JP2002205479A - File and rivet for binder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for easily fitting and removing a binder 2 as well as a file using the mechanism. SOLUTION: A groove 39 for a driver is provided in the head part 31 of a rivet 3, and a threaded groove 34 is provided in a thread part 32, wherein the rivet 3 fitted with press can be pulled out by the driver.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a file for binding various papers and leaves, and a rivet for stopping a binding device in the file.

[0002]

2. Description of the Related Art Files for binding leaves include a two-hole type, a multi-hole type, a Z-type, and the like (a two-hole type is shown in FIG. 1). In these files, the binding device that binds the leaves is made of a material different from that of the file main body. Therefore, there has been a demand for a technique of separating and discarding the files and removing them for the purpose of reuse.

[0003] Here, if only the ease of removing the binding device is required, screwing is desirable. However, there is a problem of loosening due to use with screwing. Furthermore, screwing has the disadvantage of high manufacturing costs. On the other hand, tacking lowers manufacturing costs and eliminates the problem of loosening. However, there is a drawback that it is difficult to separate the file from the file body, and thus the binding device cannot be reused (difficult).

[0004] Note that there is the following prior art that makes it possible to remove a binding device of a file. JP-A-11-62926, JP-A-11-62927, and JP-A-2000-170725.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention
It is an object of the present invention to provide a mechanism that allows easy attachment of a binding tool and easy removal of a binding tool, and a file using the mechanism.

[0006]

Means for Solving the Problems, Their Effects, and Forms Thereof (1) In order to solve the above-mentioned problems, the present invention provides a file body 1 and a binding device 2 having a fixing hole 4.
A press-fitting portion 5 having a press-fitting groove 51 at a position where the binding device 2 is fixed in the file main body 1, and the rivet 3 includes a screw portion 32 and a head portion 31. The head portion 31 is provided with a driver groove 39, and the screw portion 32 has a spiral screw groove 33 helical from the tip end toward the head portion 31.
The screw width W2 of the screw portion 32 is slightly larger than the press-fit width W5 of the press-fit groove 51 provided in the press-fit portion 5. The press-fit groove 51 of the file body 1 and the fixing hole 4 of the binding device 2 are The rivet 3 is press-fitted into the press-fitting groove 51, and the binding device 2 is fixed to the file main body 1. ・ The rivet 3 is rotated by using a screwdriver, and along the screw groove 33 (thread 34). The rivet 3 can be removed from the press-fitting groove 51.

[0007] The present invention is characterized in that the tip of the rivet 3 is a screw portion 32, and the screw portion 32 is provided with a helical screw groove 33 and a screw thread 34. The groove 39 is provided. Then, the rivet 3 is press-fitted into the press-fitting groove 51 having a press-fitting width W5 slightly smaller than the screw width W2, and the binding device 2 is fixed to the file main body 1. As described above, the present invention facilitates the fixing of the binding device 2 to the file main body 1 and reduces the manufacturing cost. On the other hand, when removing the binding device 2 from the file main body 1, a driver is inserted into a driver groove 39 provided in the head 31 of the rivet 3, and this is rotated,
The rivet 3 is easily removed from the press-fit groove 51 along the screw groove 33. Thus, the removal of the binding device 2 becomes easy.

Structure and Embodiment The “binding device 2” in the present invention refers to a portion for fixing a document or a leaf to be stored in a file. FIG. 1 shows a “two-hole ring type” binding device 2. As other binding devices, a “multi-hole ring type” or a Z-shaped binding device used for a so-called “Z-shaped file” can be used.

The position where the press-fit portion 5 is provided may be freely determined depending on the use of the file. In FIG. 1, a press-fit portion 5 is provided on the back side of the spine 12 of the file body 1. Others
If it is a Z-type file, it can be implemented in a form provided on the back side of the file cover 13.

A “fixing hole 4” provided in the binding device 2 is a hole for fixing the binding device 2 to the file main body 1 with a rivet 3. In the binding device 2 shown in FIG. Provide one after another. The position and number of the fixing holes 4 may be appropriately determined in consideration of the characteristics of the binding device 2.

[0011] "The screw width W2 of the rivet 3 is slightly larger than the press-fit width W5."
The binding device 2 can be fixed by forcibly press-fitting the binding device 51. The extent to which the screw width W2 is increased is appropriately determined by the material of the rivet 3 (and is also affected by the material of the press-fit groove 51). If the rivet 3 is made of a material such as plastic that is severely worn, the screw width W2 is increased in consideration of the degree of wear. On the other hand, the rivet 3 is made of metal,
When the press-fitting groove 51 is also made of metal, it is not necessary to consider wear. Therefore, the screw width W2 and the press-fitting width W5 are substantially the same or the screw width W2 is increased by several mm. Specifically, when the rivet 3 is made of metal and the press-fit groove 51 is made of plastic, the screw width W2
Is preferably larger than the press-fit width W5 by about 0.1 to 0.5 mm.

The “driver groove 39” provided in the head 31 of the rivet 3 is not particularly limited, and can be implemented in a form that one or both of them can be used.

The direction of “rotating the rivet 3” is
This means that the rivet 3 is rotated along the screw groove 33 in a direction in which the rivet 3 comes out of the press-fit groove 51. The direction of the rotation is determined by the shape of the screw groove 33 and the screw thread 34 provided spirally.

(2) The embodiment of the present invention can be implemented in a form in which the press-fitting portion 5 having the press-fitting groove 51 is provided directly on the file main body 1. In addition, a hole is provided at the position where the press-fitting portion 5 is provided in the file main body 1 (this hole is referred to as a file hole 15), and a screw having the press-fitting portion 5 from the front side to the back side of the file main body 1 in the file hole 15. In addition, the press-fitting portion 5 provided on the file main body 1 is further provided with the press-fitting portion 5 provided on the plate 6 arranged on the front of the file main body 1 through the file hole 15 provided on the file main body 1. The present invention can be embodied in a form formed to protrude.

Here, an embodiment in which the press-fitting portion 5 is formed by the plate 6 is shown in FIG. As shown in the figure, the press-fitting portion 5 provided on the plate 6 is inserted into the file hole 15 provided in the file body 1. Then, the fixing hole 4 of the binding device 2 is aligned with the press-fitting portion 5 (the press-fitting groove 51), and the rivet 3 is press-fitted therein. The details will be described later.

“Plate 6” means the file body 1
And has a function of writing the name of a file and inserting a paper sheet describing the name of the file.

In this embodiment, the press-fit portion 5 is provided on the back side of the plate 6, and further, the file body 1 is provided with a file hole 15 for projecting the press-fit portion 5 to the back side of the file. The rivet 3 can fix not only the binding device 2 but also the plate 6. This facilitates manufacture compared to the embodiment in which the binding device 2 and the plate 6 are separately fixed. In addition, not only the binding device 2 but also the plate 6 can be separated.

In order to press-fit the rivet 3 and fix the binding device 2, the screw portion 32 of the rivet 3 needs a certain height. On the other hand, the plate 6 has a certain thickness, and by using this thickness, a sufficient depth of the press-fit groove 51 for the screw portion 32 can be secured. Thereby, the file body 1
Even if it is thin, a sufficient depth of the press-fit groove 51 can be secured, and the binding device 2 can be fixed more strongly. In addition, since the press-fit groove 51 can be set large, the number of threads 34 (thread portions 32) can be increased (increased), and the resistance to the pulling force of the rivet 3 can be increased.

(3) A desirable form of the rivet 3 used in the present invention is a rivet 3 comprising a head portion 31 and a screw portion 32. The head portion 31 is provided with a driver groove 39, The screw portion 32 has a spiral thread groove 33 from the tip toward the head 31.A tip face of a face forming the thread groove 33 is a tip face.
35, the surface on the head side as the head surface 36, the angle between the vertical surface 37 with the screw portion 32 and the tip surface 35 is the tip angle θ1, and the angle between the vertical surface and the head surface 36 is the head. Angle θ2
The tip angle θ1 is larger than the head angle θ2.

The rivet 3 used in the present invention can be embodied in a form in which a screw groove 39 and a screw thread 34 are provided in a screw portion 32 in a head portion 31 and a screw portion 32 is provided in a screw portion 32. However, the cross section of the normal screw portion 32 is an isosceles triangle, and the tip angle θ1 and the head angle θ2 shown in FIG. Therefore, in the rivet 3 according to the present invention, the tip angle θ1 is made larger than the head angle θ2. As a result, the rivet 3 is easily pressed into the press-fitting groove 51, while increasing resistance to pulling out.

Here, the “tip angle θ 1” refers to an angle formed between a vertical surface 37 with the screw portion 32 and the tip surface 35 as shown in FIG. 2, and the “tip surface 35” Among the constituent surfaces, it refers to a surface that is narrowed down toward the leading end of the rivet 3. The “head angle θ2” refers to the vertical surface 37 and the head surface 3 described above.
The "head surface 36" refers to the surface of the screw groove 33 that is narrowed down toward the head of the rivet 3. The vertical surface 37 is a surface of the screw portion 32 that is perpendicular to the direction from the head 31 to the distal end.

The values of the shapes of the screw groove 33 and the screw thread 34, the tip angle θ1, the head angle θ2, and the like are appropriately determined in consideration of the material, the difficulty in pulling out the rivet 3 when pressed, and the like. Then, from the viewpoint of clarifying the effect that “the resistance to pulling-out increases while the press-fitting groove 51 is easily press-fitted”, the tip angle θ1 is preferably larger than the head angle θ2 by 30 ° or more. It is even better if the shape is as large as about °. In addition, from the viewpoint of facilitating press-fitting, the tip angle θ
1 is preferably in the range of 45 ° to 75 °, and more preferably in the range of 50 ° to 75 °.

The head angle θ2 can be set in the range of -15 ° to 30 °, and from the viewpoint of increasing resistance to pulling out, it is desirable that θ2 = -15 ° to 0 °. In consideration of easy manufacturing, θ2 = 0 ° is suitable. On the other hand, considering the strength of the screw portion 32 and the ease of manufacture, θ2 =
A range of 5 ° to 20 ° is desirable, and about 15 ° is suitable.

The head 31 of the rivet 3
Protrudes inside the file. Therefore, it is not desirable that the head 31 is too large. Therefore, the head height H1 of the head 31 is desirably about 1.0 to 4.0 mm. Also,
The cross-sectional shape of the head 31 can also be implemented in a semicircular or thin plate shape so that the inside of the file can be made as smooth as possible.

The tip of the rivet 3 shown in FIG. 2 is flat. However, the tip may be sharp. If the tip is an acute angle, it is possible to pierce the bottom of the press-fitting groove 51, and the binding device 2 can be more securely fixed to the file body 1. On the other hand, as shown in FIG. 2, when the tip is flat, the height of the rivet 3 (rivet height H3) can be made as small as possible. In the embodiment shown in FIG. 2 where the tip is flat, it is desirable that the tip width W1 of the rivet 3 is smaller than the press-fit width W5 in order to smoothly press the rivet 3 into the press-fit groove 51.

The screw width W 2 of the screw portion 32 is determined by a screw thread
34 means the width of the part. Here, the width (screw width W2) of all the threads 34 does not need to be the same. For example, the width of the thread 34 near the tip is slightly smaller, and the width of the thread 34 near the middle is larger. If the width of one screw thread 34 is larger than the press-fitting width W5, the rivet 3 can be prevented from being pulled out. From the viewpoint of more securely preventing the rivet 3 from being pulled out, it is desirable that at least the two threads 34 be larger than the press-fit width W5.

[0027]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram in which a two-hole ring type binding device 2 is fixed to the inside of a file main body 1 using a rivet 3 according to the present invention. FIG. 2 shows a cross section of the rivet 3 and the press-fit groove 51 in the embodiment in which the press-fit portion 5 is formed using the plate 6.

(Overall Configuration) As shown in FIG. 1, in the present invention, a binding device 2 is fixed to a file main body 1 with rivets 3.
The binding device 2 is a two-hole ring-type binding device 2, and has fixing holes 4 for rivets 3 at both ends. The file is provided with two file holes 15 at the back of the spine 12 at the same interval as the interval of the fixing holes 4 described above.

The plate 6 is arranged on the front side of the spine 12 of the file body 1. On the back side of this plate 6 (surface in contact with the file main body 1), two cylindrical press-fitting portions 5 are provided.
The interval between the press-fitting portions 5 is the same as the interval between the file holes 15. Inside the press-fitting portion 5, a press-fit groove 51 smaller than the screw width W2 of the rivet 3 by about 0.3 mm is provided. (Specifically, screw width W2 is 3.8 mm, press-fit width W5 is 3.5
mm. In this embodiment, the press-fit portion 5 is circular. Therefore, the shape of the file hole 15 is the same circle so that the press-fit portion 5 is fitted into the file hole 15. The file main body 1 has a spine 12 at the center thereof, a cover 13 at both ends thereof, and a small groove 14 between the spine 12 and both ends 13 to be bendable.

(Structure of Rivet 3 and Press-Fit Portion 5) The cross-sectional structure of the rivet 3 and press-fit portion 5 is shown in FIG. In the figure, in addition to the rivet 3, the press-fitting portion 5 provided on the plate 6 is fitted into the file hole 15 provided on the file body 1.
The state in which the fixing hole 4 of the binding device 2 is overlaid thereon is shown.

As shown in the figure, the rivet 3 is constituted by a head portion 31 and a screw portion 32. The head 31 is provided with a plus groove for a driver. The head of the screw part 32 is
A helical screw groove 33 that is turned clockwise toward 31 is provided. Screw part
The tip of 32 is a flat surface, and its width is a tip width W1. In this embodiment, the tip width W1 is 3.4 mm, the press-fit width W5 is 3.5 mm, and the tip face 35 is smaller than the press-fit width W5 to facilitate press-fitting. On the other hand, the screw width which is the width of the screw thread 34 provided in the screw portion 32
W2 is set to 3.8 mm, which is larger than the press-fit width W5.

The tip angle θ1 formed by the tip surface 35 and the vertical surface 37 described above is changed to the head angle θ2 formed by the vertical surface 37 and the head surface 35.
Make it bigger. This is because the head angle θ2 is reduced (the surface is set up in the pulling direction) so that the rivet 3 is hardly pulled out. In this embodiment, the tip angle θ1
Is 60 °, the head angle θ2 is 15 °, and θ1 is 45 ° larger than θ2.

It is not necessary to provide grooves corresponding to the screw grooves 33 and the screw threads 34 on the inner wall of the press-fit groove 51 provided in the press-fit portion 5. However, it is also possible to implement a mode in which a groove is provided on the inner wall of the press-fitting groove 51 so as to correspond to the fixing means of the binding device 2 using a normal screw.

(Fixing of the binding device 2) The fixing means of the binding device 2 will be described. First, the press-fitting portion 5 provided in the plate 6 is inserted into the file hole 15 provided in the file body 1.
Fit into The fixing hole 4 of the binding device 2 is positioned (aligned) so as to overlap the press-fit portion 5. Then, the rivet 3 is pressed into the press-fit groove 51 with the fixing hole 4 and the press-fit groove 51 overlapping. As a means for press-fitting, a hammer or the like is used to drive in momentarily.

(Release of Binding Device 2) Means for releasing (detaching) the binding device 2 from the file body 1 using a driver will be described. -Insert the tip of the screwdriver into the screwdriver groove 39 provided in the head 31 of the rivet 3. The screw portion 32 of the rivet 3 used in this embodiment is a head portion 31
It is clockwise as viewed from above. Then, the person who removes the binding device 2 rotates the driver to the left. The rivet 3 is removed from the press-fit groove 51 to the outside along the screw groove 33. This is performed for the rivets 3 at both ends of the binding device 2 and the binding device 2 is removed.

[0036]

According to the present invention, since the rivet 3 is press-fitted to fix the binding device 2, the manufacturing is quick and easy. On the other hand, since the rivet 3 can be removed using a screwdriver, the binding device 2 can be easily removed. Thereby, the binding device 2 can be reused. Further, when the binding device 2 is made of metal or the like and the binding device 2 is discarded separately, the binding device 2 and the file main body 1 can be easily separated and discarded. Further, the rivet 3 having the tip angle θ1 larger than the head angle θ2 makes it possible to provide the rivet 3 which is easy to press-fit and hard to come off.

[Brief description of the drawings]

FIG. 1 is an overall view of an embodiment of the present invention.

FIG. 2 is a sectional view of a rivet and a press-fitting portion.

[Explanation of symbols]

 1 File Body 15 File Hole 2 Binding Tool 3 Rivet 4 Fixing Hole 5 Press-Fit Part 51 Press-Fit Groove 6 Plate W1 Tip Width W2 Screw Width W5 Press-Fit Width θ1 Tip Angle θ2 Head Angle

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroshi Nakano 1-11-2 Nojinbashi, Chuo-ku, Osaka F-term in Lihit Lab Co., Ltd. (Reference) 2C017 UD11 3J036 AA01 BA02 BB10 CA05

Claims (3)

[Claims] 1. A file body 1; a binding device 2 having a fixing hole 4; and a rivet 3. The file body 1 is provided with a press-fit portion 5 having a press-fit groove 51 at a position where the binding device 2 is fixed. The rivet 3 is composed of a screw portion 32 and a head portion 31, the head portion 31 is provided with a driver groove 39, and the screw portion 32 has a spiral screw from the tip to the head portion 31. Groove 33
The screw width W2 of the screw portion 32 is slightly larger than the press-fit width W5 of the press-fit groove 51 provided in the press-fit portion 5. The press-fit groove 51 of the file body 1 and the fixing hole 4 of the binding device 2 are Aligning, press-fitting the rivet 3 into the press-fitting groove 51, and fixing the binding device 2 to the file body 1. rotating the rivet 3 using a screwdriver, and riveting from the press-fitting groove 51 along the screw groove 33; 3. A file characterized by the above 2. The file according to claim 1, wherein the press-fitting section 5 provided in the file main body 1 comprises
The press-fit portion 5 provided on the plate 6 arranged in the table
It is formed so as to protrude from a file hole 15 provided in the file main body 1. 3. A rivet 3 comprising a head portion 31 and a screw portion 32. The head portion 31 is provided with a groove 39 for a driver. It has a spiral screw groove 33, and of the surfaces forming the screw groove 33, the front surface is the front surface
35, the surface on the head side as the head surface 36, the angle between the vertical surface 37 with the screw portion 32 and the distal end surface 35 is the distal angle θ1, and the angle between the vertical surface 37 and the head surface 36 is The head angle is θ2, and the tip angle θ1 is larger than the head angle θ2.