JP3367394B2 - Document binding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document binding device, and more particularly to a document binding device that can be formed of a single molded product without providing a binding plate.

[0002]

2. Description of the Related Art Conventionally, there has been known a binding tool capable of binding a document by inserting binding legs into two standardized punching holes. For example, the actual Kaihei 5-13
Japanese Patent No. 785 discloses a binding device of a type including a long piece-shaped base located on the back surface side of a document and first and second binding legs that are erected from the upper surfaces near both ends of the base. ing. Here, the first binding foot is configured to include a concave groove, while the second binding foot is provided with a shaft portion that can be fitted into the concave groove, and the shaft portion is fitted into the concave groove. By doing so, a closed loop is formed so that documents can be bound.

[0003]

However, in the binding device disclosed in Japanese Utility Model Laid-Open No. 5-13485, since the shaft portion is configured to have a substantially round shaft-like outer shape,
When pushing this into the groove with the fingertip, there is a disadvantage that the fingertip is damaged. In this case, it is possible to prevent the fingertips from being damaged by widening the opening width of the groove and thickening the shaft portion, but in such a configuration, the shaft portion largely protrudes from the upper surface of the document, and the binding is performed. This causes the inconvenience of tilting the entire document when the documents are stacked.

When the mutual engagement between the groove and the shaft portion is released, the operation knob provided at the tip of the shaft portion is pulled in the direction away from the groove, but the base portion of the operation knob is also firmly fixed. Since the structure is fitted in the groove, it is difficult to release the fitted state.

Further, since the bases of the first and second binding feet are each formed in the shape of a round shaft, and the base upper surface which is inside the both ends of the base is set as the standing position, the base region is concerned. Cannot be bent so that it overlaps the base surface. Therefore, when the number of documents to be bound is a small number, the documents cannot be bound in a tightly clamped state, and so-called documents play in a closed loop.

[0006]

SUMMARY OF THE INVENTION The present invention has been devised by paying attention to such an inconvenience, and an object of the invention is that the binding work of documents can be performed without a burden and the binding state can be released without difficulty. Another object of the present invention is to provide a document binding tool capable of stably securing the bound state.

[0007]

In order to achieve the above object, the present invention is directed to a long piece-shaped base, which is connected to one end side of the base and has a recess extending from the tip side to the vicinity of the base. A first binding foot having a groove formed therein, and a second binding foot provided on the other end side of the base and having a shaft portion that can be fitted into the concave groove, and the shaft portion is provided in the concave groove. In the document binding device capable of forming a closed loop by fitting the above, the shaft portion is a plane that is substantially flush with the upper end surface of the side wall portion that forms the groove when fitted in the groove. The configuration is such that it is provided in a shape with a section. According to such a configuration, when the shaft portion is fitted in the groove, it is possible to configure the shaft portion pressing portion by the fingertip as a flat area, and eliminate the inconvenience that the fingertip is hurt when the pressing force is applied. Therefore, it is possible to provide a binding tool having excellent handleability.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An operating knob that can be positioned on the upper end surface side of the side wall portion is continuously provided at the tip of the shaft portion of the binding device, and the side wall is provided between the operating knob and the shaft portion. It is advisable to adopt a configuration in which a thin shaft portion that is not in contact with the portion is interposed. By providing such a thin shaft portion, it is possible to obtain a certain area in which the operation knob can be displaced extremely easily in the direction away from the concave groove, and the force for releasing the fitted state can be reasonably applied to the shaft portion. You can Therefore, on the other hand, mutual dimensions can be set so that the fitting force between the groove and the shaft can be strongly maintained, and it is possible to visually confirm that the shaft is securely fitted in the groove. it can.

Further, the release side clearance of the side wall portion in the tip end side region of the first binding foot may be configured as a guide portion which gradually expands toward the tip end of the first binding foot. With this configuration, when the shaft portion is fitted into the groove, it is possible to align the shaft portion so that a part of the shaft portion enters the guide portion, and then push the shaft portion from the guide portion side along the axial direction. When such a force is applied, the shaft portion can be easily fitted by following the guide portion.

Further, it is preferable that each of the base regions of the first and second binding legs is formed of a thin piece connected to both end edges of the base. By providing such a thin piece, the thin piece can be bent so as to be folded and folded on the base surface. Therefore, even if the number of documents is thin, the documents can be firmly bound and bound. Documents can be held stably.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a binding device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing a usage state of the document binding device. In this figure, the document binding tool 10 is entirely formed of a resin molded product integrally molded. The second binding legs 13 and 14 are provided. Base 11
Has a long piece shape, and the dimension in the longitudinal direction thereof is set to a length that can be positioned between the two standardized punching holes P1 and P1 of the document P.

The first binding leg 13 is shown in FIGS.
As shown in FIG. 5, the thin piece 15 is formed on the base side, and the groove 16 is provided in the region from the tip, that is, the free end side to the vicinity of the base. As clearly shown in FIG. 6, the groove 16 is composed of a bottom portion 16A and a pair of side wall portions 16B and 16B provided upright from the left and right sides of the bottom portion 16A.
Each upper inner surface side of B is provided in a cross-sectional shape which is somewhat close to each other. Further, as shown in FIG. 7, the release side gap between the side wall portions 16B and 16B in the front end side region of the first binding tool 13 is such that the release width W1 at the front end is larger than the release width W2 at the inner portion. The guide portion 18 is provided so that the opening width of the side wall portion 16B gradually increases toward the tip. Further, on the inner surface side of the bottom portion 16A of the groove 16, projections 19 are formed at predetermined intervals.

The second binding leg 14 is shown in FIGS.
As shown in FIG. 2, a shaft portion 21 provided on the base side via a thin piece 20 and an operation knob 24 connected to the tip of the shaft portion 21 via a thin shaft portion 23 are configured. ing. The thin piece 20 is substantially the same as the thin piece 15 of the first binding leg 13, and these thin pieces 15 and 20 can be easily bent at a place where they are connected to the base 11 and can be bent. It is provided with a thickness that allows it to overlap with the upper surface of the base 11 in the closed state.

As clearly shown in FIG. 6, the shaft portion 21 is substantially flush with the upper surface of the concave groove 16, that is, the upper end surface position of the side wall portions 16B and 16B when fitted in the concave groove 16. It is provided in a shape having a flat surface portion 26. The outer peripheral surface of the shaft portion 21 excluding the flat surface portion 26 is provided in a shape approximate to a semi-cylindrical cross section corresponding to the inner shape of the concave groove 16, whereby the shaft portion 21 and the concave groove 16 are formed. Mutual fitting is performed. Here, the plane portion 2
On the surface 27 of the shaft portion 21 which is the opposite side to 6, the concave groove 1
6 is formed with a concave portion 30 which can be fitted with the projection 19, and the mutual fitting of the concave portion 30 and the projection 19 prevents the shaft portion 21 from moving along the extending direction of the concave groove 16. There is.

The thin shaft portion 23 is a side wall portion 16 of the concave groove 16.
It is formed so thin that it does not come into contact with B and 16B. The operation knob 24 that is continuously provided on the distal end side of the thin shaft portion 23.
Has a substantially disk shape in a plan view, and the diameter thereof is the side wall portion 16.
It is provided slightly larger than the width connecting the outer surfaces of B and 16B.

In the above structure, the document binder 10 is
The binding legs 13 and 14 are inserted into the punching holes P1 of the document P in a state where the whole is in a substantially U shape. Then, after this insertion, the shaft portion 21 of the second binding leg 14 is fitted into the concave groove 16. At this time, the shaft portion 21 has a part of the groove 16
The position is adjusted so that it fits within the guide portion 18 of the. In this state, the axial center position of the shaft portion 21 coincides with the substantially central position of the recess 16. Therefore, the remaining portion of the shaft portion 21 can be fitted by sequentially pushing in from the guide portion 18 side. At this time, since the surface that applies the pushing force to the shaft portion 21 is the flat surface portion 26, the flat surface portion 2
Since 6 is the pressure receiving surface by the fingertip, the fingertip does not hurt. When the thickness of the document P is thin, the region where the recess 16 and the shaft portion 21 overlap with each other may be maximized.
It is bent so that 0 overlaps with the surface of the base 11.

When releasing the fitting, the operation knob 24
May be picked up with a fingertip and separated from the groove 16. When this force is applied, the thin shaft portion 23 is provided so as to be continuous with the operation knob 24. Therefore, the region up to the thin shaft portion 23 is easily lifted from the groove 16 so that the groove 1
You can escape from 6. Therefore, the separating force is applied to the shaft portion 21.
The whole can be easily covered, and the subsequent disengagement can be smoothly and reasonably performed.

[0019]

As described above, according to the present invention,
Since the flat portion is provided on the shaft portion that constitutes the second binding foot and the pushing force is applied to the flat portion to fit the shaft portion into the groove, when the shaft portion is fitted into the groove. The effect that the fingertip is received on a flat surface when the pressing force is applied, and the inconvenience that the fingertip is hurt by the application of the pressing force can be eliminated.

Further, since the operation knob is provided at the tip of the shaft portion through the thin shaft portion which is not in contact with the side wall portion of the groove, the operation knob is added so as to be separated from the groove to release the fitting. The applied force can be easily applied to the entire shaft portion, and the fitting can be easily released to add and remove documents. Moreover, according to this, the fitting force between the concave groove and the shaft portion can be strongly maintained, and the bound document can be tightened in a stable state.

Further, in the structure in which the guide portion is provided in the tip end side region of the groove, this can be used as an initial guide portion when the shaft portion is fitted into the groove, and the shaft portion can be used with respect to the groove. It is possible to determine the fitting position of the without shifting. Therefore, after the positioning, the entire shaft portion can be fitted very easily only by sequentially applying the pushing force from the guide portion side toward the tip end side of the shaft portion.

Further, since the base regions of the first and second binding legs are made of thin pieces, the thin pieces can be bent so as to be folded on the base surface, and in particular,
Even if the number of documents is thin, the documents can be firmly bound, and the bound documents can be stably held.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a document binding device according to an embodiment.

FIG. 2 is a perspective view of the state in which the binding legs are opened as seen from the front side.

FIG. 3 is a front view of the state in which the binding legs are opened.

FIG. 4 is a rear view of the state in which the binding legs are opened.

FIG. 5 is a side view showing a state in which the binding legs are opened.

FIG. 6 is an enlarged sectional view taken along the line AA of FIG.

FIG. 7 is a rear view showing the tip side of the first binding leg.

[Explanation of symbols]

10 Document binding tools 11 base 13 First binding foot 14 Second binding foot 15 Thin pieces 16 groove 18 Guide 20 thin pieces 21 Shaft 23 Thin shaft 24 operation 26 Plane

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Flat 5-13785 (JP, U) Real deployment Sho 47-26618 (JP, U) Real deployment Sho 52-50829 (JP, U) Real deployment Sho 50- 50823 (JP, U) Actual public Sho 45-2805 (JP, Y1) Actual public 36-21233 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B42F 13/06

Claims (4)

(57) [Claims] 1. A long piece-shaped base, a first binding foot that is continuously provided on one end side of the base and has a groove formed in a region from the tip side to the vicinity of the base, and the base. A second binding foot provided on the other end side and provided with a shaft portion that can be fitted into the concave groove, and a document binding device capable of forming a closed loop by fitting the shaft portion into the concave groove. In the above, the shaft portion is provided in a shape including a flat surface portion that is substantially flush with the upper end surface of the side wall portion that forms the concave groove while being fitted in the concave groove. Document binding tool. 2. An operating knob that can be located on the upper end surface of the side wall is continuously provided at the tip of the shaft, and the operating knob and the shaft are not in contact with the side wall. The document binding device according to claim 1, wherein a thin shaft portion is interposed. 3. The release side gap of the side wall portion in the tip end side region of the first binding foot is configured as a guide portion that gradually expands toward the tip end of the first binding foot. Item 1 or 2 document binding tool. 4. The document binding device according to claim 1, wherein each of the base regions of the first and second binding feet is formed of a thin piece continuous with both end edges of the base. .