JP5590143B2 - Binding tool - Google Patents

Description

  The present invention relates to a binding tool for binding paper sheets.

  A ring binding tool (see, for example, the following patent document) capable of binding paper sheets such as loose leaves and clear book refills is known. In this type of binding tool, an annular binding rod can be opened and closed by a rotating operation, and paper sheets can be arbitrarily replaced.

  Many ring binding tools have a structure in which a pair of binding rod members elongated in the axial direction are connected via a hinge so as to be relatively rotatable. Each binding rod member supports a large number of binding rod elements having a partial arc shape. A cylindrical bearing is provided intermittently along the axial direction on one binding rod member, and a cylindrical bearing is also provided intermittently along the axial direction on the other binding rod, and both bindings are provided. The bearings of the flange members are arranged on concentric shafts (one bearing is positioned between the other bearings), and a thin rod passing through each bearing is inserted to constitute a hinge.

  If it is such, it will give a user the feeling that the row of bearings of the binding rod member is uneven. In particular, when the inner paper is bound and used as a ring notebook, the bearing is exposed on the back side of the notebook, and the touch is not always good.

JP 2010-120367 A

  An object of the present invention is to provide a binding tool that can be easily switched between an open state and a closed state of a binding rod and has a good touch.

  In the present invention, a pair of binding rod members that are capable of relative rotation around the axis via a hinge and that open and close the binding rod through a rotation operation, and cover the shaft of the hinge and the binding rod member. A lock position that is slidable along the axial direction, has a stopper that prohibits the binding rod member from rotating in a direction to open the binding rod, and the stopper contacts a predetermined portion of the binding rod member And an operating member that can selectively take an unlock position where the stopper does not contact a predetermined portion of the binding rod member even when the binding rod member is rotated.

  This reduces the chance that the hinge axis directly touches the user's finger. That is, the possibility of giving the user a feeling that the axis of the hinge is uneven is reduced. Then, the operating member can be slid in the axial direction to switch the binding rod between the open state and the closed state.

  More specifically, the hinge shaft has a substantially cylindrical outer periphery, and the operation member engages with the hinge shaft so as to hold the hinge shaft.

  Each of the pair of binding rod members has a substantially cylindrical outer periphery and is provided with a shaft body that serves as a shaft of the hinge, and the operation member can be rotated relative to each other with the shaft bodies arranged in series. If it is to be held, a thin bar penetrating the shaft body of both binding rod members becomes unnecessary.

  If a convex portion is formed on one of the end surfaces facing each other of the shafts and a concave portion for receiving the convex portion is formed on the other, and an engagement structure between the convex portion and the concave portion is configured, both bindings are performed. The integrity of the shaft body of the flange member is improved.

  The operating member includes side walls that are arranged side by side and a bottom wall that connects both side walls, and the shaft of the hinge is accommodated in an inner space surrounded by the side walls and the bottom wall, and a notch is formed at an edge of the side wall. If a portion adjacent to the notch is used as the stopper and the predetermined portion of the binding rod member is accommodated in the notch when the operation member is in the unlocked position, the binding is performed by the binding rod member and the operation member. The basic structure of the tool is completed, and the number of parts can be reduced.

  Further, if the elastic biasing member that elastically biases the operation member in the direction of displacing from the unlock position toward the lock position is provided, the binding rod is also closed using the elastic biasing force. Can be reliably maintained, and the possibility that the bound paper sheets will fall off unexpectedly is reduced.

  According to the present invention, it is possible to realize a suitable binding tool that can be easily switched between an open state and a closed state of the binding rod and is easy to touch.

The perspective view which shows the ring notebook using the binding tool in one Embodiment of this invention. The whole perspective view of the binding tool of the embodiment. The perspective view which shows the binding rod member of the binding tool of the embodiment. The perspective view which shows the operation member of the binding tool of the embodiment. The principal part disassembled perspective view of the binding tool of the embodiment. The principal part perspective view of the binding tool of the embodiment. The principal part perspective view of the binding tool of the embodiment. The figure which shows the shape of the arm part (protrusion part) and notch in the binding tool of the embodiment. The longitudinal cross-sectional view of the binding tool of the embodiment. The principal part top view of the binding tool of the embodiment. The principal part top view of the binding tool of the embodiment. The AA line cross-sectional view of the binding tool of the embodiment. The BB line cross-sectional view of the binding tool of the embodiment. The CC cross-sectional view of the binding tool of the embodiment. DD line horizontal sectional view of the binding tool of the embodiment. The AA line cross-sectional view of the binding tool of the embodiment. The BB line cross-sectional view of the binding tool of the embodiment. The CC cross-sectional view of the binding tool of the embodiment. DD line horizontal sectional view of the binding tool of the embodiment. The whole perspective view of the binding tool in one Embodiment of this invention. The perspective view which shows the binding rod member of the binding tool of the embodiment. The perspective view which shows the operation member of the binding tool of the embodiment. The principal part disassembled perspective view of the binding tool of the embodiment. The principal part perspective view of the binding tool of the embodiment. The principal part perspective view of the binding tool of the embodiment. The figure which shows the shape of the arm part (protrusion part) and notch in the binding tool of the embodiment. The longitudinal cross-sectional view of the binding tool of the embodiment. The principal part top view of the binding tool of the embodiment. The principal part top view of the binding tool of the embodiment. The AA line cross-sectional view of the binding tool of the embodiment. The BB line cross-sectional view of the binding tool of the embodiment. The CC cross-sectional view of the binding tool of the embodiment. DD line horizontal sectional view of the binding tool of the embodiment. The AA line cross-sectional view of the binding tool of the embodiment. The BB line cross-sectional view of the binding tool of the embodiment. The CC cross-sectional view of the binding tool of the embodiment. DD line horizontal sectional view of the binding tool of the embodiment. The principal part perspective view which shows the edge part of the operation member of the binding tool of the embodiment. The principal part perspective view which shows the edge part of the binding rod member of the binding tool of the embodiment. The principal part plane sectional view which shows the edge part of the binding tool of the embodiment. The principal part plane sectional view which shows the edge part of the binding tool of the embodiment.

  <First Embodiment> An embodiment of the present invention will be described with reference to the drawings. The binding tool 0 of the present embodiment shown in FIGS. 1 to 19 is a ring binding tool provided with a plurality of binding hooks that can be opened and closed. The binding fold is inserted into a binding hole that has been made in the paper sheet S in advance, and binds the paper sheet S.

  In particular, as shown in FIG. 1, by binding a plurality of leaves or clear book refills (in addition, a front cover and a back cover) such as a cover sheet of a notebook, it can be used as a ring notebook. be able to. This ring notebook can be in a spread state where the page is opened at an angle of 180 °.

  The binding tool 0 of the present embodiment includes a first binding rod member 1 and a second binding rod member 2 that rotate relative to each other, and an open state / closed state of the binding rod supported by both binding rod members 1 and 2. The operating member 3 that is operated to switch the state and the coil spring 4 that is an elastic biasing member that elastically biases the operating member 3 are used as constituent members.

  The shape of the first binding rod member 1 is similar to the shape of the second binding rod member 2. The first binding rod member 1 includes a rod-like base 11 that is long in parallel with the axial direction, a binding rod element 12 that extends from the base 11, and a rotation of the binding rod member 1 that is separated from the base 11. A shaft body 13 serving as a center and an arm portion 14 connecting the shaft body 13 to the base 11 are provided. In this embodiment, these base | substrate 11, the binding rod element 12, the shaft body 13, and the arm part 14 are integrally molded by resin.

  A large number of binding rod elements 12 exist, and they are arranged along the axial direction. The individual binding rod elements 12 protrude straightly from the outer surface 112 of the base body 11 outward in the direction perpendicular to the axial direction, and are curved and rise from the outer end so as to draw an arc. The upper surface of the straight portion of the binding rod element 12 is substantially flush with the top surface 113 of the base body 11. The cross section of the curved portion of the binding rod element 12 has a flat shape slightly expanded in the axial direction, a substantially oval shape, or a substantially rounded square shape. The front end portion of the binding rod element 12 is notched like a joint.

  The shaft body 13 has a cylindrical outer periphery and extends along the axial direction. There are a plurality of shaft bodies 13 (in the example shown, about half the number of binding rod elements 12), which are arranged on a concentric shaft with a predetermined gap therebetween. The shaft body 13 is biased slightly inward from the base body 11 so that the axial center thereof is substantially flush with the inner surface 111 of the base body 11.

  A concave portion 131 is formed on one end surface of the shaft body 13, and a convex portion 132 is formed on the other end surface. The convex portion 132 is a hemispherical protrusion that overlaps the axial center of the shaft body 13. The concave portion 131 is a concave groove that extends outward from the axial center position of the shaft body 13 and reaches the outer periphery of the shaft body 13, i.e., opens outwardly. (View) It has a semi-cylindrical shape with a diameter equivalent to the diameter of the convex portions 132 and 232, and the groove width is substantially equal to the diameter of the convex portions 132 and 232. Furthermore, the inner end edge of the recess 131 is also in the shape of a semicircular arc having a diameter equivalent to the diameter of the protrusions 132 and 232 as viewed in cross section (or viewed from the axial direction).

  Two arm portions 14 exist for one shaft body 13, and both end portions along the axial center direction of the shaft body 13 are respectively joined to the base body 11. An inner side surface 141 that is continuous with the inner side surface 111 of the base body 11 in the arm portion 14 is inclined with respect to the inner side surface 111 of the base body 11. On the other hand, the outer side surface 142 of the arm portion 14 that is continuous with the outer surface 112 of the base body 11 is substantially flush with the outer surface 112 of the base body 11 and hangs down to a position that slightly protrudes from the bottom surface 114 of the base body 11. ing. As shown in FIG. 5 and the like, the projecting portion 143 on the outer side of the arm portion 14 has a curved surface shape in which both end edges along the axial direction take the outer side view R.

  The base body 11 has a cross-sectional shape in which a partially cylindrical concave curved surface 115 facing the outer peripheral surface of the shaft body 13 is formed so as to straddle the inner surface 111 and the bottom surface 114 of the square bar. Due to the concave curved surface 115, a slit-like gap 15 that forms a ring around the axis of the transverse sectional view is formed in a region sandwiched between the pair of arm portions 14 between the base body 11 and the shaft body 13. It is formed. In addition, at the portion of the base 11 that faces the gap between the plurality of shaft bodies 13, the corner where the inner side surface 111 and the concave curved surface 115 intersect is chamfered. The corner angle between the outer surface 112 and the top surface 113 of the base 11 is R.

  The corner angle between the inner side surface 111 of the base 11 and the end surface on one end side is cut off so as to be an inclined surface 116 that intersects the axial direction.

  The second binding rod member 2 has a rod-like base 21 that is as long as the base 11 on the first binding rod member 1 side, a binding rod element 22 that extends from the base 21, and a base 21 that is separated from the base 21. A shaft body 23 serving as a rotation center of the binding rod member 2 and an arm portion 24 connecting the shaft body 23 to the base body 21 are provided. The base body 21, the binding rod element 22, the shaft body 23, and the arm portion 24 are also integrally molded with resin.

  The binding rod element 22 is paired with the binding rod element 12 on the first binding rod member 1 side to form an annular binding rod. Each binding rod element 22 protrudes from the outer surface 212 of the base body 21 by going straight outward in a direction perpendicular to the axial direction, and is curved and rises so as to draw an arc from its outer end. The upper surface of the straight portion of the binding rod element 22 is substantially flush with the top surface 213 of the base body 21. The cross section of the curved portion of the binding rod element 22 has a flat shape slightly expanded in the axial direction, a substantially oval shape, or a substantially rounded square shape. The front end portion of the binding rod element 22 is notched like a joint.

  The shaft body 23 has a cylindrical outer periphery having substantially the same diameter as the shaft body 13 on the first binding rod member 1 side, and extends along the axial direction. A plurality of shaft bodies 23 exist, and they are arranged on a concentric shaft with a predetermined gap therebetween. These shaft bodies 23 are disposed so as to fit in the gaps between the plurality of shaft bodies 13 on the first binding rod member 1 side. The axial center direction dimension of the shaft body 23 on the second binding rod member 2 side is substantially equal to the gap of the shaft body 13 on the first binding rod member 1 side, and the shaft body 13 on the first binding rod member 1 side has the same dimension. The axial direction dimension is substantially equal to that of the gap of the shaft body 23 on the second binding rod member 2 side. The shaft body 23 is slightly inwardly biased from the base body 21 so that the axial center thereof is substantially on the same plane as the inner side surface 211 of the base body 21.

  A concave portion 231 is formed on one end surface of the shaft body 23, and a convex portion 232 is formed on the other end surface. The concave portion 231 accommodates the convex portion 132 of the shaft body 13 on the first binding rod member 1 side. Conversely, the convex portion 232 is inserted into the concave portion 131 of the shaft body 13 on the first binding rod member 1 side. The convex portion 232 is a hemispherical protrusion that overlaps the axial center of the shaft body 23. The concave portion 231 is a concave groove extending outward from the axial center position of the shaft body 23 and reaching the outer periphery of the shaft body 23, and the inner surface thereof has a diameter equivalent to the diameter of the convex sections 132 and 232 in the longitudinal section. It has a semi-cylindrical shape, and the groove width is substantially equal to the diameter of the convex portions 132 and 232. Further, the inner end edge of the recess 231 is also a semicircular arc having a diameter equivalent to the diameter of the protrusions 132 and 232 in cross section.

  The arm portions 24 are joined to the base body 21 at both end portions along the axial direction of the shaft body 23. An inner side surface 241 that is continuous with the inner side surface 211 of the base body 21 in the arm portion 24 is inclined with respect to the inner side surface 211 of the base body 21. On the other hand, the outer side surface 242 of the arm portion 24 that is continuous with the outer surface 212 of the base body 21 is substantially flush with the outer surface 212 of the base body 21 and hangs down to a position that slightly protrudes from the bottom surface 214 of the base body 21. ing. As shown in FIG. 8 and the like, the projecting portion 243 on the outer side of the arm portion 24 has a curved shape in which both end edges along the axial direction take the outer side view R.

  The base body 21 has a cross-sectional shape in which a partially cylindrical concave curved surface 215 facing the outer peripheral surface of the shaft body 23 is formed so as to straddle the inner side surface 211 and the bottom surface 214 of the square bar. Due to the concave curved surface 215, a slit-like gap 25 that forms a ring around the axis of the transverse sectional view is formed in a region between the pair of arm portions 24 between the base 21 and the shaft body 23. It is formed. In addition, at the portion of the base 21 that faces the gap between the plurality of shaft bodies 23, the corner where the inner side surface 211 and the concave curved surface 215 intersect is chamfered. The corner angle between the outer surface 212 and the top surface 213 of the base body 21 is R.

  The corner angle between the inner surface 211 of the base 21 and the end surface on one end side is cut off so as to be an inclined surface 216 that intersects the axial direction.

  A hook 26 is provided near the other end of the base 21 of the second binding rod member 2. The hook 26 is for supporting one end of the coil spring 4 and protrudes from the bottom surface 214 of the base body 21.

  The operation member 3 includes side walls 31 and 32 extending in parallel to the axial direction and a bottom wall 33 connecting the side walls 31 and 32. In the present embodiment, the side walls 31 and 32 and the bottom wall 33 are integrally formed with resin, and the side walls 31 and 32 and the bottom wall 33 form a substantially C-shaped or U-shaped peripheral wall. The total length of the operation member 3 is larger than that of the base bodies 11 and 21 of the binding rod members 1 and 2.

  Notches 311 and 321 are formed at a plurality of locations on the upper edge of each side wall 31 and 32. The number of notches 311 on the side wall 31 on one side is the same as the number of arm portions 14 of the first binding rod member 1, and the number of notches 321 on the side wall 32 on the other side is the arm portion of the second binding rod member 2. It is the same as the number of 24. The position of the notch 311 on the side wall 31 on one side corresponds to the position of the arm portion 14 of the first binding rod member 1, and the position of the notch 321 on the side wall 32 on the other side corresponds to the second binding rod member 2. This corresponds to the arrangement of the arm portions 24. Therefore, the notch 311 and the notch 321 are shifted in the axial direction. The opening width dimension along the axial direction of the notches 311 and 321 is slightly larger than the axial dimension of the arm portions 14 and 24. The lower ends of the cutouts 311 and 321 are inclined end surfaces that fall downward toward the outer side except for the vicinity of the inner side surfaces of the side walls 31 and 32, and are upward only in the vicinity of the inner side surfaces of the side walls.

  Further, the projections 312 and 322 are provided on the side walls 31 and 32 at locations that are offset in the axial direction from the locations where the notches 311 and 321 are formed. The protrusions 312 and 322 protrude in pairs from the inner side surfaces of the side walls 31 and 32 inward.

  The inner method of the side walls 31 and 32 is substantially equal to the diameter of the shaft bodies 13 and 23 of the binding rod members 1 and 2. The bottom wall 33 is a substantially partial cylinder having an inner diameter substantially equal to the diameter of the shaft bodies 13 and 23. Incidentally, the through-hole 331 formed in the bottom wall 33 immediately below the protrusions 312 and 322 is a die-cutting hole for forming the protrusions 312 and 322.

  The internal space surrounded by the peripheral walls 31, 32, 33 of the operation member 3 is closed at both ends along the axial direction of the operation member 3. One end of the operation member 3 serves as a handle 34 for the user to hold it. An expanding portion 35 is provided at a position adjacent to the handle 34. The expanding portion 35 is a block-like portion extending toward the other end of the operation member 3, and inclined surfaces 351, 352 facing both outer sides are formed on the tip side so as to form a wedge shape in plan view. . The inclined surfaces 351 and 352 of the expanding portion 35 intersect with each other with respect to the axial direction, and are substantially similar to the inclined surfaces 116 and 216 formed at one end of the bases 11 and 21 of the binding rod members 1 and 2. Parallel. The expanding portion 35 of the operation member 3 and one ends of the base bodies 11 and 21 of the binding binding members 1 and 2 constitute an operation force conversion mechanism described later.

  A hook 36 is provided near the other end of the operation member 3. The hook 36 is for supporting the other end of the coil spring 4 and faces the hook 26 provided on the second binding rod member 2 along the axial direction.

  In assembling the binding tool 0 of the present embodiment, first, the inner surface 111 of the base 11 of the first binding rod member 1 and the inner surface 211 of the base 21 of the second binding rod member 2 are brought into contact with or close to each other. The shaft body 13 of the first binding rod member 1 and the shaft body 23 of the second binding rod member 2 are arranged on a concentric axis. The convex portion 132 of the shaft body 13 is inserted into the concave portion 231 of the shaft body 23, and the convex portion 232 of the shaft body 23 is inserted into the concave portion 131 of the shaft body 13. The shaft bodies 13 and 23 of the both binding rod members 1 and 2 are arranged in an alternating manner in close proximity to each other or close to each other.

  And the operation member 3 is assembled | attached so that the shaft bodies 13 and 23 of the both binding rod members 1 and 2 may be held. That is, the shaft bodies 13 and 23 of both binding rod members 1 and 2 are fitted into the internal space surrounded by the side walls 31 and 32 and the bottom wall 33 of the operation member 3. As a result, the binding rod members 1 and 2 can rotate about the shaft bodies 13 and 23 as rotation axes. In addition, the operation member 3 can slide along the shaft bodies 13 and 23 in the axial direction. The protrusions 312 and 322 on the inner surfaces of the side walls 31 and 32 of the operation member 3 engage with the shaft bodies 13 and 23 of the binding rod members 1 and 2, and prevent the shaft bodies 13 and 23 from escaping from the operation member 3. . The shaft bodies 13 and 23 of the binding rod members 1 and 2 are covered with the operation member 3.

  It should be noted that both ends of the coil spring 4 are respectively hooked on the hook 26 provided on the second binding rod member 2 and the hook 36 provided on the operation member 3 in advance. By fitting the shafts 13 and 23 of the binding rod members 1 and 2 into the operation member 3, the hook 36 provided on the operation member 3 is further on the other end side than the hook 26 provided on the second binding rod member 2. Is positioned.

  The first binding rod member 1 and the second binding rod member 2 rotate relatively around the shaft centers of the shaft bodies 13 and 23. Through the turning operation, the annular binding rod constituted by the binding rod element 12 and the binding rod element 22 can be opened and closed. As shown in FIGS. 6 and 10 and the like, when the binding rod is closed, the tip of the binding rod element 12 on one side and the tip of the binding rod element 22 on the other side are axially aligned like a joint structure. The paper sheets S that overlap in the direction and are bound to the binding rod are prevented from being pulled out. As shown in FIGS. 7, 11, etc., in a state where the binding rod is opened, the leading ends of both binding rod elements 12, 22 are separated from each other, and the paper sheet S is allowed to be extracted.

  The operation member 3 is relatively displaced in the axial direction with respect to the binding rod members 1 and 2, and can selectively take the lock position shown in FIG. 10 and the unlock position shown in FIG. When the operation member 3 is in the locked position, the notch 311 formed in the side wall 31 on one side is displaced in the axial direction with respect to the arm portion 14 of the binding rod member 1 on the same side, and the side wall 32 on the other side. The notch 321 formed in the above is also displaced in the axial direction with respect to the arm portion 24 of the binding rod member 2 on the same side. Therefore, as shown in FIGS. 12 to 15, even if both the binding rod members 1, 2 are rotated in the direction to open the binding rod, the arm portions 14, 24 remain on the side walls 31, 32 of the operation member 3. It will collide with the edge of this and cannot be rotated. In other words, the uncut end edges of the side walls 31 and 32 of the operation member 3 serve as stoppers and prohibit the opening of the binding rod.

  Further, at this time, the base 11 of the first binding rod member 1 and the base 21 of the second binding rod member 2 are in a state where the inner side surfaces 111 and 211 are in contact with or close to each other. The expanding portion 35 provided on one end side of the operation member 3 does not necessarily contact one end of the base bodies 11 and 21 of the binding binding members 1 and 2 (although they are close to each other). The hook 36 provided on the operation member 3 is located relatively close to the hook 26 provided on the second binding rod member 2, and the coil spring 4 hung on both the hooks 26 and 36 does not exert tension.

  In turn, when the operating member 3 is slid from the locked position toward the unlocked position, the position along the axial direction of the notch 311 formed in the side wall 31 on one side is the same as that of the binding rod member 1 on the same side. The position along the axial direction of the notch 321 formed in the side wall 32 on the other side also matches the arm portion 24 of the binding rod member 2 on the same side. Accordingly, the arm portions 14 and 24 can enter the notches 311 and 321. In addition, the gaps 15 and 25 sandwiched between the pair of arms 14 and 24 connected to the same shaft portions 131 and 23 are sandwiched between the pair of notches 311 and 321 in the side walls 31 and 32 of the operation member 3. You can also enter the part. As a result, as shown in FIGS. 16 to 19, it is allowed to open the binding rod by relatively rotating both the binding rod members 1 and 2.

  At the same time, in the process in which the operating member 3 is displaced from the locked position to the unlocked position, the inclined surfaces 351 and 352 of the expanding portion 35 provided on one end side of the operating member 3 cause the bases 11 of both binding rod members 1 and 2. , 21 is in contact with the inclined surfaces 116, 216 formed at one end of the substrate 21, and further, the base members 11, 21 are pushed away from each other. Finally, the expanded portion 35 of the operation member 3 enters between the inner side surfaces 111 and 211 of the base bodies 11 and 21 of both binding rod members 1 and 2. That is, the expanding portion 35 and one end of the bases 11 and 21 function as an operating force conversion mechanism, and the operating force that slides the operating member 3 in the axial direction is set in the direction in which the binding rod members 1 and 2 open the binding rod. Convert to turning force.

  Generally speaking, by displacing the operating member 3 from the locked position to the unlocked position, the stopper is retracted from the arms 14 and 24 of the binding binding members 1 and 2 along the axial direction, while the expansion portion 35 spreads both the binding rod members 1 and 2 and opens the binding rod. Further, since the hook 36 provided on the operation member 3 moves away from the hook 26 provided on the second binding rod member 2 due to the displacement of the operation member 3, the coil spring 4 hung on both the hooks 26, 36 is stretched. Demonstrate tension.

  While the binding rod is opened, an elastic urging force in a direction to displace the operation member 3 from the unlocked position toward the locked position, that is, the tensile tension of the coil spring 4, works. Since the portions 14 and 24 engage with the opening edges of the notches 311 and 321 of the side walls 31 and 32, the operation member 3 is maintained in the unlocked position. In this state, when the user performs an operation of gripping and closing the binding rod elements 12 and 22 with fingers, the binding rod members 1 and 2 rotate in a direction in which the binding rod members 1 and 2 are close to each other. It escapes from the notches 311 and 321 of the side walls 31 and 32. Therefore, the operation member 3 is allowed to return to the lock position.

  Since the bases 11 and 22 of the binding rod members 1 and 2 are long, even if a portion of a large number of binding rods are picked up and closed, twisting occurs between the portion and other portions, and the binding is performed. There is a possibility that the entire scissors members 1 and 2 may not rotate in the direction of closing the binding scissors. However, the operation member 3 that is elastically biased tends to be displaced toward the lock position, and the force is applied to the arm portions 14 of the binding rod members 1 and 2 through the opening edges of the notches 311 and 321 of the side walls 31 and 32. Since it is going to push 24 back inward, the twist of the base | substrates 11 and 21 is suppressed, the binding hook members 1 and 2 whole rotate, and all the binding hooks can be closed simultaneously.

  According to this embodiment, a pair of binding rod members 1 and 2 that are capable of relative rotation around a predetermined axis and that open and close the binding rod through the rotation operation, and the binding rod members 1 and 2 An operation member 3 that is capable of relative displacement, and that can selectively take a lock position that prohibits the binding rod members 1 and 2 from rotating in a direction to open the binding rod and an unlock position that allows the binding rod; The binding rod member is interposed between the binding rod members 1 and 2 and the operation member 3, and an operation force for displacing the operation member 3 from the locked position toward the unlocked position is indicated by the binding rod member. Since the binding tool 0 including the operation force conversion mechanism that converts the force to rotate in the opening direction is configured, the binding rod can be opened by an operation of displacing the operation member 3 to the unlock position. Therefore, even if there are a large number of binding folds, the operation of opening them all at once is easy and highly convenient.

  The operation member 3 is provided with an expanding portion 35 that is inserted between the binding rod members 1 and 2 and pushes between them in the process in which the operation member 3 is displaced from the locked position to the unlocked position. Since the operating force conversion mechanism is configured with the expanded portion 35 as an element, the number of parts does not increase easily, which is advantageous in terms of cost.

  The operating member 3 is slidable along the axial direction, and the expanding portion 35 has inclined surfaces 351 and 352 that intersect the sliding direction of the operating member 3, and the inclined surface 351, Since it is in contact with the binding rod members 1 and 2 via 352 and pushes between the binding rod members 1 and 2, the structure is simple and the risk of failure is reduced.

  The binding rod members 1 and 2 extend along the axial direction and are provided with a plurality of binding rods arranged along the same direction, and the expanding portion 35 includes the binding rod member 1, 2 is inserted between the two binding rod members 1 and 2 from one end side, the operating force conversion mechanism can be arranged not at the middle portion of the binding tool 0 but at the end portion. Therefore, the assembly work of the binding tool 0 does not become difficult.

  Since the elastic urging member 4 that elastically urges the operation member 3 in the direction to displace the operation member 3 from the unlock position toward the lock position is provided, a spring that elastically urges the binding rod in the turning direction to close the binding rod. Is unnecessary. The degree of freedom of arrangement of the binding rod member of the elastic biasing member 4 is also high.

  The operating member 3 is provided with a stopper that prohibits the binding rod members 1 and 2 from rotating in a direction to open the binding rod, and the stopper is moved when the operating member 3 is in the locked position. While contacting the predetermined portions 14 and 24 of the binding rod members 1 and 2, while the operating member 3 is in the unlocked position, the stopper remains on the predetermined portions 14 and 24 of the binding rod member even if the binding rod members 1 and 2 are rotated. Do not touch. Since the basic configuration of the binding tool 0 is completed by the binding rod members 1 and 3 and the operation member 3, the number of parts is reduced.

  In addition, according to the present embodiment, the pair of binding rod members 1 and 2 that can be relatively rotated around the axis via the hinge and open and close the binding rod through the pivoting operation, and the shaft 13 of the hinge. 23, and a stopper that is slidable along the axial direction with respect to the binding rod members 1 and 2 and prohibits the binding rod members 1 and 2 from rotating in a direction to open the binding rod. A locking position where the stopper comes into contact with a predetermined portion of the binding rod members 1 and 2, and even if the binding rod members 1 and 2 are rotated, the stopper is fixed to the predetermined portions 14 and 24 of the binding rod members 1 and 2. Since the binding tool 0 including the operation member 3 that can selectively take the unlocking position that does not contact is configured, the possibility that the hinge shafts 13 and 23 are uneven is less likely to be given to the user. Not only can the operating member 3 be slid in the axial direction to switch the binding rod between the open state and the closed state.

  Since the shafts 13 and 23 of the hinge have a substantially cylindrical outer periphery, and the operation member 3 is engaged with the shafts 13 and 23 of the hinge so as to hold the hinge shafts 13 and 23, the operation member The shape of 3 is not complicated. In addition, the outer peripheral surface of the operation member 3 can be smoothed to improve the touch.

  Each of the pair of binding rod members 1 and 2 is provided with shaft bodies 13 and 23 that form a substantially cylindrical outer periphery and serve as a shaft of the hinge, and the shaft bodies 13 and 23 are arranged in series with the operation. Since the member 3 holds these so as to be capable of relative rotation, a long thin bar penetrating all the shaft bodies 13 and 23 is not necessary.

  Convex portions 132 and 232 are formed on one of the end faces of the shaft bodies 13 and 23 facing each other, and concave portions 131 and 231 for receiving the convex portions 132 and 232 are formed on the other. Since the engagement structure with the recesses 131 and 231 is configured, it contributes to the ease of assembling work of the binding tool 0, and the integrity as the binding tool 0 is enhanced, and any binding rod member 1 or 2 is dropped. The risk of doing so is also reduced.

  The operation member 3 includes side walls 31 and 32 arranged side by side and a bottom wall 33 connecting both side walls 31 and 32, and the hinge shafts 13 and 23 are disposed in an internal space surrounded by the side walls 31 and 32 and the bottom wall 33. Cutouts 311 and 321 are formed at the edges of the side walls 31 and 32, and a portion adjacent to the cutouts 311 and 321 (not cutout) is used as the stopper. Since the predetermined portions 14 and 24 of the binding rod members 1 and 2 are accommodated in the notches 311 and 321 when in the unlocked position, the basic configuration of the binding tool 0 is formed by the binding rod members 1 and 2 and the operation member 3. Is completed, leading to a reduction in the number of parts.

  An elastic urging member 4 that elastically urges the operation member 3 in a direction that displaces the operation member 3 from the unlock position toward the lock position, and a spring that urges elastically in a rotational direction that closes the binding rod. It is unnecessary. The degree of freedom of arrangement of the binding rod member of the elastic biasing member 4 is also high.

  <Second Embodiment> Next, another embodiment of the present invention shown in FIGS. 20 to 41 will be described. However, the same or equivalent components as those in the first embodiment described above are denoted by the same reference numerals, and the description thereof is omitted or simplified. Refer to the detailed description of the first embodiment for the components. 20 to 37 correspond to FIGS. 2 to 19 of the first embodiment, respectively.

  The binding tool 0 of the present embodiment is also a ring binding tool including a plurality of binding rods that can be opened and closed. The binding fold is inserted into a binding hole that has been made in the paper sheet S in advance, and binds the paper sheet S. Then, by binding a plurality of leaves or clear book refills S which are the middle sheets of the notebook, it can be used as a ring notebook. The ring notebook can be in a spread state where the page is opened at an angle of 180 °.

  Hereinafter, differences between the present embodiment and the first embodiment are listed. First, as shown in FIGS. 30 to 33 and the like, when viewed from the axial direction, the leading ends of the binding rod elements 12 and 22 in this embodiment are not curved, and are directed to the binding rod elements 21 and 11 of the other party. So as to extend linearly. The extending direction is substantially parallel to the top surfaces 113 and 213 of the base bodies 11 and 21. The point that the front ends of the binding rod elements 12 and 22 are stitched together is the same as in the first embodiment.

  Since the leading end portions of the binding rod elements 12 and 22 extend linearly, the page turning operation of the paper sheet S that is bound by inserting the binding rod elements 12 and 22 into the binding holes becomes smooth. In addition, the utility of facilitating the forming of the binding rod members 1 and 2 can be obtained. Each binding rod member 1 and 2 is a resin molded product. However, in the binding rod members 1 and 2 in the first embodiment, the leading end portions of the binding rod elements 12 and 22 and the other portions are molded together. However, there was a weakness that had to be two-color molded. In the present embodiment, when the binding rod members 1 and 2 are manufactured, a resin is injected into the mold from a position corresponding to the proximal end side of the binding rod elements 12 and 22 (or the bases 11 and 21 side) in the molding die. In addition, it is easy to spread the resin to a position corresponding to the tip side of the binding rod elements 12 and 22, and after the molding, the mold can be pulled out along the extending direction of the tip portion of the binding rod elements 12 and 22. Become.

  Next, the operation member 3 in the present embodiment is different in some details from the operation member 3 in the first embodiment. As shown in FIG. 30 thru | or 33 etc., the bottom wall 33 of the operation member 3 in this embodiment has a shape nearer flatness than that in the first embodiment. Further, the number of through holes 331 formed in the bottom wall 33 is smaller than that in the first embodiment.

  In the first place, the hole 331 in the bottom wall 33 is formed to remove a mold for forming the protrusions 312 and 322 protruding inward from the side walls 31 and 32. In the first embodiment, the protrusion 312 protruding from the side wall 311 on one side and the protrusion 322 protruding from the side wall 321 on the other side are always paired and the number of holes 331 is naturally increased. . On the other hand, as shown in FIGS. 34 and 37, in the present embodiment, the protrusion 312 and the protrusion 322 are not paired except for the end portion and the intermediate portion of the operation member 3, and both are in the axial direction. Are biased toward each other. In other words, the protrusions 312 and the protrusions 322 are provided alternately along the axial direction. Therefore, in this embodiment, the number of the holes 331 is reduced, and not only the strength of the operation member 3 is improved, but also the touch when the user touches the bottom wall 33 is improved.

  The handle 34 of the operation member 3 in this embodiment is cut shorter than the handle 34 in the first embodiment. 24, FIG. 25, FIG. 28, FIG. 29, and the like, the end edge of the planar handle 34 has an appearance that forms an almost teardrop-shaped edge together with the inclined surfaces 351 and 352 of the expanding portion 35. Presents. In addition, the dimension along the axial direction of the notch 311 of the side wall 31 closest to the handle 34 is made smaller than those of the other notches 311 and 321. The arm portion 14 of the binding rod member 1 that fits in the notch 311 when the binding rod is opened is also set so that the dimension along the axial direction is equal to or less than the same dimension.

  In the first embodiment, the internal space surrounded by the peripheral walls 31, 32, 33 of the operation member 3 is closed at both end portions along the axial direction. On the other hand, as shown in FIG. 38, in the present embodiment, no wall is provided at the other end side of the operation member 3, and the internal space is open on the other end side of the operation member 3. . This is advantageous for forming the operation member 3. That is, there are less restrictions on the direction in which the mold for molding the operating member 3 is pulled out (at the other end portion of the operating member 3, it is allowed to pull out the mold along the extending direction of the operating member 3, that is, the axial direction). Thus, the degree of freedom in design increases and the manufacturing cost can be reduced.

  Further, as shown in FIGS. 38 to 41, engaging portions 313 and 323 that protrude inward from the side walls 31 and 32 are formed on the other end side along the axial direction of the operation member 3. . On the other hand, an engaged portion 233 protruding outward is also formed on the outer peripheral surface of the shaft body 23 located on the most other end side along the axial direction of the binding rod member 2.

  The plan sectional view of FIG. 40 shows a state where the operating member 3 is in the locked position. When the operating member 3 is in the locked position, the engaging portions 313 and 323 protruding from the side walls 31 and 32 and the engaged portion 233 protruding from the shaft body 23 are separated from each other in the axial direction.

  On the other hand, the plane sectional view of FIG. 41 shows a state where the operation member 3 is in the unlock position. When the operating member 3 is slid from the locked position to the unlocked position, the binding rod members 1 and 2 rotate about the shafts 13 and 23 in the direction to open the binding rod and project from the side wall. The parts 313 and 323 approach toward the engaged part 233 protruding from the shaft body 23 and finally engage with the engaged part 233 beyond this.

  As already described, in a state where the operation member 3 is in the unlock position, the coil spring 4 having both ends supported by the hooks 26 and 36 is stretched to exert a tensile elastic force that pulls the operation member 3 back to the lock position. . The engaging portions 313 and 323 are engaged with the engaged portion 233 while giving a click feeling to the user's finger when engaging the engaged portion 233, so that the operation member 3 is not intended by the user. It works to suppress attempts to return to the locked position.

  The present invention is not limited to the embodiment described in detail above. If it enumerates, in the said embodiment, although the 1st binding rod member and the 2nd binding rod member were separate members, you may integrally form both through a resin hinge.

  The elastic biasing member is not limited to a coil spring. Other embodiments such as a leaf spring, a resin spring, and a rubber spring may be employed.

  It is also conceivable to interpose an elastic biasing member that generates a compression elastic force, that is, a compression coil spring, between one end side of the operation member and one end side of the binding rod member (the base thereof).

  In particular, the operating force conversion mechanism (the expanding portion on one end side of the operating member) is not an essential component. (After placing the operation member in the unlocked position) In order to open the binding rod by rotating both the binding rod members relative to each other, the binding rod element may be pulled through the bound paper sheets, or the binding may be performed. You may use the weight of the paper. Alternatively, a biasing member (such as a torsion spring) that elastically biases both binding rod elements in a rotational direction that separates them from each other may be mounted.

  Other specific configurations of each part can be variously modified without departing from the spirit of the present invention.

  The present invention can be applied to a binding tool for binding paper sheets.

DESCRIPTION OF SYMBOLS 0 ... Binding tool 1, 2 ... Binding rod member 12, 22 ... Binding rod 13, 23 ... Shaft part 3 ... Operation member 31, 32 ... Side wall 311, 321 ... Notch 33 ... Bottom wall 35 ... Expanding part 4 ... With elasticity Force member S ... paper sheets

Claims (5)

A pair of binding rod members that are rotatable relative to each other about the axis via a hinge, and that open and close the binding rod through a rotation operation;
The stopper covers the shaft of the hinge and is slidable along the axial direction with respect to the binding rod member, and the stopper prohibiting the binding rod member from rotating in a direction to open the binding rod, An operation member capable of selectively taking a lock position where the stopper contacts a predetermined portion of the binding rod member and an unlock position where the stopper does not contact the predetermined portion of the binding rod member even if the binding rod member is rotated;
And a binding tool that engages with the hinge shaft so that the operating member grips the hinge shaft . Each of the pair of binding rod members has a substantially cylindrical outer periphery and is provided with a shaft body that serves as a shaft of the hinge, and the operation member can be rotated relative to each other with the shaft bodies arranged in series. binding device of claim 1, wherein the holding. The one to form the convex portions of the mutually facing end surfaces of both shaft, forms a recess for receiving the projections on the other, according to claim 2 constituting the engagement structure between these convex and concave portions Binding tool. The operating member includes side walls that are arranged side by side and a bottom wall that connects both side walls, and the shaft of the hinge is accommodated in an inner space surrounded by the side walls and the bottom wall,
A notch is formed in an edge of the side wall, and a portion adjacent to the notch is used as the stopper, and when the operating member is in the unlock position, a predetermined portion of the binding rod member is accommodated in the notch. Or the binding tool of 3 . The binding tool according to claim 1, further comprising an elastic biasing member that elastically biases the operation member in a direction in which the operation member is displaced from the unlock position toward the lock position.

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