JP2008080574A - Filing binding leg and backwidth adjustable file equipped therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filing binding leg, the length of which can be easily adjusted in response to the increase and decrease in number of paper sheets, and a backwidth adjustable file equipped with the binding leg. <P>SOLUTION: This filing binding leg consists of one set of flexible filing legs, each of which is inserted in one of two binding holes provided on each of paper sheets and is formed by including a binding-leg strap main body having a broad-widthed nearly square cross section and a pointed tip, a securing base part provided at the base end of the binding leg main body normal thereto and a securing part consisting of a securing blade provided from both the edges of the securing base part parallel to the binding leg main body, wherein a plurality of recessed grooves are formed on the top face of the binding leg main body and, in addition, widthwise notched grooves are provided at the base part of the binding leg main body and, at the same time, a small projection is respectively provided at the outside side part of the tip of the securing blade of the securing part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a binding foot used for a file whose back width can be adjusted in accordance with an increase or decrease of paper sheets such as documents, and a back width adjustable file including the binding foot.

  2. Description of the Related Art Conventionally, a file having a mode in which a binding foot is inserted into a binding hole formed in a paper sheet and the paper sheet is bound is known. In particular, various files have been proposed that can change the width of the spine cover to accommodate the amount of paper sheets to be bound. A file that changes the width of the back cover is, for example, a bag in which a front cover and a back cover are separated from each other, and a spine cover having an arbitrary width is integrally formed on one side of the front cover, and the back cover has an opening on one side. It is formed and configured as a shape. Then, the paper sheets are sandwiched with the side edges of the back cover inserted into the opening of the back cover. With this configuration, the width of the spine to be displayed changes according to the amount of the spine inserted into the back cover, so that the amount of sheets to be bound can be freely changed.

  Further, the front cover and the back cover are provided with binding flaps for holding the paper sheets, and the binding flaps have through holes at substantially the same positions as the binding holes formed in the paper sheets. Is provided. A binding foot is inserted from the through hole of the binding flap on the back cover to sandwich the paper sheet, and the binding foot is locked by the binding tool main body on the binding flap side of the front cover.

  The binding foot used for the file that changes the width of the spine must be long enough to handle the increase in the number of sheets to be bound. If the binding legs are made long in advance so that many paper sheets can be sandwiched, the binding legs will protrude from the cover when there are few paper sheets to be sandwiched, resulting in poor appearance and storage problems.

The length of the binding foot can be adjusted according to the amount of paper sheets to be bound. For example, when the amount of paper sheets is increased with a pair of binding feet integrally connected by a connecting piece. Has been proposed which is cut by the connecting piece and divided into two to extend the binding leg (for example, see Patent Document 1). In addition, an attachment hole through which the binding foot is inserted and an elastically deformable holding portion are formed in the backing member that is in contact with one surface of the paper sheet, and the extra length portion of the binding foot is associated with the holding portion. A file that adjusts the length of the binding foot according to the amount of paper sheets by removing the paper has been proposed (for example, see Patent Document 2).
Japanese Patent No. 3095690 JP 2006-95964 A

  In the case of cutting the integrally formed binding foot as described above, once the connecting piece is cut, it cannot be connected again, so when the amount of paper sheets is reduced, the tip of the binding foot is There was a problem that the file would stick out. Further, when the length of the binding foot is adjusted by engaging / disengaging the surplus length portion of the binding foot with the holding portion, the adjustment of the surplus length portion is complicated, and it sometimes takes time to engage and disengage.

  The present invention has been made in view of the above problem, and can adjust the length of the binding foot according to the increase or decrease of the paper sheets, and the back width adjustment including the binding foot. The purpose is to provide possible files.

  A binding foot for a file according to the present invention is a set of flexible binding feet for a file that are respectively inserted into two binding holes provided in a paper sheet, and includes a band-shaped binding foot main body, and A binding base formed with a locking base provided in a direction substantially orthogonal to the base end of the binding foot main body and a locking blade provided in parallel to the binding foot main body from both ends of the locking base is formed and bound. A plurality of concave grooves are formed on the upper surface of the foot main body, a cut groove is provided in the width direction at the base of the binding foot main body, and the outer side portion at the tip of the locking blade of the locking portion is provided. A small protrusion is provided for each.

  The back adjustable file according to the present invention comprises a front cover and a back cover, each of which has a binding flap on one side of the front cover and the back cover, and one of the front cover and the back cover. A back cover is continuously provided on the front cover via a binding flap, and a back cover insertion portion having an opening on the side having the binding flap is provided on the other cover so that a side end portion of the back cover can be inserted. The binding flap formed on the front cover or the back cover is formed with two through-holes or insertion notches that match the positions of the two binding holes provided on the paper sheet. The main body is detachably attached, and the other cover binding flap has two main attachment holes that coincide with the two binding hole positions provided on the paper sheet and a pair of binding legs, respectively. A first mounting hole for locking the locking base of the binding foot; The second mounting hole is formed on the same line, and the above-mentioned binding foot penetrates the first mounting hole, the second mounting hole, and the main mounting hole formed in the binding flap, and each locking portion is the first mounting hole. It is attached so as to be locked by one attachment hole or the second attachment hole, and the length of the binding foot is configured to be slightly shorter than the length from the first attachment hole to the file end on the main attachment hole side. It is characterized by that.

  The first mounting hole is a long hole having a substantially rectangular shape having a width substantially equal to the width of the locking base and a length substantially equal to the length of the locking blade, and is formed at one end in the length direction of the locking base. It is formed as a through hole having a notch with a width smaller than the width, and the two first attachment holes are arranged close to the approximate center of the binding flap so that the notch of the first attachment hole faces the outside. Preferably, one second mounting hole is arranged on the outer side of each of the two first mounting holes, and one main mounting hole is arranged on the outer side of each of the second mounting holes.

  Further, the first mounting hole is a substantially rectangular long hole having a width substantially equal to the width of the locking base and a length substantially equal to the length of the locking blade. It is formed as one through hole having a notch with a width smaller than the width, and the first mounting hole is disposed at the approximate center of the binding flap, and one second hole is provided on each outer side of the first mounting hole. One main mounting hole may be arranged on each outer side of the second mounting hole.

  The spine width adjustable file according to the present invention is provided with a slip-off prevention portion that is folded back at the side end portion of the spine cover, and is provided on the paper sheet on the binding flap of the cover cover on which the spine cover insertion portion is formed. Two insertion notches corresponding to the two binding hole positions are formed, and a folded piece is provided at the base end portion thereof, and the folded piece has two penetrating holes corresponding to the two binding hole positions provided in the paper sheets. A hole is to be formed.

  The file binding leg of the present invention and the file with adjustable back width provided with the binding leg can adjust the length of the binding leg to be pulled out by moving the locking position of the binding part of the binding leg. It can cope with the increase and decrease of leaves. In addition, it is possible to easily move the locking position of the binding portion of the binding foot in a state where the sheets are bound.

  The binding foot of the file of the present invention has a substantially rectangular shape with a wide cross section and a band-shaped binding foot main body having a tapered tip, and a locking base provided in a direction substantially orthogonal to the base end of the binding foot main body, The locking base portion is configured to include a locking portion including a locking blade provided in parallel to the binding foot main body from both ends, and a plurality of concave grooves are formed on the upper surface of the binding foot main body and The base is a pair of flexible binding legs in which cut grooves are provided in the width direction, and small protrusions are provided on the outer side portions of the tips of the locking blades of the locking portions. .

  The back adjustable file of the present invention to which the binding foot is attached comprises a front cover and a back cover, each of which has a binding flap on one side of the front cover and the back cover, and the back cover is attached to the back cover. A back cover insertion portion having an opening is formed on the side of the front cover having a binding flap so that the side end of the back cover can be inserted. The front cover binding flap is formed with two insertion notches that coincide with the two binding hole positions provided on the paper sheet, and a folding piece is provided at the base end of the binding flap. The back cover binding flap has one first mounting hole disposed substantially at the center of the binding flap, and one second mounting hole on each outer side of the one first mounting hole. The main mounting holes are arranged on the same line as the main mounting holes on the outer sides of the second mounting holes, and the positions of the main mounting holes coincide with the positions of the two binding holes provided on the sheets. I am doing so. Then, the binding tool main body is provided on the front cover binding flap, and the above-described binding feet are provided on the back cover binding flap.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a file binding foot and a file having adjustable back width according to the present invention will be described below in detail with reference to the drawings. The present invention is not limited to the following examples.

  As shown in FIG. 1, the back adjustable file according to the first embodiment of the present invention is composed of a front cover 1 and a back cover 2 in which a spine cover 3 is continuously provided. The binding tool body 8 is attached to the binding flap 4, and the binding foot 9 is attached to the binding flap 6 provided on the back cover 2.

  Front cover 1 and back cover 2 have a rectangular shape sized according to the standard of paper sheets such as A and B, and the binding flaps 4 and 6 are the binding sides of front cover 1 and back cover 2, respectively. Is formed as a strip-like rectangle extending from the upper end to the lower end of the cover.

  As shown in FIG. 2, the back cover 2 has a binding flap 6 formed by folding one side of the back cover 2 with a mountain fold, and extends to the opposite side of the back cover 2 with the binding flap 6 in between. The back cover 3 is continuously connected. Then, a fall prevention portion 7 having a length shorter than the file height is provided on the side edge of the spine cover 3, and a valley fold crease is formed at the side continuous with the spine cover 3, as shown in FIG. Is folded to the back cover 3 side.

  A plurality of attachment holes are formed on the same line in the binding flap 6 of the back cover 2. In the first embodiment, as shown in FIG. 2, one first mounting hole 21 is arranged at the approximate center of the binding flap 6, and the second mounting holes 22 are formed on both outer sides of the first mounting hole 21. Are arranged at symmetrical positions. And the main attachment hole 23 is arrange | positioned in the symmetrical position on the outer side of the 2nd attachment hole 22, respectively. Here, the main attachment hole 23 is formed at a position substantially coinciding with the two binding hole positions provided in the paper sheet. When viewed from the side, the first mounting hole 21 has a width substantially equal to the width of a locking base 63 of the binding foot 9 described later, and a length substantially equal to the length of the locking blade 64 of the binding foot 9. It is a substantially rectangular long hole, and is a through hole in which notches having a width smaller than the width of the locking base 63 are provided at both ends in the longitudinal direction of the binding flap 6. A second mounting hole 22 disposed at both outer ends of the first mounting hole 21 in the longitudinal direction of the binding flap 6 and a main mounting hole 23 disposed on the outer side of each of the second mounting holes 22 are bound later. The leg 9 has a shape substantially equal to or slightly larger than the outer diameter of the cross section of the binding foot main body 61 and is formed as a long through hole in the width direction of the binding flap 6.

  Here, as the first embodiment, the first mounting hole 21 is a single through hole, but it may be two through holes. In this case, the first attachment hole 21 is a substantially rectangular long hole having a width substantially equal to the width of the locking base 63 and a length substantially equal to the length of the locking blade 64, and the binding flap 6 A pair of through-holes having notches with a width smaller than the width of the locking base 63 on one end side in the longitudinal direction, and the pair of first mounting holes 21 of the binding flap 6 are formed so that the notches face outward. Place it close to the center.

  As shown in FIG. 3, the front cover 1 is formed by folding one side of the front cover 1 with a mountain fold to form a binding flap 4, and the other side is folded back to the vicinity of the base of the binding flap 4. An opening spine cover insertion portion 10 is formed on the cover 1 on the side where the binding flap 4 is provided. A folding piece 5 having a length shorter than the file height is provided at the base of the binding flap 4.

  In the binding flap 4 of the front cover 1, a rectangular insertion notch 13 is formed from the upper end side of the binding flap 4 at positions corresponding to the two binding hole positions provided on the paper sheets. Further, a first through hole 11 is formed at a substantially center of the binding flap 4 so that a first locking portion 55 of the binding tool body 8 to be described later can be inserted, and each of the two insertion notches 13 is formed. In the outer position, one second through hole 12 is formed in a shape in which the second locking portion 57 of the binding tool body 8 can be inserted.

  The folded piece 5 provided at the base of the binding flap 4 on the front cover 1 is formed with a width substantially equal to the binding flap 4. Then, third through holes 14 are provided at positions corresponding to the two binding hole positions provided in the paper sheets when folded back at the connecting side so as to contact the side surface of the binding flap 4. ing. Further, as shown in FIG. 5, when the spine cover 3 is accommodated in the opening of the spine cover insertion portion 10 of the front cover 1, the folded piece 5 is also accommodated in the opening of the spine cover insertion portion 10. Is prevented from inadvertently slipping off the front cover 1.

  Here, as the first embodiment, the insertion notch 13 is formed from the upper end side of the binding flap 4 so as to include the positions corresponding to the two binding hole positions provided on the paper sheets, but the through hole is formed. You can also In this case, the through hole is formed at a position corresponding to each of the two binding hole positions provided in the paper sheet. This through hole is formed at the same position as the third through hole 14 provided in the folded piece 5 when the folded piece 5 is folded to the binding flap 4 side.

  The binding leg 9 attached to the back cover 2 has flexibility, and as shown in FIG. 6, a binding leg body 61 having a substantially rectangular shape with a wide cross section and a tapered tip, and the binding leg. A locking base 63 provided in a direction substantially orthogonal to the base end of the main body 61, and a locking portion 62 including locking hooks 64 provided in parallel to the binding foot main body 61 from both ends of the locking base 63. Is done. Although the binding foot main body 61 is not shown, it is preferable to chamfer each side in the longitudinal direction. This may cause damage to the attachment hole or binding hole when inserted into the attachment hole provided in the binding flap 6 on the back cover 2 or the binding hole provided on the paper sheet, or may be accidentally injured during handling. This is to prevent you from doing. Small protrusions 65 are provided on the outer side portions of the tips of the locking blades 64 of the locking portion 62, respectively.

  The binding legs 9 configured in this way are used as a set of two. Each binding foot body 61 has a required length necessary for binding, and includes a first mounting hole 21 to a second mounting hole 22 formed in the binding flap 6 on the back cover 2 of the file to be attached, and a main mounting hole. The length of the side 23 is slightly shorter than the length to the file end. This is to prevent the front end of the binding foot main body 61 from protruding from the file when the binding foot 9 is attached to the binding flap 6 of the back cover 2.

  A plurality of concave grooves 66 are formed at equal intervals on the upper surface of the binding foot main body 61, and a notch groove 67 having a substantially V shape or U shape in a side view is formed at the base of the binding foot main body 61. . The concave groove 66 engages with the locking protrusion 46 of the binding tool body 8 when the binding foot body 61 is locked by the binding tool body 8, and prevents the binding foot body 61 from slipping. When the binding foot main body 61 is attached to the binding flap 6, it is formed so that it can be bent flexibly. The notch groove 67 is formed to assist the locking portion 62 to be reliably locked in the first mounting hole 21 or the second mounting hole 22.

  The locking portion 62 includes a locking base 63 provided in a direction substantially orthogonal to the proximal end of the binding foot main body 61, and a locking provided in parallel to the binding foot main body 61 from both ends of the locking base 63. Each of the locking blades 64 is provided with a small protrusion 65 on the outer side portion of the front end thereof. The small protrusion 65 is formed with a width substantially equal to or smaller than the gap between the side surface of the binding foot main body 61 and the side surface of the locking blade 64. This is because when the small protrusion 65 is sandwiched from both sides and a force is applied so that the inner side surface of the locking blade 64 comes into contact with the side surface of the binding foot main body 61, the width between the tips of the small protrusions 65 becomes the locking base 63. This is to make the width substantially equal. As a result, the engaging portion 62 of the binding foot 9 can be inserted and removed from the first attachment hole 21 provided in the binding flap 6 of the back cover 2.

  As shown in FIGS. 7 and 8, the binding tool main body 8 attached to the front cover 1 is configured by slidably engaging the operation unit 31 with the base member 41.

  The operation unit 31 includes a pair of a first operation unit 32 and a second operation unit 33, and a first binding foot press unit 34 provided continuously to the outer base end portion of the first operation unit 32 and the second operation unit 33. It is comprised from the 2nd binding foot press part 35 and the hinge part which connects these. The first operating portion 32 and the second operating portion 33 are thick members formed in a spatula shape with the distal end widened when viewed from above, and the distal end is Y-shaped in a top view in which a notch is formed in the approximate center. Shape.

  The first binding foot retainer 34 and the second binding foot retainer 35 have a rectangular upper plate formed on one side with a width substantially equal to the base ends of the first operation portion 32 and the second operation portion 33; The upper plate is formed of a side plate formed downward along the side in the longitudinal direction of the lower surface of the upper plate, and the height of the members is substantially the same as the thickness of the first operation unit 32 and the second operation unit 33. The Further, on the lower outer side surfaces of the side plates of the first binding foot retainer 34 and the second binding foot retainer 35, there are provided slide engagement pieces 40 projecting outward. A cutout 39 that is slightly larger than the width of the binding foot main body 61 of the binding foot 9 is formed at the outer base end portion of the upper surface plate.

  The first operation portion 32 and the first binding foot press portion 34, and the second operation portion 33 and the second binding foot press portion 35 are connected via a hinge piece 38, respectively. The hinge piece 38 is a thin member, and connects the first operation portion 32 and the first binding foot press portion 34, and the second operation portion 33 and the upper surface portion of the second binding foot press portion 35. Thereby, as shown in FIG. 8, the 1st operation part 32, the 1st binding foot press part 34, the 2nd operation part 33, and the 2nd binding foot press part 35 can each bend | fold in a valley fold.

  The first operation unit 32 and the second operation unit 33 are connected by a main hinge unit 36 and an auxiliary hinge unit 37. The main hinge portion 36 connects the lower surface portions of the first operation portion 32 and the second operation portion 33 at both end portions of the distal ends of the first operation portion 32 and the second operation portion 33. The auxiliary hinge portion 37 has a V-shape when viewed from the side, and the upper end of the auxiliary hinge portion 37 is the first operation portion 32 and the second operation portion at the central cutout portion of the distal ends of the first operation portion 32 and the second operation portion 33. The upper part of 33 is connected. Therefore, as shown in FIG. 8, the first operating portion 32 and the second operating portion 33 are bent into a mountain fold by the main hinge portion 36 and the auxiliary hinge portion 37. Since the auxiliary hinge part 37 is configured as a V-shape in a side view, when the tips of the first operation part 32 and the second operation part 33 are lifted upward, the first operation part 32 and the first operation part 32 of the auxiliary hinge part 37 2 The distance between the connection base points with the operation unit 33 is extended, and when the tips of the first operation unit 32 and the second operation unit 33 are further lifted, the distance between the connection base points becomes substantially the same as before the lift. Accordingly, when the operation unit 31 is lifted, the first operation unit 32 and the second operation unit 33 are stably started up.

  The base member 41 includes a strip-shaped base substrate 42 having both ends formed in a substantially semicircular shape, a pair of first support walls 51 provided along both sides of the base substrate 42, and a pair of second support walls 52. And a pair of third support walls 53, a first locking piece 54 provided on one side of the base substrate 42, and a pair of second locking pieces 56.

  As shown in FIG. 7B, two rectangular cutouts 43 are formed on one side of the base substrate 42 at substantially equal positions from the center of the base substrate 42 so as to open laterally. The notch 43 is formed at a position that coincides with the two binding hole positions provided on the paper sheet, and has substantially the same shape and the same size as the insertion notch 13 of the binding flap 4 of the cover 1 described above. Is done. The first locking portion 55 provided on the first locking piece 54 is locked in the vicinity of the side opposite to the side where the notch 43 is formed, which is substantially the center of the base substrate 42. A first locking hole 44 is formed. Near the both ends of the base substrate 42, second locking holes 45 for locking the second locking piece 57 provided in the second locking piece 56 are formed. As shown in FIG. 8, a plurality of locking protrusions 46 are arranged on the upper surface of the base substrate 42 on the outside of the notch 43. The locking projections 46 are provided with a shape and an interval so as to fit into a concave groove 66 formed in the binding foot main body 61 of the binding foot 9.

  The first support wall 51 is formed in the longitudinal direction of the base substrate 42 on both outer sides of the first locking holes 44 on the upper surface of the base substrate 42. The first support wall 51 is a side wall having an inverted L-shaped cross section and separated at a substantially central portion of the base substrate 42, and its outer end is key-shaped. The second support walls 52 are formed along the sides of the base substrate 42 on both outer sides of the notches 43 formed in the base substrate 42 on the upper surface of the base substrate 42. The second support wall 52 is a side wall having an inverted L-shaped cross section, and the outer end is key-shaped. The third support wall 53 is formed along the side of the base substrate 42 inside the notch 43 formed in the base substrate 42 on the upper surface of the base substrate 42. The third support wall 53 is formed as a side wall having an inverted L-shaped cross section and separated at a substantially central portion of the base substrate 42. The first support wall 51, the second support wall 52, and the third support wall 53 are arranged so as to sandwich both side walls of the first binding foot press portion 34 and the second binding foot press portion 35, and the first binding foot The slide engagement pieces 40 of the presser portion 34 and the second binding foot presser portion 35 engage with the inner walls of the first support wall 51, the second support wall 52, and the third support wall 53, and thereby the first binding foot presser portion 34. The second binding foot retainer 35 is slid and moved, and the outer base ends of the first binding foot retainer 34 and the second binding foot retainer 35 at the key portions of the first support wall 51 and the second support wall 52 To stop.

  The first locking piece 54 is provided substantially at the center of the base substrate 42 on the side where the notch 43 is formed. The first locking piece 54 is a thin plate-like member and is connected to the side surface of the base substrate 42 via a hinge. A first locking piece 55 is provided at the tip of the lower surface of the first locking piece 54. The second locking piece 56 is connected to the same side as the first locking part piece 54 and outside the opening of the notch 43 via a hinge. The second locking piece 56 is a thin plate-like member, and a second locking piece 57 is provided on the lower surface of the second locking piece 56. A first locking portion piece 55 provided in the first locking piece 54 and a second locking portion piece 57 provided in the second locking piece 56 are formed in a first locking hole 44 formed in the base substrate 42. And the second engaging hole 45 are provided at positions to engage with each other.

  The operation portion 31 and the base member 41 configured as described above are connected between the first support wall 51 and the third support wall 53 of the base member 41, and the first binding foot press portion 34 and the second binding foot press portion 35 of the operation portion 31. Then, the slide engagement piece 40 is inserted from the inside so as to fit. As shown in FIG. 7A, when the operation portion 31 is completely pushed down, the base ends of the first binding foot press portion 34 and the second binding foot press portion 35 are connected to the first support wall 51. It is fixed at the key-shaped portion of the second support wall 52. At this time, the notch 43 formed in the base substrate 42 by the operation unit 31 is in a closed state. As shown in FIG. 8, when the operation unit 31 is raised by lifting the tips of the first binding foot retainer 34 and the second binding foot retainer 35, the first binding foot retainer 34 and the second binding foot retainer 34 The binding foot press portions 35 slide inward from each other, and the notch 43 is opened.

  The binding tool body 8 and the binding foot 9 having the above-described configuration are used with the binding tool body 8 attached to the binding flap 4 of the front cover 1 and the binding tool 9 attached to the binding flap 6 of the back cover 2.

  As shown in FIG. 9, the binding tool body 8 includes a first locking portion piece 55 of the first locking piece 54 and a second locking piece 57 of the second locking piece 56 that are connected to the first engagement of the base substrate 42. With the notch 43 and the second locking hole 45 separated from each other, the notch 43 formed on the base substrate 42 is made to coincide with the insertion notch 13 formed on the binding flap 4 of the cover 1. The lower surface of the base substrate 42 is attached to the surface of the binding flap 4 that does not contact the paper sheets. Next, the first locking portion 55 of the first locking piece 54 is inserted into the first through hole 11 of the binding flap 4 from the side in contact with the paper sheet and locked to the first locking hole 44. . Similarly, the second locking portion piece 57 of the second locking piece 56 is inserted into the second through hole 12 from the side in contact with the paper sheet and is locked to the second locking hole 45. In this way, the binding tool body 8 is attached to the binding flap 4 on the cover 1 so that the binding flap 4 is sandwiched between the base substrate 42 and the first locking piece 54 and the second locking piece 56.

  As shown in FIG. 10, the binding foot 9 is first inserted into the first attachment hole 21 of the binding flap 6 of the back cover 2 from the surface side that does not come into contact with the sheets. At this time, it is inserted so that the upper surface of the binding foot main body 61 in which the concave groove 66 is formed faces outward. Next, the front end of the binding foot main body 61 is pulled out from the second mounting hole 22 and then inserted from the main mounting hole 23. The binding foot main body 61 pulled out from the main mounting hole 23 is pulled out until the locking portion 62 is locked in the first mounting hole 21. In a state where the binding foot main body 61 is completely pulled out, the locking portion 62 is exposed to the side of the binding flap 6 that does not contact the paper sheets.

Next, a method for locking the binding foot 9 to the binding tool body 8 will be described.
As shown in FIG. 4, the binding tool body 8 is attached to the binding flap 4 of the front cover 1, and the binding foot 9 is attached to the binding flap 6 of the back cover 2, and is continuously provided on the back cover 2. The side end portion of the back cover 3 is inserted into the back cover insertion portion 10 of the cover 1. At this time, the folded piece 5 of the front cover 1 is folded back into the spine cover insertion portion 10 of the front cover 1 as shown in FIG. By folding the folded piece 5 into the spine cover insertion part 10, the fall prevention part 7 connected to the spine cover 3 is locked to the folded piece 5, and the spine cover 3 is inadvertently pulled out from the cover 1. To prevent that. Then, the binding tool body 8 raises the operation unit 31 so that the notch 43 of the binding tool body 8 and the insertion notch 13 of the binding flap 4 of the front cover 1 are opened so that they can be inserted into each other.

  Next, the two binding foot main bodies 61 pulled out from the main attachment hole 23 of the binding flap 6 of the back cover 2 are inserted into the insertion notch 13 of the binding flap 4 of the front cover 1 from the cut side. . Then, the operation part 31 of the binding tool body 8 is pushed down, and the first binding foot press part 34 and the second binding foot press part 35 are slid outward. Then, the binding foot main body 61 fits into the notch 39 of the first binding foot pressing portion 34 and the second binding foot pressing portion 35 and bends outward to form a concave groove 66 formed on the upper surface of the binding foot main body 61. Engages with a locking projection 46 provided on the upper surface of the base substrate 42. When the operation unit 31 is completely pushed down, the binding foot main body 61 is locked with its tip directed outward.

  In the present invention, when the amount of paper sheets to be bound during use of the file increases, it can be dealt with by shifting the position of the mounting hole where the locking portion 62 of the binding foot 9 is locked. That is, as shown in FIG. 11, by engaging the locking portion 62 with the second mounting hole 22, the main mounting hole of the binding flap 6 is the length of the first mounting hole 21 and the second mounting hole 22. The binding foot main body 61 drawn from 23 can be lengthened.

  As a method of moving the locking portion 62 of the binding foot 9 from the first mounting hole 21 to the second mounting hole 22, first, the center of the operation portion 31 of the binding tool body 8 is lifted up to the first binding foot press portion 34 and The second binding foot press part 35 is relatively moved inward, and the binding foot main body 61 is unlocked. Next, the engaging portion 62 that is exposed on the side of the back cover 2 that does not come into contact with the sheets of the binding flap 6 is pulled out slightly. Thereafter, the latching blades 64 of the latching portion 62 are sandwiched and pressurized from both sides, and the leading end portions of the latching blades 64 are fitted into the first mounting holes 21. Thereafter, when the front end of the binding foot main body 61 is pulled, the locking portion 62 moves through the first mounting hole 21 to the side in contact with the paper sheets of the binding flap 6, and the binding foot main body enters the second mounting hole 22. 61 base locks.

  In this way, by increasing the length of the binding foot main body 61 drawn from the main attachment hole 23, the number of sheets that can be sandwiched can be increased, and the spine cover 3 corresponding to the thickness of the sheets. By pulling out, the width of the spine 3 can be adjusted freely. The change of the length of the binding foot main body 61 to be pulled out and the withdrawal of the spine cover 3 from the cover 1 can be easily performed in a state where sheets are bound in the file.

  In the present invention, after the paper sheet P is bound by the binding tool, the paper sheet P can be rebound using the binding string B, and the binding tool body 8 and the binding foot 9 attached to the file can be removed. . When the amount of paper sheets to be bound is determined, by binding the paper sheets P with the binding string B instead of the binding tool, the removed binding tool body 8 and the binding foot 9 can be reused for another file, and the binding is performed. The thickness of the tool body 8 can be reduced to reduce the number of file storage locations.

  As a method of binding the paper sheet P with the binding string B, first, the operation unit 31 of the binding tool main body 8 is started, the locking of the binding foot main body 61 is released, and as shown in FIG. The binding portion 9 of one binding foot 9 locked in the first attachment hole 21 of the binding flap 6 on the cover 2 is pinched and the binding foot 9 is pulled out. Next, the front end of the binding string B is inserted into the main attachment hole 23 and pulled out from the binding flap 4 side of the cover 1. Thereafter, as shown in FIG. 12B, the other binding leg 9 is similarly pulled out, and the other end of the binding string B is inserted into the main attachment hole 23 and pulled out from the binding flap 4 side of the cover 1.

  Next, although not shown, the binding tool body 8 attached to the binding flap 4 of the front cover 1 is removed, and the binding flap 6 of the paper sheet P and the back cover 2 is removed as shown in FIG. The back cover 3 is pulled out with one hand, and the folded piece 5 provided at the base of the binding flap 4 of the cover 1 inserted in the spine insertion part 10 of the cover 1 is pulled out. Thereafter, as shown in FIG. 13B, the pulled-back folded piece 5 is raised and brought into contact with the binding flap 4.

  Thereafter, as shown in FIG. 14A, the leading end of the binding string B is inserted into the third through hole 14 of the corresponding folded piece 5 in a state where the folded piece 5 is raised. After that, as shown in FIG. 14B, the spine cover 3 is again inserted into the opening of the front cover 1, and the width of the spine cover 3 is adjusted to be equal to the thickness of the paper sheet P. The binding flap 1 of 1 is brought into contact with the paper sheet P to tie both ends of the binding string B.

  By the above operation, after binding by the binding tool, the binding sheet B is re-stitched by the binding string B, so that the binding tool body 8 and the binding foot 9 can be used with different files.

  As another aspect of the present invention, as shown in FIG. 15, the first mounting holes 21 can be arranged as two first mounting holes 21. For example, as shown in FIG. 15A, the second mounting hole 22 and the main mounting hole 23 are formed symmetrically on the outer sides of the two first mounting holes 21, and the binding foot 9 is connected to the first mounting hole 21. Is inserted through the second mounting hole 22 and the main mounting hole 23, and the locking portion 62 is locked to the first mounting hole 21. Further, as shown in FIG. 15B, the two first mounting holes are arranged outside, and the second mounting hole 22 and the main mounting hole 23 are formed symmetrically inside the first mounting hole. Then, the binding foot 9 is inserted from the first mounting hole 21 to pass through the second mounting hole 22 and the main mounting hole 23, and the locking portion 62 is locked to the first mounting hole 21. In either case, the positions of the two binding holes provided in the paper sheet P and the main attachment hole 23 are made to coincide with each other. The binding foot 9 has a length slightly shorter than the length from the first mounting hole 21 to the second mounting hole 22 and the end of the file on the main mounting hole 23 side. By attaching, it is possible to make a file that can cope with an increase or decrease in the amount of paper sheets P.

It is a figure which shows the file provided with the binding leg as 1st Example of this invention. It is a perspective view of the back cover of the file of FIG. It is a perspective view of the front cover of the file of FIG. It is a figure which shows the usage condition of the file of FIG. It is AA 'sectional drawing in FIG. It is a perspective view of the binding leg of this invention. (A) is a top view of the binding tool main body used for 1st Example of this invention, (b) is a bottom view of this binding tool main body. It is a perspective view which shows the upper body which lifted the operation part of the binding tool main body of FIG. It is a figure explaining attachment to the front cover of the binding tool main body of FIG. It is a figure explaining attachment of a binding leg. It is a figure which shows the 2nd attachment state which latches a binding leg. It is a figure explaining the process of binding a string after pulling out a binding leg. It is a figure explaining the process of binding a string after pulling out a binding leg. It is a figure explaining the process of binding a string after pulling out a binding leg. It is a figure explaining the attachment state of the attachment hole as a 2nd and 3rd Example, and the binding leg to this attachment hole.

Explanation of symbols

1 Front cover 2 Back cover
DESCRIPTION OF SYMBOLS 3 Back cover 4 Flap for binding 5 Folding piece 6 Flap for binding 7 Fall prevention part 8 Binding tool main body 9 Binding leg 10 Back cover insertion part 11 1st through-hole 12 2nd through-hole 13 Insertion notch 14 3rd through-hole 21 First mounting hole 22 Second mounting hole
23 Main mounting hole 31 Operation section 32 First operation section
33 Second operation portion 34 First binding foot press portion 35 Second binding foot press portion 36 Main hinge portion 37 Auxiliary hinge portion 38 Hinge piece 39 Notch 40 Slide engagement piece 41 Base member 42 Base substrate 43 Notch 44 First Lock hole 45 Second lock hole 46 Lock projection 51 First support wall 52 Second support wall 53 Third support wall 54 First lock piece 55 First lock piece 56 Second lock piece 57 Second Locking piece
61 Binding foot main body 62 Locking portion 63 Locking base portion 64 Locking blade 65 Small protrusion 66 Concave groove 67 Cut groove B Binding string P Paper sheet

Claims (5)

A pair of file binding legs having flexibility to be inserted through two binding holes provided on a paper sheet,
A belt-shaped binding foot main body, and a locking portion including a locking base provided in a direction substantially orthogonal to the base end of the binding foot main body, and a locking blade provided in parallel to the binding foot main body from both ends of the locking base. Formed with
A plurality of concave grooves are formed on the upper surface of the binding foot main body, and a cut groove is provided in the width direction at the base of the binding foot main body, and on the outer side of the tip of the locking blade of the locking portion. Is a binding foot for files, characterized in that each has a small protrusion. Consists of a front cover and a back cover, each with a binding flap on one side of the front cover and back cover,
A spine cover is continuously connected to one of the front cover and the back cover via a binding flap, and a binding flap is provided on the other cover so that a side end portion of the spine can be inserted. A spine insertion part with an opening is formed on the provided side,
The binding flap of either the front cover or the back cover has two through holes or insertion notches that match the positions of the two binding holes provided on the paper sheet, and the binding tool body can be attached and detached. Can be attached,
The binding flap on the other cover has two main mounting holes that coincide with the two binding hole positions provided on the paper sheet and a pair of binding legs that pass through the locking base of the binding legs. The possible first mounting hole and second mounting hole are formed on the same line,
The file binding leg according to claim 1 is passed through the first mounting hole, the second mounting hole, and the main mounting hole, and each locking portion is locked by the first mounting hole or the second mounting hole. The length of the binding foot is slightly shorter than the length from the first attachment hole to the file end on the main attachment hole side. The first mounting hole is an elongated hole having a substantially rectangular shape having a width substantially equal to the width of the locking base and a length substantially equal to the length of the locking blade, and at one end in the length direction from the width of the locking base. Also formed as a through hole with a small width notch,
Two first mounting holes are arranged close to the approximate center of the binding flap so that the notches of the first mounting holes face outward, one on each outer side of the two first mounting holes. The file according to claim 2, wherein each of the second mounting holes is arranged with one main mounting hole outside each of the second mounting holes. The first mounting hole is a long hole having a substantially rectangular shape having a width substantially equal to the width of the locking base and a length substantially equal to the length of the locking blade, and is longer than the width of the locking base at both ends in the length direction. Is formed as a single through hole with a small width notch,
The first mounting holes are arranged at substantially the center of the binding flap, one second mounting hole is provided on both outer sides of the first mounting hole, and one main mounting is provided on each outer side of the second mounting hole. The file with adjustable back width according to claim 2, wherein the holes are arranged respectively.   The back cover is provided with a folded-off prevention part at the side edge of the spine cover, and two insertion cuts corresponding to the positions of the two binding holes provided in the paper sheets are provided in the binding flap of the cover cover on which the spine cover insertion part is formed. A notch is formed and a folded piece is provided at a base end portion thereof, and two folded holes are formed in the folded piece so as to coincide with two binding hole positions provided in a paper sheet. The file which can adjust the back width according to any one of 2 to 4.

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