JPH0971079A - Sheet binder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold sheets without being damaged and make the whole mentioned item in a page visible by a method wherein the corners of sheets are pinched between a compressing means and a base by elastically pressing the compressing means provided at the corner of the base. SOLUTION: In order to bind sheets, a cover member 5 is pushed down under the condition that a finger is applied to its inclined face 55. Thus, the cover member 5 lowers as being slid laterally, resulting in releasing the engagement between an engaging projection 54 and a hole 17. As a result, the cover member 5 and the free end side of a lever member 2 are raised by a spring member 3, resulting in also separating a compressing means 4 from a base 1 and hanging the side face part 42 of the compressing means down by its own weight In this case, by inserting sheets between the base 1 and the compressing means 4, the compressing means 4 is turned upside down. Under the condition that the left ends and top ends of the sheets are brought in line with a projecting piece 15 and a guide projecting piece 20, the sheets are held by the compressing means 4. Furthermore, by engaging the engaging projection 54 of the cover member 5 with the hole 17 of a projecting piece 14, the free end of the cover member 5 is kept under its lowered state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding device for binding one to many sheets, and more particularly, to a sheet which holds a corner of a sheet to be bound by elastically pressing it. Related to binding devices.

[0002]

2. Description of the Related Art When relatively small sheets such as memos and slips are collectively stored, a memo holder or a memo binder provided with a pressing member on one side of a hard mount so as to constantly press the mount with a spring is used. Widely used. With such a holder or binder, as soon as you receive or create a memo or slip, you can open the pressing member in sequence and stack it on the mount or already-stitched memos or slips. It is convenient because it can be easily bound, and memos and slips can be removed simply by opening the pressing member. In this way, the idea of pressing and binding sheets is not limited to small sheets such as memos and slips, but also relatively large materials such as B5 and A4, and large sheets such as report paper or copy paper. It is also used as a binder. That is, the back cover of the cover consisting of the front cover, the back cover and the spine cover is provided with a pressing means for pressing the left side of the sheet to be bound.
This pressing means is released when the lever whose one end is rotatably supported and the free end side of this lever are lifted,
It is composed of a pressing member that is in the form of a band that is elastically pressed to the back cover side when the free end side of the lever is rotated so that the lever becomes horizontal, and that presses the left side of the paper sheet to be bound. .

Such holders and binders are not only easy to bind and remove the sheets as described above, but also include pipes, binding cords, binding strips, etc. for binding to the sheets. Since there is no need to make holes for passing through, it does not damage the paper sheet.

[0004]

The above-mentioned holders and binders are preferable in terms of not damaging the paper sheet, but since one side of the paper sheet is pressed over a certain length,
When binding a large number of paper sheets, it becomes difficult to turn them.
In addition, when binding a plurality of types of memos and slips, the sizes are different depending on the type, the user, and the size of the description contents, and tend to be uneven. Therefore, if you bind all of them together regardless of size, when you see these memos or slips later, especially when you see small memos or slips that are bound under large memos or slips, they are bound on top of them. You may not be able to see it unless you bend the memo or slip strongly. However, if such a bending force becomes stronger than the pressing force of the pressing member, the memo or slip cannot be pressed and the memo or slip may come off from the pressing member.

Further, in the case of a relatively large paper sheet such as B5 or A4, the elasticity of the paper is larger than that of a memo or a slip,
A strong pressing force is required for the holding means. However, if a spring having a large spring elasticity is used to obtain a strong pressing force, a strong force is required to rotate the lever, which makes it difficult to handle. Furthermore, when a large number of paper sheets are bound, the binding margin portion becomes larger as it goes backward, and the edge of the open portion is covered with the binding margin and cannot be seen.

Therefore, the object of the present invention is to reliably hold a plurality of paper sheets without damaging them, and when turning, to see all the matters written on the paper surface, and even when a large number of paper sheets are the last. An object of the present invention is to provide a paper sheet binding tool that can be easily turned up and that does not come off during a turning operation and that can easily perform a paper sheet binding operation.

Another object of the present invention is to provide a paper sheet binder having a simple structure, a small number of parts, and easy assembly.

[0008]

In order to achieve the above-mentioned object, a paper binding device of the present invention has a rectangular base and one end rotatably supported at a corner of the base. A lever member extending parallel to one edge of the lever member, and one end fixed to the lever member for elastically biasing the free end of the lever member upward, and the other end of the lever member at the one edge side of the base. A spring member extending on the base on the side surface opposite to the side surface and attached to the other end of this spring member, and elastically moved toward the base by the elastic force of the spring member when the free end of the lever member is pressed downward. Pressing means for holding the corners of the paper sheet between itself and the base,
The lever member has locking means for locking the lever member so as to maintain the state when the free end of the lever member is pressed downward, and the pressing means has a substantially right-angled triangle whose upper surface faces the corner portion of the paper sheet. The other end of the spring member is rotatably inserted into the holding means from the side portion on one side of the pair of substantially right angles, and the free end of the lever member is moved upward. When rotated, it is supported so that the other side of the pair of substantially right angles is located below due to its own weight.

The pressing means of the paper sheet binder according to the present invention is formed by hanging from the upper surface to the side portion on one side, and the groove portion into which the spring member is rotatably inserted without being removed, and this groove portion. Has a hole formed at the tip on the upper surface side, and the other end of the spring member inserted into this hole is bent into a substantially hook shape.

The lever member of the paper sheet binder of the present invention includes:
An inclined surface is provided so that when the free end side of the lever member is lowered, the lever member is swung in the direction of releasing the engagement with the locking means.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention shown in the drawings will be described below. This paper binding device is made of a synthetic resin and has a rectangular base on which a paper to be bound is placed. 1, a lever member 2 made of a metal plate whose one end is rotatably supported on the base 1, and a metal spring member 3 for elastically biasing the free end of the lever member 2 upward. And a pressing means 4 made of synthetic resin, which is attached to one end of the metal spring member 3 and holds a corner of a paper sheet between the lever 1 and the base 1 when the free end of the lever member 2 is pressed downward, and a lever. It is mainly composed of a cover member 5 which is also made of synthetic resin and which is fitted so as to cover the member 2.

The base 1 has an upper end 11, a lower end 12, and a left end 1.
It has a rectangular shape composed of three sides, 3 and a right end (not shown), a support part for the lever member 2 is provided on the left end 13 side, and a right part thereof is a flat part for placing paper sheets such as slips and memos. Has become. On the left end 13 of the base 1, a pair of projecting pieces 14 and 15 are integrally provided upright so as to be spaced from each other in the left-right direction and extend from the upper end 11 toward the lower end 12. The length of the gap between the protrusions 14 and 15 is at least longer than the width of the cover member 5. Protrusion 15 binds 0
It is a guide protrusion that guides the left edge of the paper leaf. A shaft hole 16 is formed on the upper end 11 side of each of the projecting pieces 14 and 15 so as to be located on the same axis. Protrusion 14
Is formed relatively high from the upper end 11 side to the substantially middle portion, but is formed so as to be positioned low from the substantially middle portion to the lower end 12. A rectangular hole 1 is formed in the middle part
7 are formed. The protruding piece 15 is formed at the same height as the lower portion of the protruding piece 14 except for the portion where the shaft hole 16 is formed. The cut portion 18 is formed so that the boundary between the portion where the shaft hole 16 is formed and the lower portion is substantially the same as the surface of the base 1. A rim 19 for reinforcement is integrally erected on a portion from the upper end 11 between the pair of projecting pieces 14 and 15. The upper end 11 is integrally provided with a guide protrusion 20 that guides the upper edge of the sheet to be bound. The upper end 11 extends in the right end direction from the portion where the shaft hole 16 of the protrusion 15 of the upper end 11 is formed. A reinforcing thick portion 21 is formed between the guide protruding piece 20 and the guide protruding piece 20, and an arcuate recess 22 is formed in the center of the upper surface of the thick portion 21. Protrusion 14
When the cover member 5 descends inside the cover, the inclined guide 23 is inclined downward at a position where the cover member 5 engages with the side portion thereof.
Are formed.

The lever member 2 has a rectangular upper surface portion 25,
The upper surface portion 21 has side surface portions 26 that are bent substantially at right angles from both ends in the longitudinal direction, and the longitudinal length of the upper surface portion 21 is shorter than the upper and lower end lengths of the base 1. Axial holes 27 that are aligned with the axial holes 17 are formed at one ends of the side surface portions 26, respectively. As shown in detail in FIG.
A cutout portion 28 is formed in the side surface portion 26 on the fifth side in the vicinity of the portion where the shaft hole 27 is formed. On the other hand, the side surface portion 26 on the side of the protruding piece 14
Is provided with a locking portion 29 formed by further bending the tip end portion inward.

The metal spring member 3 is made of elastic metal wire, and has a central coil portion 31 and this coil portion 31.
A linear locking end 32 that is locked to the locking portion 29 of the lever member 2 and the other end of the coil portion 31 that holds the pressing means 4 rotatably. The end portion 33, and the coil portion 31 allows the locking end portion 32 and the holding end portion 33.
And are elastically biased in opposite directions. The locking end portion 32 and the holding end portion 33 are configured to have a predetermined angle when there is no load. The axial length of the coil portion 31 is slightly shorter than the length between the side surface portions 26 of the lever member 2. The holding end portion 33 is bent outward from the substantially middle portion thereof so as to face the direction of the locking end portion 32 at a substantially right angle, and a bent portion 34 is formed. The tip portion 35 of the bent portion 34 is further bent in the direction of the coil portion 31 again at a substantially right angle.

The holding means 4 is made of a hard synthetic resin such as polycarbonate, and has an upper surface portion 41 in the shape of a substantially right triangle, and three side surface portions 42, 43, 44 each having a substantially trapezoidal shape. However, its lower surface is open. The side surface portion 42 is located on the guide projecting piece 20 side of the base 1, the side surface portion 43 is located on the projecting piece 14 side, and the side surface portions 42 and 4 are provided.
It is located so that 3 and 3 intersect at a right angle. Side part 44
Are positioned so that they are the inclined sides of the right triangle. As shown in FIG. 6, from the upper surface portion 41 to the side surface portion 43, an insertion groove 45 into which the bent portion 34 of the metal spring member 3 is inserted.
Are formed. The position of the insertion groove 45 provided on the side surface portion 43 side is set to a position where the side surface portion 42 side hangs down by its own weight when lifted by the metal spring member 3, as shown in FIG. A U-shaped wall portion 46 is integrally formed on the lower portion of the upper surface portion 41 so as to form the outer contour of the insertion groove 45. A hole 47 into which the tip end portion 35 of the metal spring member 3 is inserted is formed in a portion of the wall portion 46 on the side surface portion 44 side. At the upper end of the opposing wall portion 46, that is, at the entrance of the insertion groove 45, the tapered projection 4 is formed so as to slightly narrow the insertion groove 45 while inclining downward.
8 is formed, and the bent portion 34 of the metal spring member 3 is configured to be held so as not to be easily separated after being press-fitted.

The cover member 5 is made of synthetic resin, and is integrally formed with an upper plate portion 51 that covers the upper side of the lever member 2 and a peripheral surface portion 52 that extends downward from the outer periphery of the upper plate portion 51. ing. The shaft hole 1 is formed in the peripheral surface portion 52 at one end of the cover member 5.
A shaft hole 53, which is aligned with 6, is drilled. Also, the protrusion 1
A locking projection 54 that locks in the hole 17 is formed on the peripheral surface portion 52 located on the fourth side. The other end of the cover member 5 is formed with an inclined surface 55 that inclines obliquely downward from the upper plate portion 51 to the peripheral surface portion 52 located on the protruding piece 14 side. A cutout portion 56 is formed in a portion of the peripheral surface portion 52 located on the side of the projecting piece 15 in the vicinity of the shaft hole 53. Reference numeral 61 denotes a support shaft which is inserted from the shaft hole 16 of the projecting piece 14 into the coil portion 31 of the metal spring member 3 and the shaft hole 27 of the lever member 2.
The other end of is fixed by a washer 62.

Next, the assembly of this paper binding tool will be described. First, the holding means 4 is held on the holding end 33 side of the metal spring member 3. This is the bent portion 3 of the holding end 33.
4 from the direction shown in FIG.
And position it as shown in FIG. Next, FIG.
As shown in, the tip portion 35 is rotated so that the bent portion 34 is positioned along the insertion groove 45. As a result, the boundary portion between the bent portion 34 and the tip portion 35 is located on the wall portion 46 of the hole 47 portion, and this portion serves as a fulcrum, and the bent portion 3
By pushing down the end portion side of 4 which is opposite to the tip end portion 35, the bent portion 34 is inserted into the insertion groove 45 so as to push open the tapered protrusion 48. The force to push down is
Since the lever principle utilizing the fulcrum described above is used, a light force is sufficient, and the metal spring member 3 can be used without using a jig or the like.
The holding means 4 can be held on the holding end 33 side of the. In this way, after holding the pressing means 4 on the metal spring member 3, the metal spring member 3 is locked while the locking end portion 32 of the metal spring member 3 is locked to the locking portion 29 of the lever member 2. The coil portion 31 is inserted into both side surface portions 26 so as to be aligned with the shaft hole 27 of the lever member 2, and the shaft hole 53 of the cover member 5 is inserted.
Are aligned with the shaft hole 27. Next, these pieces 1
The shaft hole 16 of these protrusions 14 and 15 is inserted between
And the support shaft 61 from the shaft hole 16 of the projecting piece 14 to the coil portion 31 of the metal spring member 3 and the shaft hole 27 of the lever member 2.
Insert At this time, the bent portion 34 of the metal spring member 3
Can be projected from the cutout portion 28 of the lever member 2 to the right side of the projecting piece 15 through the cutout portion 56 of the cover member 5. Finally, the other end of the support shaft 61 is fixed by the washer 62, and the assembly is completed.

When binding a paper sheet 6 (see FIG. 2) such as a slip to this paper sheet binder, put a finger on the inclined surface 55 of the cover member 5 and push it downward. By putting a finger on the inclined surface 55, the cover member 5 can be moved down while being laterally displaced, and the engagement between the engagement projection 54 and the hole 17 can be released. In this case, if the inclined guide 23 is provided as in this embodiment, the peripheral surface portion 5 near the inclined surface 55 of the lever member 2 is provided.
The lower end of 2 engages with the slant guide 23, and the entire lever member 2 can be surely shifted toward the projecting piece 15 side and can be lowered. The locking between the locking projection 54 and the hole 17 can be released. As a result, the free end sides of the cover member 5 and the lever member 2 are raised by the metal spring member 3, and the holding means 4 is also separated from the base 1. When the pressing means 4 is separated from the base 1, the side surface portion 42 side hangs down due to its own weight. Therefore, when the paper sheet 6 is inserted between the base 1 and the pressing means 4, the top and bottom of the pressing means 4 are reversed. There is no need for the trouble of installing the pressing means 4 in the correct position. Further, even if the holding means 4 tries to rotate, the tip end portion 35 of the metal spring member 3 comes into contact with the upper surface portion 41 of the holding means 4 or the back surface of the side surface portion 44, and the rotation is blocked.

Here, the left end and the upper end of the paper sheet 6 are attached to the projecting piece 1.
5 and the guide protrusion 20 and then the free end of the cover member 5 is lowered to lower the holding means 4, the holding means 4 is first positioned so as to hold the corner of the paper sheet 6, and Hold down the corner of leaf 6. Further, when the free end of the cover member 5 is lowered against the elastic force of the metal spring member 3, the cover member 5 is lowered while being elastically pushed toward the protruding piece 14 side, and the locking projection 54 of the cover member 5 is released. The free end of the cover member 5 is held in a lowered state by engaging with the hole 7 of the projecting piece 14. As a result, the pressing means 4 elastically presses against the base 1,
The corners of the paper sheet 6 are firmly sandwiched between the pressing means 4 and the base 1. If the holding means 4 holds down the corners of the paper sheet 6 which are normally blank, the holding means 4 will not cover the items to be written on the paper sheet 6. Further, since the cover member 5 is elastically pushed toward the projecting piece 14 by the metal spring member 3, the locking projection 54 does not separate from the hole 7 of the projecting piece 14. Further, since the pressing means 4 abuts on a narrow portion of the paper sheet 6 such as a corner portion, even if the paper sheet 6 is bent from this portion, the repulsive force of the paper sheet 6 generated by the folding is weak,
Even if a large number of sheets 6 are opened so as to be bent from their corners, the overall repulsive force does not increase. Therefore, even if a large number of paper sheets 6 are clamped and they are turned over, they will not be disengaged from between the pressing means member 4 and the base 1, and can be reliably clamped.

In the above-described embodiment, the metal lever member 2 is covered with the synthetic resin cover member 5. However, the cover member 5 is made of hard synthetic resin having high strength, and the metal lever member 2 is omitted. You may. Further, the lever member 2 is provided at the left end of the base 1, and the pressing means 4 is positioned at the right side of the lever member 2. However, when binding sheets to the right, the lever member 2 is placed at the right end of the base 1. The holding means 4 may be provided on the left side of the lever member 2.

Further, in this embodiment, the base 1 is integrally provided, but the base is set to a portion where the pressing means 4 abuts, and this is near the spine of a file consisting of a front cover and a back cover. You may make it the binder form stuck on the back cover of.

[0022]

As described above, the rectangular base, the lever member having one end rotatably supported by the corner of the base, and the lever member extending parallel to one edge of the base, and the lever One end is fixed to the lever member in order to elastically bias the free end of the member upward, and the other end extends on the side base that faces the one side of the base of the lever member. Member and the other end of this spring member, when the free end of the lever member is pressed downward, the elastic force of the spring member elastically presses in the direction of the base, and the corner of the paper sheet between the base and the base. And a locking means for locking the lever member so as to maintain the state when the free end of the lever member is pressed downward, the pressing means has an upper surface at the corner of the paper sheet. The other end of the spring member has a substantially right-angled triangular shape, and has a substantially right angle. When the free end of the lever member is pivotally inserted upward from the side portion on one side of the pair of sides and the free end of the lever member is pivoted upward, the other side of the pair of sides forming a substantially right angle by its own weight. According to the paper sheet binder according to claim 1, which is supported so that the side thereof is located below, the pressing means is elastically pressed against the base, and the corners of the paper sheet are connected to the pressing means and the base. The paper is firmly pinched between the sheets, and the pressing means abuts on a narrow portion of the paper sheet at the corners. The total repulsive force does not become large even if they are opened by bending them from their corners. Therefore, even if a large number of paper sheets are clamped and they are turned over, they will not be disengaged from between the pressing means and the base, and can be reliably clamped. Furthermore, since the corners of the paper sheet are usually blank portions and this portion is pressed by the holding means, the entire description on the paper sheet can be viewed without being disturbed by the holding means. When the pressing means is positioned away from the base, the other side of the pair of sides forming a substantially right angle hangs down due to its own weight, so when inserting the paper sheet between the base and the pressing means,
It is not necessary to reverse the top and bottom of the holding means or to re-install the holding means in the correct position.

Further, the pressing means of the paper sheet binder according to claim 1 is formed by being hung from the upper surface to the side portion on one side.
The spring member has a groove portion into which the spring member can be rotatably inserted without being detached, and a hole formed in a tip portion on the upper surface side of the groove portion. According to the paper sheet binder of claim 2, which is bent in a hook shape, the tip of the spring member is inserted into the hole of the groove and then the end of the spring member following this tip is pressed into the groove. The pressing means can be rotatably attached to the end portion of the spring member by a simple process.

Further, when the lever member of the paper sheet binder according to claim 1 is lowered on the free end side of the lever member, the lever member is swung in a direction to release the engagement with the locking means. According to the paper sheet binder of claim 3, wherein the inclined surface is provided,
By pressing the inclined surface with a finger and pressing it downward, the lever member can be lowered by laterally shifting its free end side, and the locking can be easily released from the locking means for locking the lever member. When the pressing is released, the free end side of the lever member can be immediately raised.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an exploded view of an embodiment of a paper sheet binder of the present invention.

FIG. 2 is a partial perspective view showing this embodiment with a lever member lowered.

FIG. 3 is a partial perspective view showing this embodiment with a lever member raised.

FIG. 4 is a plan view showing a pivoting portion of a lever member and a holding means portion.

FIG. 5 is a diagram for explaining the state of the pressing means by opening and closing the lever member.

FIG. 6 is an explanatory view showing an initial state when the metal spring member is inserted into the holding means with a part thereof cut away.

FIG. 7 is an explanatory view showing a state in which the tip end portion of the metal spring member is inserted into the holding means.

FIG. 8 is an explanatory view showing a state in which the metal spring member is rotated from the state of FIG.

9 is an explanatory view showing a state where the bent portion of the metal spring member is inserted into the holding means from the state of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Lever member 3 Metal spring member 4 Holding means 5 Cover member 14,15 Projecting piece 17 Hole 29 Locking part 31 Coil part 32 Locking end part 33 Holding end part 34 Bending part 35 Tip part 42,43,44 Side part 45 Insertion groove 46 Wall part 47 Hole 48 Tapered protrusion 54 Locking protrusion 55 Sloping surface 61 Spindle

Claims (3)

[Claims] 1. A rectangular base, a lever member having one end rotatably supported by a corner of the base and extending parallel to one edge of the base, and a free end of the lever member. One end is fixed to the lever member in order to elastically bias the above,
The other end is a spring member extending on the side of the lever on the side opposite to the one side of the base of the lever, and the other end of the spring is attached to the free end of the lever member. When the end is pressed downward, the elastic force of the spring member elastically presses in the direction of the base to hold the corner of the paper sheet between the base and the free end of the lever member. A holding member for holding the lever member so as to hold the state when the member is pressed downward, and the holding member has a substantially right-angled triangular shape whose upper surface faces the corner portion of the paper sheet and has a thickness. The other end of the spring member is rotatably inserted into the holding means from a side portion on one side of a pair of substantially right angles, and the free end of the lever member is rotated upward. When moved, the other side of the pair of sides forming a substantially right angle due to its own weight There paper binding device, characterized in that it is supported so as to be positioned below. 2. The holding means is formed by hanging from the upper surface to the side portion on the side of the one side, and the groove portion into which the spring member is rotatably inserted without being detached, and the upper surface of the groove portion. The paper sheet binder according to claim 1, further comprising: a hole formed at a side end portion, and the other end of the spring member inserted into the hole is bent into a substantially hook shape. 3. The free end of the lever member is provided with an inclined surface so as to swing the lever member in a direction of releasing the engagement with the locking means when the lever member is lowered. The paper sheet binder according to claim 1.