JP6303666B2 - Ring notebook, ring notebook manufacturing method - Google Patents

Description

  The present invention relates to a ring notebook in which a plurality of sheets are bound by a ring.

  Conventionally, various ring notes are known in which a plurality of sheets having a plurality of binding holes are bound by a ring. Conventional rings were generally made by deforming a metal wire by bending, etc., but when touching such a ring, there was a sense of incongruity, and it was used to eliminate this problem. A ring notebook including a ring made of a soft material such as a synthetic resin that undergoes temporary elastic deformation when touched by a person's hand has been developed (see, for example, Patent Document 1 below).

  This ring notebook is made by first punching a sheet material made of a synthetic resin having a constant thickness, and a plurality of horizontal strips inserted through the binding holes, and a vertical strip formed integrally with these horizontal strips. And forming a ring forming member. Then, after passing the horizontal band-shaped portions of the ring forming member through the binding holes, the through-end portions of the plurality of horizontal band-shaped portions are wound up to the vertical band-shaped portion side while being held by a jig, and the through-ends of the respective horizontal band-shaped portions are It is made by joining the parts to the vertical strips by welding.

  In such a case, when the penetrating end of each horizontal belt portion is joined to the vertical belt portion by welding, the penetrating end portion of each horizontal belt portion is positioned with respect to the location where the vertical belt portion is to be joined. There is a problem that a deviation occurs and an appropriate ring cannot be formed. Therefore, in the prior art, it is necessary to firmly set the position of the jig and fix the jig in order to join the penetrating end of each horizontal belt portion to a desired portion of the vertical belt portion.

Japanese Patent No. 5374721

  An object of the present invention is to provide a ring notebook capable of forming a preferred closed ring by a simple method, and a preferred method for manufacturing the ring notebook.

  The present invention employs the following configuration in order to solve the above-described problems. That is, the ring notebook according to the present invention is formed by binding a plurality of sheets having binding holes with a synthetic resin ring, and the rings are respectively inserted into the binding holes. And a base for mutually connecting the base ends of the ring main bodies and holding the distal end sides of the ring main bodies to maintain the ring main bodies in a closed ring shape, and the ring main bodies bind sheets. An annular portion and a tip connection portion welded to the base are provided, and a positioning projection is provided on one of the tip connection portion and the base, and the positioning projection is provided when welded to the other. A positioning recess for positioning the tip connecting portion of the ring main body and the base in association with the protrusion is provided.

  Here, the “paper” may be in the form of a sheet that can be bound as a ring notebook, and includes paper and plastic. In addition, the paper can be used for writing or pasting.

  In addition, the “annular” is not necessarily a smooth circular shape, but is a concept that includes a part that is partly raised.

  As the “welding”, in addition to thermal welding using nichrome wire or the like, ultrasonic welding or high-frequency welding may be considered.

  The ring is made of a ring forming member including a ring body corresponding part for forming the ring body and a base corresponding part for forming the base, and the ring body corresponding part The annular portion corresponding region and the distal end connecting portion corresponding region continuously provided on the distal end side of the annular portion corresponding region, and forcibly bending and deforming the annular portion corresponding region By welding the connection portion corresponding region to the base corresponding portion, the annular portion is formed by the annular portion corresponding region, and the welding surface of the tip connection portion corresponding region and the base corresponding portion that are welded to each other It is preferable that at least one of the welding surfaces is provided with a welding promoting element that preferentially melts when welding and promotes welding between the welding surfaces.

  The ring main body corresponding part and the base corresponding part are integrally molded by a synthetic resin, and the welding promoting element is integrally formed on the welding surface. .

  The welding promoting element is preferably arranged in the vicinity of the positioning protrusion and / or positioning recess on the welding surface.

  As a method of manufacturing the ring notebook described above, a ring body corresponding portion having an annular portion corresponding region corresponding to the annular portion and a tip connecting portion corresponding region corresponding to the tip connecting portion, and a base corresponding to the base Are formed integrally by injection molding, and a plurality of ring body corresponding parts of the ring forming member are respectively inserted into a plurality of binding holes of the paper, and each of these ring body corresponding parts Of the ring main body corresponding portion is welded to the base corresponding portion, and the portion other than the main portion of the base corresponding portion and the ring main body corresponding portion welded to the base corresponding portion are welded. A portion other than the main portion of the tip connection portion corresponding region is separated, and the tip connection portion of the base and the ring body is formed by the main portion, and the phosphorus That so as to form an annular portion of the annular ring body for binding the sheets by the annular end corresponding region of the body corresponding portion is preferred.

  Since the present invention is configured as described above, a preferred closed ring can be formed by a simple method.

1 is an overall view of a ring notebook showing an embodiment of the present invention. The expansion perspective view which expands and shows the principal part of the embodiment. The front view which expands and shows the principal part of the embodiment. The enlarged bottom view which expands and shows the bottom face side of the embodiment. The figure which shows the state which brought the ring shown by the XX cross section of FIG. 3, and all the sheets to one side. FIG. 4 is an enlarged end view taken along line YY in FIG. 3. Explanatory drawing which shows the ring formation member which forms the ring of the embodiment. The top view which expands and shows the ring formation member of the embodiment. ZZ sectional drawing of FIG. Explanatory drawing which shows the manufacturing method of the ring notebook of the embodiment. Explanatory drawing which shows the manufacturing method of the ring notebook of the embodiment. Explanatory drawing which shows the manufacturing method of the ring notebook of the embodiment. The top view which expands and shows the ring formation member concerning the modification of this invention. The top view which expands and shows the ring formation member concerning the other modification of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 5, the ring notebook N according to the present embodiment binds the cover sheets 1 and 2 and the middle sheet 3, which are a plurality of sheets having the binding holes 11, 21, and 31, with the ring 4. It will be. Specifically, the ring notebook N includes a front cover 1 and a back cover 2 made of a synthetic resin sheet or cardboard, and a plurality of writing notes arranged between the front cover 1 and the back cover 2. The front cover 1, the back cover 2, and the inner cover 3 are formed by using a plurality of binding holes 11, 21, and 31 formed at the binding source of the inner cover 3 and the front cover 1, the back cover 2, and the intermediate cover 3. It is comprised from the ring 4 which binds. The binding holes 11, 21, and 31 are normal rectangular shapes, and a plurality of binding holes 11, 21, and 31 are provided at a predetermined pitch on the binding source side of the front cover 1, back cover 2, and middle paper 3.

  1 to 6, the ring 4 is made of a soft resin, for example, a synthetic resin such as polypropylene, and a plurality of ring main bodies 5 inserted through the binding holes 11, 21, and 31, respectively. The base ends of the ring bodies 5 are connected to each other, and the bases 6 are provided to hold the front ends of the ring bodies 5 and maintain the ring bodies 5 in a closed ring shape.

  As shown in FIGS. 1 to 6, each ring main body 5 is positioned on one side edge 6 a side of the base 6, and an annular portion 51 that binds the front cover 1, back cover 2, and inner cover 3, and the base 6. And a tip connecting portion 52 welded to the head. The ring main body 5 is soft when it can be elastically deformed temporarily when the user touches the annular portion 51, but when the external force is released, the ring body 5 can self-return to the original curved shape. Made of material. That is, the ring body 5 has a fixed form that maintains a predetermined ring shape unless an external force is applied depending on the balance of the material, shape, and thickness, and after being temporarily crushed in the thickness direction during elastic deformation, It has a resilience that returns to its original shape.

  As shown in FIGS. 1 to 6, each of the annular portions 51 includes chamfered portions 57 at both side edges 56 on the outer surface 55 side, and as shown in FIG. The shape gradually becomes thinner toward the edge 56. Further, the annular portion 51 is formed continuously from a flat band-like portion 53 that rises from one side edge 61a of the joint portion 61 of the base 6 to be described later, and the distal end connecting portion 52 that is continuously formed and curved at the tip of the flat belt-like portion 53. And a curved belt-like portion 54 that extends to. The flat belt-like portion 53 is for aligning the binding edges 12, 22, and 32 of the front cover 1, back cover 2, and inner cover 3 and the corresponding anti-binding edges. A length dimension corresponding to the total thickness dimension of the front cover 1, the back cover 2, and the middle cover 3 is provided. The curved belt-like portion 54 is for guiding the front cover 1 and the inner paper 3 to be opened and closed, and is partially arc-shaped.

  As shown in FIGS. 2 to 5, each tip connection portion 52 is provided continuously to the tip of the annular portion 51 of the ring body 5 and is welded to the joint portion 61 of the base 6. . A positioning projection 58 is provided on the welding surface of the tip connection portion 52 to the base 6, and the positioning projection 58 is engaged with a positioning recess 63 provided on the base 6 to be described later. The positioning protrusions 58 are, for example, cylindrical.

  As shown in FIGS. 1 to 5, the base 6 includes joint portions 61 to which the tip connection portions 52 are welded and non-joint portions 62 other than the joint portions 61 alternately in the longitudinal direction. Yes, it is flat. As shown in FIG. 5, the base 6 of this embodiment is configured such that one side edge 62a of the non-joining portion 62 is displaced in a direction away from the annular portion 51 with respect to the one side edge 61a of the joining portion 61, as shown in FIG. A part of the joining part 61 and the front end connecting part 52 is configured to be able to enter the binding holes 21, 11, 31 of the back cover 2, the front cover 1, and a part of the middle sheet 3, which are sheets. More specifically, the base 6 is positioned between the inner cover 3 and the back cover 2, and the intermediate cover 3 and the base 6 can be in contact with each other, and the back cover 2 and the front end can be in contact with each other. The connecting portion 52 is arranged so as to be in contact with each other, and at least a part of the joint portion 61 and the tip connecting portion 52 can enter the binding hole 21 of the back cover 2. In addition, the width dimension of the joint part 61 of the base 6 and the tip connection part 52 of the ring body 5 is set to be substantially the same as the width dimension of the annular part 51. Further, the base 6 of the present embodiment is provided with a positioning recess 63 for positioning the tip connection portion 52 of the ring body 5 and the base 6 by engaging with the positioning projection 58 when being welded. It has been. The positioning recess 63 has a shape with which the positioning protrusion 58 can engage, for example, a circular hole.

  As shown in FIGS. 7 to 9, the ring 4 includes a ring main body corresponding portion 8 for forming the ring main body 5 and a base corresponding portion 9 for forming the base 6. 7 was made. The ring main body corresponding portion 8 and the base corresponding portion 9 are integrally molded by a synthetic resin that is a soft material.

  As shown in FIGS. 7 to 9, the ring main body corresponding portion 8 is provided continuously with an annular portion corresponding region 81 for forming the annular portion 51, and the distal end side of the annular portion corresponding region 81. A tip connection portion corresponding region 82 for forming the tip connection portion 52 is provided.

  As shown in FIGS. 7 to 9, each annular portion corresponding region 81 has a three-dimensional shape that is preliminarily curved. Specifically, a flat band-like portion corresponding portion 83 for forming the flat band-like portion 53 and first and second curved band-like portion corresponding portions 84 and 85 for forming the curved belt-like portion 54 are provided. ing. The flat belt-like portion corresponding portion 83 has a flat belt shape extending in a bent state from one side edge of the base corresponding portion 9. The first curved belt-like portion corresponding portion 84 is a curved belt-like shape extending in a bent state from the tip of the flat belt-like portion corresponding portion 83, and has a partial arc shape in a longitudinal sectional view. The second curved belt-like portion corresponding portion 85 is a curved belt-like shape continuously extending from the tip of the first curved belt-like portion corresponding portion 84, and has a partial arc shape in a longitudinal sectional view. The curvature of the first curved belt-like portion corresponding portion 84 and the curvature of the second curved belt-like portion corresponding portion 85 are different from each other. The first and second curved belt-like portion corresponding portions 84 and 85 are designed so that the curved belt-like portion 54 of the completed annular portion 51 has a substantially arc shape, and each curvature is in accordance with its purpose. Is set to a value. That is, the annular portion 51 is formed by the annular portion corresponding region 81 by forcibly deforming the annular portion corresponding region 81 and welding the tip connection portion corresponding region 82 to the base corresponding portion 9. The curvatures of the first and second curved belt-like portion corresponding portions 84 and 85 are set so that the annular portion 51 forms a partial arc shape in a longitudinal sectional view.

  As shown in FIGS. 7 to 9, each tip connection portion corresponding region 82 is a flat strip extending in a bent state from the tip of the second curved strip portion corresponding portion 85, A welding surface 86 to be welded to the base corresponding portion 9 is provided. The welding surface 86 includes the positioning projection 58 and a welding promoting element 87 that melts preferentially when welding and promotes welding between the welding surface 86 and a welding surface 93 described later. The welding promoting element 87 is disposed in the vicinity of the positioning projection 58 on the welding surface 86 and is formed integrally with the welding surface 86. Specifically, a plurality of welding promotion elements 87 having a hemispherical shape are arranged on the welding surface 86 in a predetermined pattern. The tip connection portion corresponding region 82 includes a main portion 88 corresponding to the tip connection portion 52 of the ring body 5 and a portion 89 other than the main portion that is cut off before the ring 4 is completed. The welding promoting element 87 is formed in the main portion 88. In FIGS. 7 to 11, portions 89 other than the main part are shown with patterns.

  As shown in FIGS. 7 to 9, the base-corresponding portion 9 has a flat band shape, and a joining portion corresponding region 91 corresponding to the joining portion 61 and a non-joining portion corresponding region corresponding to the non-joining portion 62. 92 are alternately provided. A welding surface 93 that is welded to the tip connection portion corresponding region 82 is provided on one surface side of each joint portion corresponding region 91. The welding surface 93 includes the positioning recess 63 and a welding accelerating element 94 that melts preferentially when welding and promotes welding between the welding surfaces 86 and 93. The welding promoting element 94 is disposed in the vicinity of the positioning recess 63 on the welding surface 93 and is formed integrally with the welding surface 93. Specifically, a plurality of welding promotion elements 94 having a hemispherical shape are arranged on the welding surface 93 in a predetermined pattern. The arrangement pattern of the welding promotion element 94 in the joint corresponding area 91 is different from the arrangement pattern of the welding promotion element 87 in the tip connection area corresponding area 82, and the welding promotion element 94 in the joint corresponding area 91 when being welded. And the welding promoting element 87 in the tip connection portion corresponding region 82 are set so as not to interfere with each other. Moreover, the base corresponding | compatible part 9 is equipped with the main part 95 equivalent to the said base 6, and the site | parts 96 other than the main part cut off before completion of the ring 4, and the positioning recess 63 and the welding promoting element 94 described above. Is formed in the main portion 95. In FIGS. 7 to 11, portions 96 other than the main part are shown with patterns.

  Next, a method for manufacturing the above-described ring notebook N will be described with reference to FIGS.

  First, a ring main body corresponding portion 8 provided with an annular portion corresponding region 81 corresponding to the annular portion 51 and a tip connecting portion corresponding region 82 corresponding to the tip connecting portion 52, and a base corresponding portion 9 corresponding to the base 6. The synthetic resin ring forming member 7 is integrally formed by injection molding. At this stage, the ring forming member 7 has a three-dimensional shape as shown in FIG.

  Next, the plurality of ring body corresponding portions 8 of the ring forming member 7 are respectively inserted into the plurality of binding holes 11, 21, and 31 of the front cover 1, the back cover 2, and the middle sheet 3 that are sheets. That is, in a state in which a certain number of middle sheets 3 and covers 1 and 2 are aligned, the ring body corresponding portions 8 of the ring forming member 7 are passed through the binding holes 11, 21, and 31, respectively, The tip connection portion corresponding region 82 is held by a jig (not shown).

  Then, as shown in FIG. 10, by moving the jig, the ring body corresponding portions 8 are curved and deformed, and the tip connection portion corresponding region 82 of the ring body corresponding portion 8 is changed to the base corresponding portion 9. To be attached. Thereafter, as shown in FIG. 11, the contact portion is welded. When each tip connection portion corresponding region 82 of the ring body corresponding portion 8 is brought into contact with the base corresponding portion 9, each positioning protrusion 58 of the tip connection portion corresponding region 82 and each of the base corresponding portions 9 The positioning recesses 63 are engaged with each other, so that the positional displacement between the tip connection portion corresponding region 82 and the base corresponding portion 9 is prevented. Further, when the welding portion is pressed and heated in the heated state, the welding promoting elements 87 and 94 are preferentially melted and spread on the welding surfaces 86 and 93, so that smooth and reliable welding is achieved. It becomes possible.

  After the welding is completed in this manner, the portion 96 other than the main portion of the base corresponding portion 9 and the main portion other than the main portion of the tip connection portion corresponding region 82 of the ring main body corresponding portion 8 welded to the base corresponding portion 9. The part 89 is cut off to obtain a ring notebook N as shown in FIG.

  As described above, the ring notebook N according to this embodiment includes a front cover 1, a back cover 2, and a middle cover 3 that are a plurality of sheets having binding holes 11, 21, and 31. 4, wherein the ring 4 connects a plurality of ring bodies 5 respectively inserted through the binding holes 11, 21, and 31, and the base ends of the ring bodies 5, and And a base 6 that holds each ring body 5 in a closed ring shape while holding the front end side of the ring body 5, and the ring body 5 binds the front cover 1, the back cover 2, and the middle sheet 3. 51 and a tip connection portion 52 welded to the base 6, a positioning projection 58 is provided on the tip connection portion 52, and the positioning projection 58 is welded to the base 6. Ring book to engage with It is provided with a positioning recess 63 for positioning 5 and a tip connecting portion 52 and the base 6. Therefore, if the positioning protrusions 58 and the positioning recesses 63 are associated with each other in welding, the positional deviations of these can be prevented, and the annular portions 51 can be formed in a desired shape.

  Further, the ring 4 of the present embodiment is made of a ring forming member 7 having a ring body corresponding portion 8 for forming the ring body 5 and a base corresponding portion 9 for forming the base 6. The ring body corresponding portion 8 includes an annular portion corresponding region 81 and a tip connecting portion corresponding region 82 provided continuously on the tip side of the annular portion corresponding region 81, The annular portion 51 is formed by the annular portion corresponding region 81 by forcibly deforming the annular portion corresponding region 81 and welding the tip connection portion corresponding region 82 to the base corresponding portion 9. . And it welds preferentially when welding to the welding surface 86 of the said front-end | tip connection part corresponding | compatible area | region 82 and the welding surface 93 of the said base corresponding | compatible part 9 mutually welded, and the welding surfaces 86 and 93 are welded together. Since the welding accelerating elements 87 and 94 that promote the welding are provided, respectively, the welding surfaces 86 and 93 can be reliably joined to each other.

  In particular, the ring main body corresponding portion 8 and the base corresponding portion 9 are integrally molded by a synthetic resin, and the welding promoting elements 87 and 94 are integrally formed on the welding surfaces 86 and 93, respectively. It is formed. Therefore, not only the ring forming member 7 can be easily molded, but also the welding promoting elements 87 and 94 can be easily formed.

  Since the welding promoting elements 87 and 94 are arranged in the vicinity of the positioning projection 58 and the positioning recess 63 on the welding surfaces 86 and 93, respectively, the positioning projection 58 and the positioning recess 63 are connected to each other. It is possible to perform welding while fixing the fixed state after being engaged. In particular, in the present embodiment, the plurality of welding promoting elements 87 and 94 are disposed so as to surround the positioning protrusions 58 and the positioning recesses 63, respectively. The periphery of the recess 63 can be melted uniformly. Further, each welding promoting element 87, 94 is a small resin lump, and is set so that the welding promoting element 94 of the base corresponding portion 9 and the welding promoting element 87 of the tip connecting portion corresponding region 82 do not interfere when being welded. Therefore, even if these welding promoting elements 87 and 94 are melted, the thickness dimension of the ring 4 is not significantly affected.

  The positioning protrusion 58 is cylindrical, and the positioning recess 63 is a circular hole with which the positioning protrusion 58 can be engaged. Cheap. In addition, since the positioning protrusion 58 and the positioning recess 63 have a substantially circular shape in a plan view, it is possible to prevent displacement in all directions of 360 degrees.

  In addition, the manufacturing method of the ring notebook N of the present embodiment includes a ring body corresponding portion 8 including an annular portion corresponding region 81 corresponding to the annular portion 51 and a tip connecting portion corresponding region 82 corresponding to the tip connecting portion 52. A synthetic resin ring forming member 7 having a base corresponding portion 9 corresponding to the base 6 is integrally formed by injection molding, and a plurality of ring body corresponding portions 8 of the ring forming member 7 are formed on the front cover 1, The plurality of binding holes 11, 21, 31 of the back cover 2 and the inner cover 3 are inserted into the respective binding holes 11, 21, and 31, and the respective ring body corresponding parts 8 are bent and deformed so that the tip connection part corresponding area 82 of the ring body corresponding part 8 is the base The portion 96 other than the main portion of the base corresponding portion 9 that is welded to the corresponding portion 9 and the portion other than the main portion of the tip connection portion corresponding region 82 of the ring main body corresponding portion 8 that is welded to the base corresponding portion 9 89, the main portion 88, 95 forms the base 6 and the tip connection portion 52 of the ring body 5, and the ring cover corresponding region 81 of the ring body corresponding portion 8 covers the front cover 1, the back cover 2, and the middle. An annular portion 51 of an annular ring body 5 that binds the paper 3 is formed.

  Therefore, at the welding stage, the welding area between the tip connection portion corresponding region 82 of the ring main body corresponding portion 8 and the base corresponding portion 9 can be widened, and these can be reliably welded. Further, by separating portions 96 and 89 other than the main portion of the tip connection portion corresponding region 82 of the base corresponding portion 9 and the ring main body corresponding portion 8 at the end, the other side edge side of the base 6, that is, the end portion of the ring 4 is Can be orderly. During welding, it is conceivable that a part of the welding promoting elements 87 and 94 flows out to the side of the parts 89 and 96 other than the main part, but this is not a problem because it does not remain in the ring 4 as a product by the separation work. Must not.

  Further, the plurality of ring main bodies 5 are inserted corresponding to the plurality of binding holes 11, 21, and 31, respectively, and in the present embodiment, the longitudinal direction of the rectangular binding holes 11, 21, and 31. Is substantially equal to the width of the annular portion corresponding region 81 of the ring forming member 7, so that the annular portion 51 of the ring 4 corresponding to the annular portion corresponding region 81 is on the longitudinal direction side of the ring notebook N It is also possible to suppress shifting or deformation.

  Furthermore, since the base 6 has a flat plate shape, the thickness of the ring notebook N can be relatively suppressed. Since the base 6 is positioned between the back cover 2 and the inner cover 3 adjacent to the back cover 2, when the ring notebook N is closed, the base 6 can be seen from either the front cover 1 side or the back cover 2 side. Also, the base 6 is concealed. Also, when the ring notebook N is opened at a portion other than the back cover 2, the base 6 is not visible to the user. Therefore, when the ring notebook N is normally used, only the annular portion 51 of the ring 4 is exposed to the outside, so that an appearance similar to that of a conventional ring of metal wire can be obtained. .

  Further, when the ring main body 5 is joined to the base 6 by welding, the welding surface 86 of the tip connection portion corresponding region 82 of the ring main body corresponding portion 8 and the welding surface 93 of the base corresponding portion 9 are plastically deformed. And the base 6 can be brought into close contact with each other.

  The present invention is not limited to the embodiment described above.

  In the embodiment described above, the positioning protrusion is provided in the tip connection portion and the positioning recess is provided in the base. Conversely, the positioning recess is provided in the tip connection portion, and Positioning protrusions may be provided on the base.

  In addition to the positions where the positioning protrusions and positioning recesses are provided, the size and / or shape of the positioning protrusions and positioning recesses are not limited to those shown in the drawings and can be variously changed. As an example, FIG. 13 shows a ring forming member according to a modification of the present invention. In FIG. 13, parts that are the same as or correspond to those in the above-described embodiment are given the same reference numerals with “A” added in advance, and detailed descriptions thereof are omitted. The positioning projection A58 of this modification is a prismatic shape, and more specifically, the positioning projection A58 has a rectangular shape in plan view extending in the longitudinal direction of the ring body corresponding portion A8. The positioning recess A63 is a rectangular hole with which the positioning protrusion A58 can be engaged. More specifically, the positioning recess A63 is a notch having a rectangular shape in plan view that opens to the other end of the base corresponding part A9. . When the positioning projection A58 according to this modification is engaged with the positioning recess A63, it is possible to suppress the positional displacement of the tip connection portion A52 in the vertical direction and the right direction in FIG. 13 with respect to the base corresponding portion A9. That is, specific examples of the shape of the positioning protrusion and the positioning recess are not limited to a circular shape in a plan view or a rectangular shape in a plan view, and may be a triangular shape, an elliptical shape, or other different shapes. . Further, the two protrusions in the cross-sectional view, that is, the positioning protrusion and the positioning recess for positioning the single tip connection portion are formed from the plurality of protrusions and the plurality of recesses, respectively. It may be a thing.

  The height dimension of the positioning protrusion is preferably such that the positioning protrusion can be entirely accommodated in the positioning recess as in the above-described embodiment in a state where the positioning protrusion is engaged with the positioning recess. However, it is not limited to this, and the height dimension of the positioning protrusion and the depth dimension of the positioning recess are substantially the same, or the height dimension of the positioning protrusion is greater than the depth dimension of the positioning recess. May be set larger.

  In addition, the positioning recess is not limited to the above-described through hole or notch, but may be a bottomed hole. As the specific shape of the notch in the positioning recess, the U-shaped in plan view, the triangular shape in plan view, and the plane shape in addition to the inverted U-shape in plan view (rectangular shape in plan view) as shown in FIG. Examples include a viewing trapezoidal shape and a shape obtained by combining an arc shape and a trapezoidal shape in a plan view. The width of the opening end of the notch, such as the shape of the positioning recess, which is triangular, trapezoidal, or a combination of arc and trapezoid in plan view, If it is set larger than this, the engagement between the positioning projection and the positioning recess can be smoothly performed.

  Each welding promoting element is not limited to the shape and size, and the arrangement thereof can be variously changed. As an example, FIG. 14 shows a ring forming member according to another modification of the present invention. In FIG. 14, the same or corresponding parts as those in the above-described embodiment are denoted by the same reference numerals with “B” added in advance, and detailed description thereof is omitted. The welding promoting elements B87 and B94 of the ring forming member B7 according to this modification are different in number and arrangement from those of the above-described embodiment.

  The shape of the ring main body is not limited to the shape shown in the figure, and can be variously changed. For example, the ring main body may have a substantially rectangular shape with a flat cross-sectional shape, a circular shape, an elliptical shape, or other shapes. Furthermore, the thickness dimension of the ring body is not limited to a constant one, and the thickness dimension may be changed.

  Further, the arc shape of the ring body may be any, and in the above-described embodiment, two kinds of curved belt-like portion corresponding portions having different curvatures are provided in the annular portion corresponding region of the ring body corresponding portion. However, various modifications can be made as long as the curved belt-like portion of the completed annular portion is designed to easily guide the paper. Of course, the curvature of the curved belt-like portion corresponding region may be the same as a whole (the curvature is set to one type), or various kinds of curved belt-like portion corresponding portions having different curvatures may be set. is there. Further, the shape of the curved belt-like portion is not limited to an arc.

  Further, in the above-described embodiment, at the manufacturing stage of the ring notebook, a part other than the main part of the base corresponding part and a part other than the main part of the tip connection part corresponding region of the ring main body corresponding part welded to the base corresponding part. However, this is not a limitation. For example, after welding the tip connection part corresponding region of the ring body corresponding part to the base corresponding part, the tip connection part corresponding region protruding from the other side edge of the base corresponding part is separated, or conversely, the tip connection part The base corresponding portion that protrudes from the tip edge of the corresponding region may be cut off. In addition, the tip edge of the tip connection portion corresponding region of the ring main body corresponding portion and the other side edge of the base corresponding portion may be aligned at the welding stage so that separation processing is not performed after welding. It is. That is, the ring forming member may not include the “part other than the main part” (the blank part) in the above-described embodiment. Further, the shape of the tip of the ring body and the shape of the tip of the ring body corresponding portion may be an arc shape or a triangle shape in addition to the illustrated square shape.

  Furthermore, the ring forming member is not limited to one having a length dimension substantially corresponding to the vertical dimension of the ring notebook, and may be shorter than this. In that case, a ring notebook may be formed using a plurality of ring forming members. That is, in the above-described embodiment, the paper is bound by a single ring forming member having a length dimension from the upper end to the lower end of the ring notebook, but the upper end to the lower end of the ring notebook is divided into a plurality of locations. The sheets may be bound by a plurality of ring forming members having dimensions shorter than those described above.

  In addition to the notebook size and normal notebook size, the ring notebook can be of various sizes. Further, the shape of the binding hole may be a circle, an ellipse, or other shapes besides a rectangle.

  The material of the ring body may be, for example, a fiber such as paper, a glass fiber, a metal such as aluminum, a shape memory alloy, a sheet-like nonwoven fabric in which fibers are entangled without being woven, or other appropriate materials in addition to the above-described synthetic resin May be natural materials.

  In addition, various changes may be made without departing from the spirit of the present invention.

N ... Ring notebook 11, 21, 31 ... Binding hole 4 ... Ring 5 ... Ring body 51 ... Annular part 52 ... End connection part 58, A58, B58 ... Positioning projection 6 ... Base 63, A63, B63 ... Positioning recess 7, A7, B7 ... Ring forming member 8, A8, B8 ... Ring main body corresponding portion 81, A81, B81 ... Annular portion corresponding region 82, A82, B82 ... Tip connection portion corresponding region 86, A86, B86 ... Welding surface 87, A87, B87 ... welding promoting element 88, B88 ... main part 89, B89 ... parts other than main part 9, A9, B9 ... base corresponding part 93, A93, B93 ... welding surface 94, A94, B94 ... welding promoting element 95, B95 ... main part 96, B96 ... parts other than the main part

Claims (5)

A ring notebook in which a plurality of sheets having binding holes are bound by a synthetic resin ring,
The ring connects a plurality of ring main bodies respectively inserted through the binding holes and the base ends of the ring main bodies, and maintains the front ends of the ring main bodies to maintain the ring main bodies in a closed ring shape. The ring body includes an annular portion for binding paper, and a tip connection portion welded to the base, and is positioned on either the tip connection portion or the base. A ring notebook provided with a positioning recess for positioning the tip connecting portion of the ring main body and the base by engaging with the positioning projection when being welded to the other. The ring is made of a ring forming member including a ring body corresponding part for forming the ring body and a base corresponding part for forming the base, and the ring body corresponding part The annular portion corresponding region and the distal end connecting portion corresponding region continuously provided on the distal end side of the annular portion corresponding region, and forcibly bending and deforming the annular portion corresponding region By welding the connection portion corresponding region to the base corresponding portion, the annular portion is formed by the annular portion corresponding region, and the welding surface of the tip connection portion corresponding region and the base corresponding portion that are welded to each other The ring notebook according to claim 1, further comprising: a welding promoting element that is preferentially melted when being welded and promotes welding between the welding surfaces. The ring according to claim 2, wherein the ring main body corresponding portion and the base corresponding portion are integrally molded by a synthetic resin, and the welding promoting element is integrally formed on the welding surface. Note. The ring notebook according to claim 2 or 3, wherein the welding accelerating element is disposed in the vicinity of the positioning protrusion and / or the positioning recess on the welding surface. A method of manufacturing a ring notebook according to claim 1, 2, 3 or 4,
Synthetic resin ring formation comprising a ring main body corresponding portion having an annular portion corresponding region corresponding to the annular portion and a tip connecting portion corresponding region corresponding to the tip connecting portion, and a base corresponding portion corresponding to the base The members are integrally formed by injection molding,
A plurality of ring body corresponding portions of the ring forming member are respectively inserted into a plurality of binding holes of the paper,
Bending and deforming each ring body corresponding part to weld the tip connection part corresponding region of the ring body corresponding part to the base corresponding part,
Separate the part other than the main part of the tip connection part corresponding region of the ring main body corresponding part welded to the base corresponding part and the part other than the main part of the base corresponding part,
A ring notebook manufacturing method in which the base and the tip connecting portion of the ring body are formed by the main portion, and the annular portion of the annular ring body that binds paper is formed by the annular portion corresponding region of the ring body corresponding portion. .