlargement member 8 is assembled, the spine cover portion (spine cover region) of the cover member 2 can be maintained in a flat shape. Further, even if the spine cover area of the cover member 2 is enlarged, the front cover 3 and the back cover 4 are not affected, so that the function of the cover member 2 can be ensured. The structure of the back cover portion (back cover region) of the cover member 2 is not complicated, and the cover member 2 can be made of cardboard or synthetic resin sheet material, so that the production cost is not so high.

In addition, when the file object that has been filed is removed and a new file object is filed, the back cover enlarging member 8 can be removed to reduce the width of the binder back cover (back cover region). Therefore, the binder can be used repeatedly.
Since the first, third, and fourth connecting portions 10, 16, and 17 are formed of flange portions that are bent at right angles to the inside, the connecting portions can be connected inside the cover member 2. The appearance of 1, 1A, 1B can be maintained well. Since the connecting portion is connected by the fastener tool 13 having a simple structure, connection and separation can be easily performed.

  Since the clamp-type binding mechanism 7 is provided, it is convenient because a file can be filed without forming two holes in the file object P, and a desired document in the file object P can be taken out or added to the binder 1 You can easily do this when you file. In the case of the file object P having a large thickness, the file object P can be strongly clamped and filed by strongly pressing the pressing tool 22 by hand and then fastening the file object P in a compressed state.

  In addition, since the engaging surface 33 is driven downward by the engaging surface 28 when the operation knob 23 is driven to be fastened, the pressing force for pressing the file object can be increased. In the binding mechanism 7, the operation knob 23 is operated to the fastening side so that the engagement surface 28 of the column piece 24 is engaged with the engagement surface 33 of the inner surface of the guide hole 31 in a substantially close contact state. On the other hand, there is no possibility that the pressing tool 22 moves to the loose side (upward), and a pressing state equal to or higher than the pressing state when manually pressed can be maintained over a long period of time, and the reliability is excellent.

Next, an example in which the embodiment is partially changed will be described.
[1] As shown in FIGS. 18 and 19, in the binder 1C, a split connection portion 6A for connecting the middle part in the width direction of the spine cover 5 in a separable manner is formed. 3, a first connecting portion 10 </ b> C formed at the end portion of the first back cover portion 5 </ b> A continuous to 3, and a second connecting portion 11 </ b> C formed at the end portion of the second back cover portion 5 </ b> B continuous to the back cover 4. At least one spine enlarging member 8 capable of enlarging the width of the spine 5 is provided, and the spine enlarging member 8 is disposed between the first and second connecting portions 10C and 11C in a state where the divided connecting portion 6 is separated. The third and fourth connecting portions 16 and 17 at both ends in the width direction of the spine expanding member 8 are configured to be connectable to the first and second connecting portions 10C and 11C by the fastener tool 13, respectively.

  FIG. 19 shows the binder 1D in a state in which the spine cover expanding member 8 is incorporated in the binder of FIG. In the binder 1D, if the widths of the first and second back cover portions 5A and 5B are formed to be equal, the front cover 3 and the first back cover portion 5A, the back cover 4 and the second back cover portion 5B are formed into a plurality of circular shapes. Since the hole and the broken line can be made of the same member that is shared, it is advantageous in manufacturing the cover member 2.

[2] FIG. 20 shows a fastener tool 13A of a modified example. The fastener tool 13 </ b> A includes a set screw and includes a fastener body 40 and a nut member 41. The fastener body 40 has a head 40a and a screw shaft 40b. The nut member 41 has a head portion 41a and a cylindrical portion 41b having a screw hole into which the screw shaft 40b is screwed. The head portion 41a has an operation groove 41c for operation with a coin, a screw driver or the like. Is formed. When connecting the connecting portion of the cover member 2 with the fastener tool 13A, the plurality of connecting portions are clamped between the heads 40a and 41a. Various fastener tools can be used as the fastener tool.

[3] FIGS. 21 and 22 show a modified column piece 24A. In this column piece 24A, a screw shaft leg portion 42 is provided instead of the tapered leg portion 26 in the column piece 24 shown in FIG. 9, and a screw hole 43 into which the screw shaft leg portion 42 is screwed is provided instead of the connecting hole 27. An engagement surface 28A similar to the engagement surface 28 is formed on one side surface of the piece main body 25A. In a state where a plurality of column pieces 24A are connected, all the engaging surfaces 28A are configured to appear on the side surface on the pressing plate 30 side.

[4] FIGS. 23 to 25 show modified examples of the column piece and the pressing tool of the binding mechanism 7. The pressing tool 22A includes a pressing plate 30A, a peripheral wall portion 32A integrally formed with the pressing plate 30A and having a guide hole 47, and a pair of elastic arms 44 and 45 constituting the peripheral wall portion 32A. And an operation lever 46. The pair of elastic arms 44 and 45 are a linear first elastic arm 44 extending leftward from the left end of the pressing plate 30 </ b> A and an L-shaped second elastic arm 45.
The second elastic arm 45 has a linear first arm portion 45a extending leftward from the left end of the pressing plate 30A and a second arm portion 45b extending rearward from the left end of the first arm portion 45a. The guide hole 47 is formed in a hole that allows only the vertical movement of the pressing tool 22A relative to the column 21A.

  Engaging surfaces 28B similar to the engaging surfaces 28 and 28A are formed in a half-width region on a pair of parallel side surfaces of the piece main body portion 25B in the column piece 24B shown in FIG. On the inner surface of the first elastic arm 44 and the inner surface of the first arm portion 45a of the second elastic arm 45, engaging surfaces 48 and 49 that can engage with the engaging surface 28B are formed in a half-width region. When the first elastic arm 44 and the first arm portion 45a are elastically deformed toward the phase approaching side, the engagement surfaces 48 and 49 engage with the engagement surfaces 28B and 28B on both sides of the plurality of column pieces 24B to be locked. When the elastic deformation of the first elastic arm 44 and the first arm portion 45a is released, the engagement surfaces 48 and 49 are released from the engagement surfaces 28B and 28B on both sides, and the pressing tool 30A is attached to the column 21A. Can be moved up and down.

  The operation lever 46 includes a lever portion 46a, a pivot shaft portion 46b protruding rightward from the lever portion 46a, and a cam shaft portion 46c having an oval cross section extending rightward from the pivot shaft portion 46b. The second arm portion 45b is formed with an oval hole 45c through which the pivot shaft portion 46b and the cam shaft portion 46c can pass (see FIG. 25). FIG. 24 shows the first elastic arm by tilting the lever portion 46 to a horizontal position, pushing the second arm portion 45b backward by the pivot shaft portion 46b, and pushing the first elastic arm 44 forward by the cam shaft portion 46c. The state which elastically deformed 44 and the 1st arm part 45a to the phase approach side is shown, In this state, the engagement surfaces 48 and 49 engage with the engagement surfaces 28B and 28B, and maintain a locked state. In addition, the 1st elastic arm 44 and the 1st arm part 45a are equivalent to the surrounding wall side part which 32A of surrounding wall parts mutually oppose.

  In this state, when the operating lever 46 is turned 90 degrees upward (shown by a three-dot chain line in FIG. 25), the cam shaft portion 46c is separated from the first elastic arm 44. Since the elastic deformation of the first arm portion 45a is released and the engagement surfaces 48 and 49 are separated from the engagement surfaces 28B and 28B and the locked state is released, the pressing tool 22A is moved up and down with respect to the column 21A. Can do. During assembly, the column 21A is not inserted into the guide hole 47, and the first elastic arm 44 and the first arm portion 45a are elastically deformed toward each other as shown in FIG. The operation lever 46 can be assembled to the second elastic arm 45 by inserting the pivot shaft portion 46b and the cam shaft portion 46c.

  Since the pressing tool 22A and the operating lever 46 do not require a screw shaft or a screw hole, it is advantageous in manufacturing and manufacturing costs can be reduced. As the mechanism for elastically deforming the first and second elastic arms 44 and 45, various mechanisms (mechanism including a screw mechanism, a wedge mechanism, a cam mechanism, etc.) other than the illustrated one can be employed.

[5] As shown in FIG. 26, the column is one of the lengths suitable for the thickness of the file object among the plurality of types of columns 21a to 21c provided in association with the binder and having different lengths. One column 21a-21c is selected and attached to the base plate 20A in a separable manner. A base piece 50 in which a screw hole 51 is formed is fixed to a portion of the base plate 20A to which a column is attached by welding, screws, or the like. As the plurality of columns 21a to 21c, for example, an integrated column 21a having a length suitable for the binder shown in FIG. 15, an integrated column 21b suitable for the binder shown in FIG. 16, and the state shown in FIG. A column group consisting of one-piece columns 21c suitable for the binder is attached to the two binders.

  Screw shaft portions 52 that are screwed into the screw holes 51 of the base piece 20A are respectively formed at the lower ends of the columns 21a to 21c. In the state where the columns 21a to 21c are fastened to the screw holes 51, the engagement surfaces similar to the engagement surfaces 28 and 28A are formed on the side surfaces of the columns 21a to 21c facing the pressing plate 30 of the pressing tool 22. 28B is formed. A column having a length suitable for the thickness of the file object is attached to the screw hole 51, and the pressing tool 22 is attached as shown in FIG. In the case of these columns 21a to 21c, the number of parts is reduced. Since the columns 21a to 21c can be securely fixed to the base plate 20A, the stability in the clamped state is excellent. 9 may be employed instead of the screw shaft portion 52, and a connection hole similar to the connection hole 27 of FIG.

[6] A portion of the pressing plate 30 of the pressing tool 22 is formed of a spring steel pressing plate capable of exerting a strong elastic force, and when the file object is clamped, the pressing tool 22 is pressed downward with a manual pressing force. Then, the pressing plate may be configured to be maintained in an appropriately elastically deformed state.

[7] It is also possible to integrally form the pair of pressing tools 22 and provide a common pressing tool common to a pair of columns.
Alternatively, at least the width of the column (the length in the length direction of the base plate 20) is enlarged to increase the size of the column 21, and the single large column is mounted on the base plate 20, and one press is applied to the column. A tool may be mounted and the middle part in the length direction of the file object P may be clamped by this one pressing tool.

[8] In the above embodiment, the binder 1 in which the binding mechanism 7 is incorporated in the cover member has been described as an example. However, the binding mechanism 7 of the present invention is in a form in which the cover member 2 is omitted (a form of the binding mechanism 7 alone). Also, file objects can be filed.
[9] The above-described embodiments are merely a few examples of the present invention, and those skilled in the art can implement the invention by adding various modifications to the above-described embodiments without departing from the spirit of the present invention. The present invention includes such various modifications.

Claims (9)

In a binding mechanism for pressing a part of the file object in a state where the file object such as a document is stacked to be in a clamped state,
A base plate, a column that rises vertically from the base plate in a state where the base plate is in a horizontal position, and a pressing tool that is mounted on the column so as to be movable up and down and presses a file object toward the base plate. And a pressing tool having an upright guide hole through which the column is inserted so as to allow the vertical movement of the pressing tool with respect to the column, and the pressing tool cannot be relatively moved in the thickness direction of the file object. And a fastening mechanism that can be fastened and released .
The column and the guide hole are formed in a substantially rectangular shape in a horizontal section,
The fastening mechanism includes a peripheral wall portion around the guide hole of the pressing tool, a horizontal screw hole formed in the peripheral wall portion, and a threadedly reciprocatingly screwed into the screw hole so that the column can be fastened to the peripheral wall portion. A binding mechanism comprising: an operation member having an appropriate screw shaft portion .   The binding mechanism according to claim 1, wherein a pair of the columns spaced apart from each other is provided, and a pair of pressing tools corresponding to the pair of columns is provided.   The binding mechanism according to claim 1, wherein a pair of the columns spaced apart from each other is provided, and a common pressing tool is provided for the pair of columns. The pressing tool has a pressing plate for pressing the file object,
The pressing tool is relative to the column on the outer surface of the column on the pressing plate side of the outer surface of the column and the inner surface of the inner surface of the guide hole facing the outer surface of the column. The binding mechanism according to claim 1, wherein engagement surfaces that are movably engaged are formed respectively. When the engagement surface formed on the outer surface of the column engages with the engagement surface formed on the inner surface of the guide hole, the engagement surface of the inner surface becomes the engagement surface of the outer surface. The binding mechanism according to claim 4, wherein both the engagement surfaces are formed so as to be driven downward by the movement. 6. The binding mechanism according to claim 5, wherein the both engaging surfaces are formed to form a triangular wave surface having a sawtooth-shaped vertical cross section. In a binding mechanism for pressing a part of the file object in a state where the file object such as a document is stacked to be in a clamped state,
A base plate, a column that rises vertically from the base plate in a state where the base plate is in a horizontal position, and a pressing tool that is mounted on the column so as to be movable up and down and presses a file object toward the base plate. And a pressing tool having an upright guide hole through which the column is inserted so as to allow the vertical movement of the pressing tool with respect to the column, and the pressing tool cannot be relatively moved in the thickness direction of the file object. And a fastening mechanism that can be fastened and released.
The column and the guide hole are formed in a substantially rectangular shape in a horizontal section,
The fastening mechanism includes a peripheral wall portion of the guide hole, and a clamp mechanism that tightens the column from both sides of the column by elastically deforming a pair of opposing peripheral wall sides of the peripheral wall portion in the phase approaching direction. A binding mechanism characterized by that. The said column has the some common column piece connected so that isolation | separation was possible, It was comprised so that the length of the said column could be changed by increasing / decreasing the number of column pieces. The binding mechanism described in. The column is separably attached to the base plate by selecting a column having a length suitable for the thickness of the file object from a plurality of types of columns of different lengths provided incidentally to the binder. The binding mechanism according to claim 1 or 7, characterized in that

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