JP4905583B2 - Manufacturing method and notebooks for twin rings and intermediate materials - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a twin ring, a method for manufacturing an intermediate material thereof, and notebooks, and more specifically, a twin ring inserted into a large number of binding holes formed on one end of a sheet, a method for manufacturing the intermediate material, and notebooks. About.

  Among known notebooks, a type of notebook that is bound using a ring-shaped binding tool made of a wire is known. This binding tool has a spiral ring formed by spirally forming a wire rod made of metal or the like along the axial direction, and the spiral ring is inserted into a large number of binding holes formed on one end side of the paper. Notebooks bound in one book can be produced.

  However, since the binding tool composed of a spiral ring has a structure extending in a spiral shape, when left and right sheets are spread apart, the left and right sheets are relatively displaced in the vertical direction. There is an inconvenience. In addition, in order to prevent the spiral ring from coming off from the paper, it is necessary that the end of the spiral ring be opposite to the direction of the spiral. There is also the inconvenience that it becomes difficult. Therefore, recently, it has become mainstream to employ the twin ring 50 shown in FIG. 10 as a binding tool.

  The twin ring 50 is configured by using a single wire (see FIG. 11) as in the conventional spiral ring. However, the twin ring 50 is different in length or width along the binding side edge PE of the paper P. The ring ends 51 and 52 are positioned alternately and at regular intervals, so that each ring portion 53 is substantially orthogonal to the binding side edge PE of the paper P (in FIG. 10, a substantially horizontal direction along the left-right direction). Therefore, even if the paper P is spread apart, the left and right papers P, P are prevented from shifting in the vertical direction.

  However, as shown in FIG. 11, such a twin ring 50 uses an intermediate material L in which a single wire is formed in a zigzag in the same plane, and is processed into an annular shape for convenience of manufacturing. Since it uses what was cut | disconnected according to the required length using the long intermediate | middle raw material L before carrying out, as the final shape, the edge part 54 and the end E (refer FIG. 10) of a wire rod are the twin rings 50. It will appear as it is at both ends. The end portions 54 and 54 and the ends E and E protrude so as to face the upper end side and the lower end side of the notebooks N. Therefore, another note, notebook, pen case, mobile phone It is desirable to take measures that can avoid the possibility of other objects such as straps, clothes, and printed matter getting caught.

  Further, the wire used for the twin ring 50 is usually a metal wire whose outer periphery is coated with a resin or the like. However, the end E exposes the metal by the above-described cutting, and the exposed end surface of the wire is over time. It may cause rust. Therefore, as described above, in the shape in which the end E protrudes from the upper end side and the lower end side of the notebooks N, rust easily moves to other documents.

  Further, depending on how the user handles the paper P, when the paper P is turned, the circumference of the binding hole 55 of the paper P portion in contact with the edge E is broken or the binding hole 55 of the paper P gets over the edge E. Also invites.

[Object of invention]
An object of the present invention is to provide a twin ring, a method for manufacturing the intermediate material, and notebooks that can make it difficult to catch other objects on the end of the wire.

  Another object of the present invention is to provide a twin ring that can prevent partial tearing around the binding hole of the sheet and prevent the binding hole from coming out of the end of the wire.

In order to achieve the above-mentioned object, the present invention is a twin ring of a notebook comprising a plurality of substantially annular ring parts inserted into a predetermined binding hole while being constituted by a wire.
An end portion of the wire is bent inward, and does not protrude toward the upper end side and lower end side of the notebooks, and the hook preventing shape is located on or near the substantially circular locus of the ring portion. It has a configuration that is provided in. By setting it as such a structure, a possibility that another thing may be caught on the edge of a wire can be prevented effectively.

Further, the present invention is a method for manufacturing an intermediate material of a twin ring of a notebook or the like comprising a plurality of substantially annular ring portions inserted into a predetermined binding hole while being constituted by a wire.
Using a single wire, straight portions that extend in the short width direction and take positions substantially parallel to each other, and first and second crossing the straight portions that are located at both axial ends of these straight portions After forming the zigzag-shaped intermediate material composed of the bent portion, the both sides in the width direction of the intermediate material are curved around the virtual straight line position,
The intermediate material is preformed in advance in a substantially C shape and cut according to the required length,
When both ends of the wire generated by the cutting are bent inward so as to face the nearest inner wire , and applied to a notebook in a state where the final molding is performed so as to form an annular ring portion in a side view, A method is employed in which the notebook is provided in a hook-preventing shape located on or near the substantially circular locus of the ring portion without protruding toward the upper and lower ends of the notebooks .

Furthermore, the present invention provides a claim 1 Symbol mounting of twin-ring, in the notebook class constructed by inserting the number of binding holes provided in the paper, the paper is the front cover, between the back cover and these cover It is composed of a large number of writing papers that are positioned.

  In the present specification, “twin ring” is used for a plurality of wires that are substantially parallel to each other, for example, two wires that pass through one binding hole. It is done. The “notebooks” are used as a wide concept including notebooks, notebooks, sketch books, books, photo books, calendars, and the like that can be bound using a twin ring.

The schematic perspective view of the notebooks with which the twin ring which concerns on this invention was applied. The principal part expansion perspective view of FIG. The principal part enlarged plan view of FIG. The schematic perspective view which shows the intermediate material before forming a twin ring. The principal part enlarged plan view which shows the modification of the said Example. The principal part enlarged plan view which shows the other modification of the said Example. The principal part enlarged plan view which shows the further another modification of the said Example. The principal part enlarged plan view which shows the other modification of the said Example. The principal part enlarged plan view which shows the further another modification of the said Example. The principal part enlarged plan view which shows the conventional twin ring. The schematic perspective view of the intermediate material before forming the conventional twin ring.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic perspective view of a notebook according to an embodiment of the present invention, and FIG. 2 is a schematic perspective view in which a part thereof is enlarged. Moreover, the principal part enlarged plan view is shown by FIG. In these drawings, the notebooks N are composed of a sheet P having a large number of binding holes 10 and a twin ring 11 inserted into the binding holes 10. The paper P is composed of a front cover P1 and a back cover P2, and a large number of writing papers P3 located between the covers P1 and P2.

  As shown in FIG. 4, the twin ring 11 is formed by forming an intermediate material L made of a single wire having a resin coating on the outer periphery of a metal wire, and then forming the intermediate material L around the virtual straight line C position. It can be formed by bending both sides in the width direction in a direction indicated by arrows in FIG. In the state of the intermediate material L, the twin ring 11 extends in the short width direction and takes a position substantially parallel to each other, and the straight portions 15 are positioned on both ends in the axial direction of the straight portions 15. When the twin ring 11 is formed by bending the first and second bent portions 16 and 17 intersecting with each other, the linear portion 15 forms the ring portion 20, while the first and second The ring ends 21 and 22 are formed by the bent portions 16 and 17.

  The first and second bent portions 16 and 17 are alternately formed at a predetermined pitch along the straight line C. The intermediate material L is provided in a zigzag shape located in the same plane, and the length or width of the first bent portion 16 is longer than the length or width of the second bent portion 17. When the twin ring 11 is completed, the ring ends 21 and 22 have a substantially annular outer shape in a side view without interfering with each other.

  Further, the formation from the intermediate material L to the twin ring 11 is performed as follows. That is, the intermediate material L having a zigzag shape is preliminarily formed in a substantially C shape, and then cut according to a required length. The both ends 25, 25 of the wire generated by this cutting are bent so as to face the nearest inner wire, and then finally formed so as to finally have an annular shape in a side view. 4 shows a state in which the twin ring 11 according to the present embodiment is unfolded as it is, it should be understood that this is shown for convenience in order to make the drawing easy to see.

  In the state completed as the twin ring 11, the both end portions 25, 25 are positioned on the circumferential locus of the ring portion 20, and become a catch prevention shape that does not protrude to the upper end side and the lower end side of the notebooks N. In this embodiment, the ends E, E of the both end portions 25, 25 are provided so as to abut against the innermost wire rod, that is, the ring portion 20, as shown in FIG. A slight gap may be formed between the two.

  Therefore, according to such an embodiment, since both ends E and E of the twin ring 11 do not protrude toward the upper end side and the lower end side of the notebooks N, it is possible to reliably catch the other objects due to the protrusion as in the prior art. Can be prevented.

  In addition, this invention is not limited to the said Example. For example, as shown in FIG. 5, the end 25 is shaped to be gently inclined so that the end E abuts against the wire forming the nearest inner ring part 20 or slightly with respect to the ring part 20. It can also form so that a clearance gap may arise. According to this, in addition to obtaining the same effect as in the above embodiment, in particular, since the end portion 25 is in a curved state in plan view, there is a risk of damage to the other object even if the other object contacts. Can also be prevented.

  Further, as shown in FIG. 6, the end portion 25 may be bent inward with respect to the outermost wire constituting the ring portion 20 so that the two are exactly overlapped. In this example, the end portion 25 is provided at a position that coincides with the annular locus of the ring portion 20, that is, the circumferential locus, but is configured to overlap two in the direction orthogonal to the paper surface in FIG. A configuration in which the portion 25 follows a circumferential locus can also be adopted. Even with such a configuration, it is possible to obtain the same effects as in the above-described embodiment. At this time, depending on the length of the end portion 25, the number of overlaps may increase.

  Furthermore, as shown in FIG. 7, a configuration in which the portion corresponding to the end portion 25 described above is excised can be employed. In this configuration, the end portion of the wire is formed by the tip portion of the ring portion 20, and the end E1 is provided in a state of being substantially in contact with the intersection portion C between the ring portion 20 on the right side in the drawing facing and adjacent to the ring end 22. It is done. Further, in this configuration, the end E1 is formed on the curved surface, or the end E1 is integrated with a resin film (not shown) covering the wire by melting the resin mass at the end E1, Furthermore, it is also possible to adopt a configuration such as forming a curved surface at the end E1. Also according to such an embodiment, it is possible to effectively prevent catching with other objects. Moreover, the structure which covers a suitable cap etc. around the edge E1 and the edge part of the ring part 20 is also considered.

  Further, as shown in FIG. 8, the end E is located between or adjacent to the ring end 22 of the ring portion 20 on the right side in the drawing and the ring 21 end on the nearest inner side (lower side in the drawing). Such a configuration can also prevent the above-described catching.

  Further, as shown in FIG. 9, for example, two of the above-described binding holes 10 are formed in a continuous size, and the number of wires forming the ring portion 20 that passes through the binding holes 10 is increased. It can also be made. In this example, although not particularly limited, the four holes are formed so as to pass therethrough, but the size of the binding hole 10 and the number of wires passing therethrough can be further changed.

  According to the embodiment, since the end or the end of the wire is provided in a catching prevention shape, it is possible to prevent other objects from being caught on the end of the wire.

  In addition, since the configuration in which the end of the wire rod is located at the approximate circumferential locus of the ring portion, the circumferential locus, or the vicinity thereof, a configuration that protrudes toward the upper end side and the lower end side of the notebooks can be eliminated. Further, it is possible to effectively prevent the tearing of the sheet due to the sheet turning operation. In addition, it is possible to effectively prevent the end of the wire from coming off from the uppermost and lowermost binding holes during paper turning.

  Furthermore, when it is configured to be bent so that two ends of the wire are overlapped, even if it is a thin wire, it is possible to thicken the end, even if other objects are caught, The risk of scratching other objects can be avoided.

  In addition, the configuration in which the end of the wire is bent toward the wire forming the nearest inner ring portion, or the configuration in which the end of the wire is substantially in contact with the inner ring portion, or the end of the wire is In the configuration located between or near the ring end of the adjacent ring part and the inner ring end, the end position of the wire is opposite to that of the conventional twin ring. Can be prevented.

  Furthermore, when a cover made of a cap or the like is provided at the end of the wire, the end surface of the wire is also covered with the cover, and rust prevention measures can be taken. The possibility of transferring to a document can also be eliminated.

  In addition, in the configuration in which the end of the wire is formed in a smooth circular arc surface, it is possible to prevent the other object from being damaged even if it is intentionally brought into contact with the other object.

10 Binding Hole 11 Twin Ring 20 Ring Part 21 Ring End 22 Ring End 25 End C Crossing E End E1 End N Notes

Claims (3)

In a twin ring of notebooks comprising a plurality of substantially annular ring parts inserted into a predetermined binding hole while being constituted by a wire rod,
An end portion of the wire is bent inward, and does not protrude toward the upper end side and lower end side of the notebooks, and the hook preventing shape is located on or near the substantially circular locus of the ring portion. A twin ring characterized by being provided in. In the manufacturing method of the intermediate material of the twin ring of the notebooks comprising a plurality of substantially annular ring portions inserted into a predetermined binding hole, which is constituted by a wire rod,
Using a single wire, straight portions that extend in the short width direction and take positions substantially parallel to each other, and first and second crossing the straight portions that are located at both axial ends of these straight portions After forming the zigzag-shaped intermediate material composed of the bent portion, the both sides in the width direction of the intermediate material are curved around the virtual straight line position,
The intermediate material is preformed in advance in a substantially C shape and cut according to the required length,
When both ends of the wire generated by the cutting are bent inward so as to face the nearest inner wire , and applied to a notebook in a state where the final molding is performed so as to form an annular ring portion in a side view, An intermediate material for a twin ring, characterized in that it is provided on a substantially circular locus of the ring portion or a substantially circumferential locus of the ring portion without protruding toward the upper end side and the lower end side of the notebooks, or a catch prevention shape located in the vicinity thereof . Production method. The claim 1 Symbol mounting of twin-ring, in the notebook class constructed by inserting the number of binding holes provided in the paper, the paper is the front cover, a large number of sheets of the writing that is located between the back cover and these cover Notebooks characterized by being composed of paper.

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