EP1657078B1 - Loose-leaf binding tool - Google Patents
Loose-leaf binding tool Download PDFInfo
- Publication number
- EP1657078B1 EP1657078B1 EP04027087A EP04027087A EP1657078B1 EP 1657078 B1 EP1657078 B1 EP 1657078B1 EP 04027087 A EP04027087 A EP 04027087A EP 04027087 A EP04027087 A EP 04027087A EP 1657078 B1 EP1657078 B1 EP 1657078B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- operation plate
- shaft
- plate
- binding
- rings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
- B42F13/00—Filing appliances with means for engaging perforations or slots
- B42F13/16—Filing appliances with means for engaging perforations or slots with claws or rings
- B42F13/20—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges
- B42F13/22—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two sections engaging each other when closed
- B42F13/24—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two sections engaging each other when closed wherein one section is in the form of fixed rods
Definitions
- the present invention relates to a loose-leaf binding tool, particularly to a loose-leaf binding tool of such a type that a fingerhold of an operation plate is pulled or pushed to thereby open/close binding rings.
- the present invention relates to a binding tool in which binding rings on one side are fixed to a fixed substrate, and the binding rings on the other side are fixed to a rotatable shaft.
- a binder ring mechanism has a plurality of binder rings for holding sheets of paper.
- Each binder ring includes a fixed section and a movable section. All of the movable binder ring sections are commonly mounted on a bolt.
- a lever arm is attached to one end of the bolt for movement of the lever arm to move the bolt and the binder ring sections mounted on the bolt.
- the bolt is movably mounted on a cover piece for both rotational and sliding movement of the bolt.
- a recess is formed in an endwall of the cover piece and the lever arm includes a latch member received in the recess to latch the lever arm in place when the binder rings are closed so to prevent inadvertent movement of the lever arm which might cause the binder rings to open.
- the cover piece has flaps extending diagonally outwardly therefrom for storing writing instruments in a ring binder in which the binder ring mechanism is installed.
- FIGS. 1(a), (b), (c) show a main part of this type of conventional loose-leaf binding tool.
- This binding tool is constituted of three members: an elongated fixed-side substrate 1 on which a plurality of first binding rings 3 are arranged at predetermined intervals; a rotatable shaft 2 on which a plurality of second binding rings 4 engageable with the first binding rings 3 are disposed and which is attached to one side portion of the substrate 1; and an operation plate 5 disposed along the shaft 2 on the bottom surface of the substrate 1 and movable in a longitudinal direction of the substrate 1.
- the operation plate 5 has a fingerhold 8 on a front end thereof.
- the fingerhold is operated forwards/backwards to thereby slide the operation plate 5 in the longitudinal direction of the binding tool, and accordingly the shaft 2 is rotated to close the binding rings 4 on a movable side toward the binding rings 3 on the fixed side or detach the rings 4 from the rings 3.
- a cam mechanism is formed on facing surfaces of the shaft and the operation plate. That is, a cam protrusion 6 protruding toward the operation plate 5 is disposed on the shaft, and a cam groove 7 into which the cam protrusion 6 fits is disposed in the operation plate 5 (conversely, there is also an example in which the cam protrusion is disposed on the operation plate and the cam groove is disposed in the shaft).
- the cam groove 7 is shaped in such a manner that when the operation plate 5 is pushed in a push-in position, the shaft 2 is rotated via the cam protrusion 6 to engage the second binding rings 4 with the first binding rings 3.
- the operation plate 5 is pushed in a pull-out position, the shaft 2 is rotated in an opposite direction via the cam protrusion 6 to thereby detach the second binding rings 4 from the first binding rings 3.
- the above-described problem can be solved by a mechanism in which an engagement plate or an elastic plate for urging a shaft supporting binding rings on a movable side in a closing direction of binding rings and which allows the plate to be operated only at the time of closing of the binding rings.
- a binding tool comprising: an elongated substrate on which a plurality of first binding rings are disposed at predetermined intervals; a shaft on which a plurality of second binding rings engageable with the first binding rings are disposed and which is attached to one side portion of the substrate; and a slidable operation plate disposed along the shaft on the bottom surface of the substrate, movable in a longitudinal direction of the substrate, and having a fingerhold on a front end thereof, the shaft being provided with a cam protrusion protruding toward the operation plate on at least one portion thereof, the operation plate being provided with a cam groove acting on the cam protrusion to thereby rotate the shaft, a shape of the cam groove being determined in such a manner that the shaft is rotated via the cam protrusion to thereby engage the second binding rings with the first binding rings, when the operation plate is pushed in a push-in position, and the shaft is rotated in an opposite direction via the cam protrusion to thereby detach the second
- the engagement plate when the operation plate is in the push-in position, the engagement plate is further pressed in a closing direction by the bottom-surface engaging portion of the operation plate. Therefore, the shaft further rotates, and a function of allowing the binding rings on the movable side to strongly collide and engage with the binding rings on the fixed side.
- the engaging portion of the operation plate bottom surface has an inclined surface in a portion adjacent to the cutout. Therefore, when the operation plate is slid into the push-in position, the engagement plate is guided by the inclined surface, receives a gradually increasing reactive force while shifting to the engaging portion, and is capable of applying a gradually increasing force to the binding rings via the shaft.
- the cutout has a rectangular shape opened on the side of the engagement plate to thereby produce a space for rotating the engagement plate centering on the shaft.
- the opposite ends of the cam groove comprise linear paths extending along the longitudinal direction of the operation plate, and an intermediate portion comprises an inclined path connected to the linear paths. Accordingly, a function of maintaining opened binding rings against an external force applied at the time of replacement/replenishment of a loose leaf.
- the binding rings are securely closed, and the loose leaf can be prevented from being held in the binding rings or being detached.
- a binding tool of the present invention comprises three members: a substrate 1; a shaft 2; and an operation plate 5. Any of the members can be made of a tough synthetic resin such as polypropylene or ABS.
- FIG. 2 is a plan view of the binding tool
- FIG. 3 is a front view
- FIG. 4 is a bottom plan view.
- the binding tool comprises: the fixed-side elongated substrate 1 on which a plurality of first binding rings 3 are disposed at predetermined intervals; the rotatable shaft 2 on which a plurality of second binding rings 4 engageable with the first binding rings 3 are integrally disposed and which is attached to one side portion of the substrate 1; and the slidable operation plate 5 disposed along the shaft 2 on the bottom surface of the substrate 1, movable in a longitudinal direction of the substrate 1, and having a fingerhold 8 on a front end thereof.
- Base portions of the second binding rings 4 extend through openings 18 formed at predetermined intervals in one-side edge portion of the substrate.
- a cam protrusion 6 protruding toward the operation plate 5 is disposed on at least one portion (four portions in an example shown in FIGS. 2 to 5) of the length of the shaft 2.
- a cam groove 7 acting on the cam protrusion 6 to thereby rotate the shaft 2 is disposed in the side surface of the operation plate 5.
- a shape of the cam groove 7 is determined in such a manner that the second binding rings 4 are allowed to collide and engage with the first binding rings 3, when the operation plate 5 is pushed in a push-in position, and the shaft 2 is rotated in an opposite direction to thereby detach the second binding rings 4 from the first binding rings 3, when the operation plate 5 is pulled in a pull-out position.
- FIG. 19 shows movement of a cam mechanism.
- the cam protrusion 6 protruding from the shaft 2 receives a rotation-direction component force of a force exerted by the upper wall surface of the cam groove 7, and rotates from A position which is an opened ring position to B position to close the binding rings 4 with respect to the binding rings 3 on a fixed side.
- the cam protrusion 6 receives an opposite-rotation-direction component force of a force exerted by the lower wall surface of the cam groove 7, and moves from B position which is a closed ring position to A position to open the closed rings.
- a stopper 13 extends into an elliptical hole 16 of the operation plate 5 from the substrate 1, and a push-in position and a pull-out position of a longitudinal direction of the operation plate 5 are determined in cooperation with the end face of the elliptical hole 16 in the longitudinal direction. Furthermore, a through hole is formed in the stopper 13, and serves as an attaching hole for attaching tool to a cover sheet.
- a bearing groove 17 of a longitudinal direction for supporting the shaft 2 is formed in a shaft-side edge portion of the operation plate 5.
- the bearing groove 17 constitutes a bearing together with a circular face of the back surface of the substrate 1, and rotatably supports the shaft 2.
- the second binding rings 4 protrude from openings 18 disposed at a certain interval in the substrate.
- the shaft 2 integrally has engagement plates 9 protruding toward the operation plate 5 on two portions (generally at least one portion in accordance with a length of the binding tool) along the longitudinal direction, and the operation plate 5 is provided with a rectangular cutout 10 and an engaging portion 14 on the bottom surface of the operation plate in a movement range corresponding to the engagement plate 9.
- the engagement plate 9 is cantilever-supported by the shaft 2, and therefore has an elastic function.
- the engaging portion 14 may be the bottom surface of the operation plate 5, or may be a concave face to such an extent that a thickness of the engagement plate 9 is contained as in the present example.
- a positional relation among the engagement plate 9, cutout 10, and engaging portion 14 is as follows.
- the engagement plate 9 When the operation plate 5 is in the push-in position, the engagement plate 9 is aligned with the engaging portion 14 on the bottom surface of the operation plate 5, and strongly engages with the engaging portion. Therefore, the engagement plate 9 rotates the shaft 2 in the closing direction of the binding rings by a reactive force from the engaging portion 14, and further a closing force is maintained even after the binding rings are closed.
- the cutout 10 is aligned in the position of the engagement plate 9 to thereby release the engagement plate 9. Accordingly, the shaft 2 is rotatable via the cam groove 7 and the cam protrusion 6 by movement of the operation plate 5 in the longitudinal direction.
- An inclined surface 15 is preferably disposed on the engaging portion 14 in a portion adjacent to the cutout 10 in such a manner that the engagement plate 9 can smoothly move among the cutout 10, the engaging portion 14, and the cutout 10.
- the engagement plate 9 When a pull tab is further pushed in from this state, the engagement plate 9 contacts the inclined surface 15 (see FIGS. 17 and 18) from the cutout 10, and is guided and finally engaged with the engaging portion 14. Accordingly, the engagement plate 9 receives a reactive force from the engaging portion 14 to further urge the shaft 2 and the binding rings 4 in the closing direction, and the binding rings 3, 4 are maintained in closed states.
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Abstract
Description
- The present invention relates to a loose-leaf binding tool, particularly to a loose-leaf binding tool of such a type that a fingerhold of an operation plate is pulled or pushed to thereby open/close binding rings.
- Various types have been proposed with regard to a loose-leaf binding tool of such a type that a fingerhold of an operation plate is pulled or pushed to thereby open/close binding rings. The present invention relates to a binding tool in which binding rings on one side are fixed to a fixed substrate, and the binding rings on the other side are fixed to a rotatable shaft.
- Document US-A-6 155 737 discloses a bolt action ring binder. A binder ring mechanism has a plurality of binder rings for holding sheets of paper. Each binder ring includes a fixed section and a movable section. All of the movable binder ring sections are commonly mounted on a bolt. A lever arm is attached to one end of the bolt for movement of the lever arm to move the bolt and the binder ring sections mounted on the bolt. The bolt is movably mounted on a cover piece for both rotational and sliding movement of the bolt. A recess is formed in an endwall of the cover piece and the lever arm includes a latch member received in the recess to latch the lever arm in place when the binder rings are closed so to prevent inadvertent movement of the lever arm which might cause the binder rings to open. In addition, the cover piece has flaps extending diagonally outwardly therefrom for storing writing instruments in a ring binder in which the binder ring mechanism is installed.
- FIGS. 1(a), (b), (c) show a main part of this type of conventional loose-leaf binding tool. This binding tool is constituted of three members: an elongated fixed-
side substrate 1 on which a plurality of first bindingrings 3 are arranged at predetermined intervals; arotatable shaft 2 on which a plurality of secondbinding rings 4 engageable with the first bindingrings 3 are disposed and which is attached to one side portion of thesubstrate 1; and anoperation plate 5 disposed along theshaft 2 on the bottom surface of thesubstrate 1 and movable in a longitudinal direction of thesubstrate 1. Theoperation plate 5 has afingerhold 8 on a front end thereof. The fingerhold is operated forwards/backwards to thereby slide theoperation plate 5 in the longitudinal direction of the binding tool, and accordingly theshaft 2 is rotated to close thebinding rings 4 on a movable side toward thebinding rings 3 on the fixed side or detach therings 4 from therings 3. - To transform linear movement of the
operation plate 5 into a rotary movement of the shaft, a cam mechanism is formed on facing surfaces of the shaft and the operation plate. That is, acam protrusion 6 protruding toward theoperation plate 5 is disposed on the shaft, and acam groove 7 into which thecam protrusion 6 fits is disposed in the operation plate 5 (conversely, there is also an example in which the cam protrusion is disposed on the operation plate and the cam groove is disposed in the shaft). Thecam groove 7 is shaped in such a manner that when theoperation plate 5 is pushed in a push-in position, theshaft 2 is rotated via thecam protrusion 6 to engage the secondbinding rings 4 with the first bindingrings 3. When theoperation plate 5 is pushed in a pull-out position, theshaft 2 is rotated in an opposite direction via thecam protrusion 6 to thereby detach the secondbinding rings 4 from the first bindingrings 3. - In this conventional example, since the movement of the
operation plate 5 in the longitudinal direction is smoothly transformed into the rotary movement of theshaft 2, there is not any resistance in the operation. Opposite end portions of the cam groove extend in the longitudinal direction. Therefore, there is an advantage that thebinding rings 4 on the movable side are stably fixed in closed and opened positions, when thecam protrusion 6 fits in the groove. - However, even when a positional relation between the cam protrusion and the cam groove is designed in such a manner that the binding rings disposed in the closed positions are tightly engaged, a portion is generated in which the engagement between the binding rings is not sufficient. A problem occurs that a part of loose-leaf is bitten by the ends of the binding rings by its own weight or an external force such as shock, and therefore there has been a demand for a binding tool which does not have such problem.
- According to the present invention, the above-described problem can be solved by a mechanism in which an engagement plate or an elastic plate for urging a shaft supporting binding rings on a movable side in a closing direction of binding rings and which allows the plate to be operated only at the time of closing of the binding rings.
- That is, according to the present invention, there is provided a binding tool comprising: an elongated substrate on which a plurality of first binding rings are disposed at predetermined intervals; a shaft on which a plurality of second binding rings engageable with the first binding rings are disposed and which is attached to one side portion of the substrate; and a slidable operation plate disposed along the shaft on the bottom surface of the substrate, movable in a longitudinal direction of the substrate, and having a fingerhold on a front end thereof, the shaft being provided with a cam protrusion protruding toward the operation plate on at least one portion thereof, the operation plate being provided with a cam groove acting on the cam protrusion to thereby rotate the shaft, a shape of the cam groove being determined in such a manner that the shaft is rotated via the cam protrusion to thereby engage the second binding rings with the first binding rings, when the operation plate is pushed in a push-in position, and the shaft is rotated in an opposite direction via the cam protrusion to thereby detach the second binding rings from the first binding rings, when the operation plate is pulled in a pull-out position, wherein the shaft has an engagement plate protruding toward the operation plate on at least one portion along the longitudinal direction, the operation plate has at least one cutout and an engaging portion on a bottom-surface side in a movement range corresponding to the engagement plate, the engagement plate engages with the engaging portion of the operation plate, when the operation plate is in the push-in position, and the cutout is aligned in the position of the engagement plate to thereby release the engagement plate, when the engagement plate moves to a position other than the push-in position.
- According to the constitution, when the operation plate is in the push-in position, the engagement plate is further pressed in a closing direction by the bottom-surface engaging portion of the operation plate. Therefore, the shaft further rotates, and a function of allowing the binding rings on the movable side to strongly collide and engage with the binding rings on the fixed side.
- In a preferable mode of the present invention, the engaging portion of the operation plate bottom surface has an inclined surface in a portion adjacent to the cutout. Therefore, when the operation plate is slid into the push-in position, the engagement plate is guided by the inclined surface, receives a gradually increasing reactive force while shifting to the engaging portion, and is capable of applying a gradually increasing force to the binding rings via the shaft.
- In a preferable mode of the present invention, the cutout has a rectangular shape opened on the side of the engagement plate to thereby produce a space for rotating the engagement plate centering on the shaft.
- In a preferable mode of the present invention, the opposite ends of the cam groove comprise linear paths extending along the longitudinal direction of the operation plate, and an intermediate portion comprises an inclined path connected to the linear paths. Accordingly, a function of maintaining opened binding rings against an external force applied at the time of replacement/replenishment of a loose leaf.
- According to the present invention, in the binding tool of such a type that the shaft supporting the binding rings is rotated by a sliding type operation plate, the binding rings are securely closed, and the loose leaf can be prevented from being held in the binding rings or being detached.
-
- FIG. 1 is a diagram showing a binding tool of such a type that a shaft supporting conventional binding rings is rotated by a sliding type operation plate;
- FIG. 2 is a plan view of the binding tool of the present invention;
- FIG. 3 is a front view of the binding tool of the present invention;
- FIG. 4 is a bottom plan view of the binding tool of the present invention;
- FIG. 5 is a B-B enlarged sectional view of FIGS. 3, 4 showing a cam mechanism of the binding tool of the present invention;
- FIG. 6 is an enlarged front view showing the cam mechanism of the binding tool of the present invention;
- FIG. 7 is an enlarged plan view showing the cam mechanism of the binding tool of the present invention;
- FIG. 8 shows a C-C enlarged sectional view of FIGS. 3, 4 showing a closed state of the binding rings;
- FIG. 9 is an enlarged plan view showing a state in which the binding rings on a movable side is opened in the same section;
- FIG. 10 is a D-D enlarged sectional view of FIGS. 3, 4;
- FIG. 11 is an A-A enlarged sectional view of FIGS. 3, 4 showing a structure of an engagement plate and an engaging portion of the present invention;
- FIG. 12 is an enlarged front view showing the structure of the engagement plate and engaging portion of the binding tool of the present invention;
- FIG. 13 is an enlarged bottom plan view showing the structure of the engagement plate and engaging portion of the binding tool of the present invention;
- FIG. 14 is a sectional view showing a shaft supporting the binding rings on the movable side and the engagement plate in the A-A enlarged sectional view of FIG. 1;
- FIG. 15 is a front view showing the operation plate of the binding tool of the present invention;
- FIG. 16 is a bottom plan view of the operation plate;
- FIG. 17 is a partially enlarged front view showing a cutout and engaging portion of the operation plate;
- FIG. 18 is a partially enlarged bottom plan view showing the cutout and engaging portion of the operation plate; and
- FIG. 19 is a diagram showing a function of a cam mechanism for opening/closing the binding rings, (a) is a sectional view of a rotation shaft, and (b) is a front view of the rotation shaft.
- An embodiment of the present invention will be described in detail with reference to FIGS. 2 to 19.
- A binding tool of the present invention comprises three members: a
substrate 1; ashaft 2; and anoperation plate 5. Any of the members can be made of a tough synthetic resin such as polypropylene or ABS. - In FIGS. 2 to 4 showing the whole binding tool according to the embodiment of the present invention, FIG. 2 is a plan view of the binding tool, FIG. 3 is a front view, and FIG. 4 is a bottom plan view. The binding tool comprises: the fixed-side
elongated substrate 1 on which a plurality of first bindingrings 3 are disposed at predetermined intervals; therotatable shaft 2 on which a plurality of secondbinding rings 4 engageable with the first bindingrings 3 are integrally disposed and which is attached to one side portion of thesubstrate 1; and theslidable operation plate 5 disposed along theshaft 2 on the bottom surface of thesubstrate 1, movable in a longitudinal direction of thesubstrate 1, and having afingerhold 8 on a front end thereof. Base portions of the secondbinding rings 4 extend throughopenings 18 formed at predetermined intervals in one-side edge portion of the substrate. - As shown in FIGS. 5 to 7, a
cam protrusion 6 protruding toward theoperation plate 5 is disposed on at least one portion (four portions in an example shown in FIGS. 2 to 5) of the length of theshaft 2. Acam groove 7 acting on thecam protrusion 6 to thereby rotate theshaft 2 is disposed in the side surface of theoperation plate 5. When theoperation plate 5 is pulled or pushed in a longitudinal direction of the binding tool by afingerhold 8, thecam protrusion 6 is relatively moved along thecam groove 7 to thereby rotate theshaft 2. Accordingly, the secondbinding rings 4 are opened/closed with respect to the firstbinding rings 3. A shape of thecam groove 7 is determined in such a manner that the secondbinding rings 4 are allowed to collide and engage with the firstbinding rings 3, when theoperation plate 5 is pushed in a push-in position, and theshaft 2 is rotated in an opposite direction to thereby detach the secondbinding rings 4 from the firstbinding rings 3, when theoperation plate 5 is pulled in a pull-out position. - FIG. 19 shows movement of a cam mechanism. When the
operation plate 5 is pushed and slid as shown by an arrow, thecam protrusion 6 protruding from theshaft 2 receives a rotation-direction component force of a force exerted by the upper wall surface of thecam groove 7, and rotates from A position which is an opened ring position to B position to close the bindingrings 4 with respect to the bindingrings 3 on a fixed side. Conversely, when theoperation plate 5 is pulled in a direction opposite to the arrow, thecam protrusion 6 receives an opposite-rotation-direction component force of a force exerted by the lower wall surface of thecam groove 7, and moves from B position which is a closed ring position to A position to open the closed rings. - It is to be noted that, as shown in FIGS. 4 and 8, a
stopper 13 extends into an elliptical hole 16 of theoperation plate 5 from thesubstrate 1, and a push-in position and a pull-out position of a longitudinal direction of theoperation plate 5 are determined in cooperation with the end face of the elliptical hole 16 in the longitudinal direction. Furthermore, a through hole is formed in thestopper 13, and serves as an attaching hole for attaching tool to a cover sheet. As shown in FIGS. 8 and 9, a bearinggroove 17 of a longitudinal direction for supporting theshaft 2 is formed in a shaft-side edge portion of theoperation plate 5. The bearinggroove 17 constitutes a bearing together with a circular face of the back surface of thesubstrate 1, and rotatably supports theshaft 2. The secondbinding rings 4 protrude fromopenings 18 disposed at a certain interval in the substrate. - Next, characteristic parts of the present invention will be described in detail with reference to FIGS. 11 to 18.
- The
shaft 2 integrally hasengagement plates 9 protruding toward theoperation plate 5 on two portions (generally at least one portion in accordance with a length of the binding tool) along the longitudinal direction, and theoperation plate 5 is provided with arectangular cutout 10 and an engagingportion 14 on the bottom surface of the operation plate in a movement range corresponding to theengagement plate 9. Theengagement plate 9 is cantilever-supported by theshaft 2, and therefore has an elastic function. The engagingportion 14 may be the bottom surface of theoperation plate 5, or may be a concave face to such an extent that a thickness of theengagement plate 9 is contained as in the present example. - A positional relation among the
engagement plate 9,cutout 10, and engagingportion 14 is as follows. When theoperation plate 5 is in the push-in position, theengagement plate 9 is aligned with the engagingportion 14 on the bottom surface of theoperation plate 5, and strongly engages with the engaging portion. Therefore, theengagement plate 9 rotates theshaft 2 in the closing direction of the binding rings by a reactive force from the engagingportion 14, and further a closing force is maintained even after the binding rings are closed. When theengagement plate 9 moves to a position other than the push-in position, thecutout 10 is aligned in the position of theengagement plate 9 to thereby release theengagement plate 9. Accordingly, theshaft 2 is rotatable via thecam groove 7 and thecam protrusion 6 by movement of theoperation plate 5 in the longitudinal direction. - An
inclined surface 15 is preferably disposed on the engagingportion 14 in a portion adjacent to thecutout 10 in such a manner that theengagement plate 9 can smoothly move among thecutout 10, the engagingportion 14, and thecutout 10. - Next, an operation of the binding tool of the present invention will be described. In a state of FIGS. 2 to 4, the
operation plate 5 is disposed in the push-in position, and the bindingrings fingerhold 8 is pulled with respect to thesubstrate 1, thecam groove 7 of theoperation plate 5 relatively moves with respect to theshaft 2. However, since thecam protrusion 6 is first in the linear path of a lower position on a fingerhold side (see FIG. 6). Therefore, thecam protrusion 6 does not move. However, when theoperation plate 5 is further pulled, thecam protrusion 6 moves to the inclined path from the linear path, theshaft 2 rotates together with thecam protrusion 6, and thecam protrusion 6 enters the linear path of a higher position from the inclined path, and the bindingrings 4 are completely opened (see FIG. 9). - Conversely, to close the binding rings, when the
operation plate 5 is pushed into thesubstrate 1 from the pull-out position, inverse movement occurs, theshaft 2 rotates in reverse, and the binding rings are completely closed. - When a pull tab is further pushed in from this state, the
engagement plate 9 contacts the inclined surface 15 (see FIGS. 17 and 18) from thecutout 10, and is guided and finally engaged with the engagingportion 14. Accordingly, theengagement plate 9 receives a reactive force from the engagingportion 14 to further urge theshaft 2 and the bindingrings 4 in the closing direction, and the bindingrings
Claims (6)
- A binding tool comprising:- an elongated substrate (1) on which a plurality of first binding rings (3) are disposed at predetermined intervals;- a shaft (2) on which a plurality of second binding rings (4) engageable with the first binding rings (3) are disposed, the shaft being attached to one side portion of the substrate (1) ;- and an operation plate (5) disposed along the shaft (2) on the bottom surface of the substrate (1), having a fingerhold (8) on the front end thereof,- the shaft (2) being adapted to be rotated to open and close the rings (4) through longitudinal pulling and pushing the operation plate (5),characterized in that- at least along one portion of the shaft (2) an engagement plate (9) is present which extends in the longitudinal direction of the shaft and which protrudes toward the operation plate (5),- in that the operation plate (5) has at least one cutout (10) and an engaging portion (14) on its bottom surface,- the cutout end the engaging portion being placed in a range corresponding to the movement range of the engagement plate (9), in such a way that the engagement plate (9) is engageable with the engaging portion (14) of the operation plate (5) when the operation plate (5) is in the push-in position,- and in that the engagement plate (9) is alignable with the cutout (10) thereby releasing the engagement plate (9) when the operation plate (5) moves to a position other than the push-in position.
- A binding tool according to claim 1, whereby the shaft (2) is being provided with a cam protrusion (6) protruding toward the operation plate (5) on at least one portion thereof,- the operation plate (5) being provided with a cam groove (7) acting on the cam protrusion (6) to thereby rotate the shaft (2),- the shape of the cam groove (7) being determined in such a manner that the shaft (2) is rotatable via the cam protrusion (6) to thereby engage the second binding rings (4) with the first binding rings (3), when the operation plate (5) is pushed in a push-in position,- and the shaft (2) is rotatable in an opposite direction via the cam protrusion (6) to thereby detach the second binding rings (4) from the first binding rings (3), when the operation plate (5) is pulled out position.
- The binding tool according to claim 1 or 2, wherein the engaging portion (14) has an inclined surface (15) for guiding the engagement plate (9) in a portion adjacent to the cut out (10).
- The binding tool according to any one of claims 1 to 3, wherein the cutout (10) has a rectangular shape.
- The binding tool according to any one of claims 2 to 4, wherein the opposite ends of the cam groove (7) comprise linear paths extending along the longitudinal direction of the operation plate (5), and an intermediate portion thereof comprises a path inclined with respect to the longitudinal direction of the operation plate connected to the linear paths.
- The binding tool according to any one of claims 1 to 5, wherein the engagement plate (9) is an elastic plate.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04027087A EP1657078B1 (en) | 2004-11-15 | 2004-11-15 | Loose-leaf binding tool |
AT04027087T ATE358599T1 (en) | 2004-11-15 | 2004-11-15 | BINDING ELEMENT FOR BINDING LOOSE LEAVES |
ES04027087T ES2283924T3 (en) | 2004-11-15 | 2004-11-15 | USEFUL TO BIND LOOSE LEAVES. |
DE602004005719T DE602004005719T2 (en) | 2004-11-15 | 2004-11-15 | Binding element for binding loose leaves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04027087A EP1657078B1 (en) | 2004-11-15 | 2004-11-15 | Loose-leaf binding tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1657078A1 EP1657078A1 (en) | 2006-05-17 |
EP1657078B1 true EP1657078B1 (en) | 2007-04-04 |
Family
ID=34927387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04027087A Active EP1657078B1 (en) | 2004-11-15 | 2004-11-15 | Loose-leaf binding tool |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1657078B1 (en) |
AT (1) | ATE358599T1 (en) |
DE (1) | DE602004005719T2 (en) |
ES (1) | ES2283924T3 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2612169A (en) * | 1948-06-14 | 1952-09-30 | Wilson Jones Co | Slidably actuated loose-leaf binder |
CH374969A (en) * | 1959-11-20 | 1964-02-15 | Braecker Ag | Ring mechanism for holding loose leaves |
US5975784A (en) * | 1997-12-16 | 1999-11-02 | U.S. Ring Binder Corporation | Bolt action ring binder |
GB2336569A (en) * | 1998-04-21 | 1999-10-27 | Profy International Corp | Ring binder with opening and closing mechanism |
US6155737A (en) * | 1999-04-30 | 2000-12-05 | U. S. Ring Binder Corporation | Bolt action ring binder |
-
2004
- 2004-11-15 EP EP04027087A patent/EP1657078B1/en active Active
- 2004-11-15 AT AT04027087T patent/ATE358599T1/en not_active IP Right Cessation
- 2004-11-15 DE DE602004005719T patent/DE602004005719T2/en not_active Expired - Fee Related
- 2004-11-15 ES ES04027087T patent/ES2283924T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE602004005719T2 (en) | 2007-12-27 |
ES2283924T3 (en) | 2007-11-01 |
ATE358599T1 (en) | 2007-04-15 |
EP1657078A1 (en) | 2006-05-17 |
DE602004005719D1 (en) | 2007-05-16 |
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