WO2011156959A1 - A ring binder mechanism - Google Patents
A ring binder mechanism Download PDFInfo
- Publication number
- WO2011156959A1 WO2011156959A1 PCT/CN2010/074009 CN2010074009W WO2011156959A1 WO 2011156959 A1 WO2011156959 A1 WO 2011156959A1 CN 2010074009 W CN2010074009 W CN 2010074009W WO 2011156959 A1 WO2011156959 A1 WO 2011156959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engagement member
- ring binder
- binder mechanism
- engagement
- eyelet
- Prior art date
Links
Classifications
-
- 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
- B42F13/0006—Covers for loose-leaf binders
- B42F13/0066—Covers for loose-leaf binders with means for attaching the filing appliance to the cover
- B42F13/0073—Covers for loose-leaf binders with means for attaching the filing appliance to the cover removable
Definitions
- This invention relates to a ring binder mechanism, and a paper-retaining device, such as a ring binder, box file, document file, document holder or the like, incorporating such a ring binder mechanism.
- a paper-retaining mechanism e.g. a ring binder mechanism
- a substrate e.g. a ring binder cover, box file cover, document holder cover or document file cover
- the ring binder mechanism is usually more durable than the cover.
- the ring binder mechanism is fixedly secured to the cover, it is very difficult, if at all possible, to detach the mechanism from the substrate without damaging the cover and/or the ring binder mechanism.
- a ring binder mechanism adapted to be engaged with a substrate
- said ring binder mechanism including a housing including at least one recessed portion with a through hole; a pivotable structure supported by said housing; a plurality of pairs of half-ring members mounted to said pivotable structure; a first engagement member with a first end in engagement with said recessed portion of said housing and a second end adapted to be in engagement with a first major surface of said substrate; and a second engagement member with a first end in engagement with said first end of said first engagement member and a second end adapted to be in engagement with an opposite second major surface of said substrate; wherein said pivotable structure is pivotable between an open configuration in which said pairs of half-ring members are open and a closed configuration in which said pairs of half -ring members are closed to form a plurality of closed rings; and wherein a central longitudinal axis of said first engagement member substantially coincides with a central longitudinal axis of said second engagement member; characterized in that first engagement
- a paper-retaining device including a substrate engaged with a ring binder mechanism, said ring binder mechanism including a housing including at least one recessed portion with a through hole; a pivotable structure supported by said housing; a plurality of pairs of half-ring members mounted to said pivotable structure; a first engagement member with a first end in engagement with said recessed portion of said housing and a second end in engagement with a first major surface of said substrate; and a second engagement member with a first end in engagement with said first end of said first engagement member and a second end in engagement with an opposite second major surface of said substrate; wherein said pivotable structure is pivotable between an open configuration in which said pairs of half-ring members are open and a closed configuration in which said pairs of half -ring members are closed to form a plurality of closed rings; and wherein a central longitudinal axis of said first engagement member substantially coincides with a central longitudinal axis of said second engagement member; characterized in that first engagement member, said housing and
- Fig. 1 is a top perspective view of a ring binder mechanism according to an embodiment of the present invention
- Fig. 2 is a bottom perspective view of the ring binder mechanism of Fig. 1;
- FIGs. 3 and 4 show assembling of a ring binder incorporating the ring binder mechanism of
- Fig. 5 is a top view of the ring binder of Fig. 4 as duly assembled
- Fig. 6 is a front view of the ring binder of Fig. 5;
- Fig. 7 is a right side view of the ring binder of Fig. 5;
- Fig. 8 is a left side view of the ring binder of Fig. 5;
- Fig. 9 is a top perspective view of the ring binder of Fig. 5;
- Fig. 10 is a sectional view taken along the line A- A in Fig. 5, with an operating lever removed;
- Fig. 11 is a front view of an eyelet of the ring binder mechanism of Fig. 10 before deformation;
- Fig. 12 is a sectional view taken along the line B-B in Fig. 11;
- Fig. 13 is a right side view of the eyelet of Fig. 11;
- Fig. 14 is a left side view of the eyelet of Fig. 11;
- Fig. 15 is a top perspective view of the eyelet of Fig. 11;
- Fig. 16 is a bottom perspective view of the eyelet of Fig. 11;
- Figs. 17 to 20 show steps of detaching the ring binder mechanism of Fig. 1 from the cover.
- a ring binder mechanism according to an embodiment of the present invention is shown in Figs. 1 and 2, and generally designated as 10.
- the ring binder mechanism 10 includes a housing 12 supporting a pair of hinged plates 14 for relative pivotal movement. To each hinged plate 14 are fixedly mounted three half-rings 16, thus forming a total of three pairs of half-rings 16. At each longitudinal end of the ring binder mechanism 10 is provided an operating lever 18 which are pivotable relative to the housing 12 and the hinged plates 14 to selectively pivot the hinged plates 14 between a closed configuration (as shown in Figs.
- pairs of half-rings 16 in which the pairs of half-rings 16 are in contact and mate with each other to form three closed rings for retaining pieces of hole -punched paper or similar materials (not shown), and an open configuration in which the pairs of half-rings 16 are open, thus allowing pieces of hole-punched paper or similar materials to be removed from or inserted into the half-rings 16.
- a recessed portion 20 with a respective through hole 22 adjacent each longitudinal end of the housing 12 and on an upper surface 19 of the housing 12 is a recessed portion 20 with a respective through hole 22.
- an eyelet 24 is received within each respective through hole 22, such that a first longitudinal end of the eyelet 24 is deformed to engage with the respective recessed portion 20.
- a substrate such as a box file cover 26 made of cardboard, plastic or other suitable materials, to form a paper-retaining device (such as a ring binder, box file, document file or document holder), two rivets 28 (of which only one is shown in Figs. 3 and 4) are engaged with the eyelets 24 and with the cover 26.
- each rivet 28 is deformed to engage with the deformed longitudinal end of the eyelet 24 and an opposite longitudinal end of the rivet 28 is engaged with an outer major surface 30 of the cover 26.
- an opposite second longitudinal end of the eyelet 24 abuts an opposite inner major surface 32 of the substrate 28.
- Figs. 5 to 9 show various views of a paper-retaining device, being a ring binder (generally designated as 29) including the ring binder mechanism 10 engaged with the cover 26.
- a first longitudinal end 34 of the eyelet 24 is deformed to engage with both surfaces of the housing 12 and a second opposite longitudinal end 36 of the eyelet 24 abuts the inner major surface 32 of the cover 26.
- the rivet 28 such is received within and through the eyelet 24.
- a first longitudinal end 38 of the rivet 28 is deformed to engage with the deformed longitudinal end 34 of the eyelet 24, and a second opposite longitudinal end 40 of the rivet 28 is engaged with the outer major surface 30 (which is opposite to the inner major surface 32) of the cover 26.
- the rivet 28 has a generally cylindrical hollow body 31 with an outer diameter a of 3.6 mm to 3.9 mm.
- the eyelet 24 is hollow and generally cylindrical, and has an inner diameter b of 4.0 mm to 4.3 mm.
- the eyelet 24 includes a generally cylindrical hollow upper portion 24a, a generally cylindrical hollow middle portion 24b and a flared and hollow lower portion 24c, with a common central longitudinal axis K-K and a hollow interior cavity 44.
- the upper portion 24a is narrowest, the middle portion 24b is broader and the lower portion 24c is broadest.
- the inner diameter b of the eyelet 24 is taken to be that of the middle portion 24b.
- the upper portion 24a is deformable to engage with the recessed portion 20 of the housing 12 and when the ring binder mechanism 10 is assembled with the cover 26, the lower portion 24c abuts the inner major surface 32 of the cover 26.
- the rivet 28 is received through the hollow interior cavity 44 of the eyelet 24, and the central longitudinal axis of the rivet 28 coincides with the central longitudinal axis K-K of the eyelet 24.
- ring binder mechanism 10 of the present invention is that, by reason of the above arrangement, in particular the ratio between the outer diameter a of the rivet 28 and the inner diameter b of the middle portion 24b of the eyelet 24, it is relatively easy to detach the ring binder mechanism 10 from the cover 26 to which it is engaged, in a manner to be discussed below.
- a utility portion 41 of a screwdriver 42 between the ring binder mechanism 10 and the inner major surface 32 of the cover 26 close to one longitudinal end of the ring binder mechanism 10, to pivot in the direction indicated by the arrow R in Fig. 19, to pivot the ring binder 10 away from the cover 26, to disengage the ring binder mechanism 10 (with the eyelet 24) from one rivet 28.
- the utility portion 41 of the screwdriver 42 is then (as shown in Fig. 18) inserted between the ring binder mechanism 10 and the inner major surface 32 of the cover 26 close to another longitudinal end of the ring binder mechanism 10, to pivot in the same direction as indicated by the arrow R in Fig. 19, to pivot the ring binder 10 away from the cover 26, to disengage the ring binder mechanism 10 (with the eyelet 24) from the other rivet 28.
Abstract
A ring binder mechanism (10) adapted to be engaged with a cover (26) is disclosed as including a housing (12) including at least one recessed portion (20) with a through hole (22), a pair of hinged plates (14) supported by the housing, a plurality of pairs of half-rings (16) mounted to the hinged plates, an eyelet (24) with a first longitudinal end (34) in engagement with the recessed portion of the housing and a second longitudinal end adapted to be in engagement with an inner major surface (32) of the cover, and a rivet (28) with a first longitudinal end (38) in engagement with the first longitudinal end of the eyelet and a second longitudinal end (40) adapted to be in engagement with an opposite outer major surface (30) of the cover, and the pair of hinged plates are pivotable between an open configuration in which the pairs of half-rings are open and a closed configuration in which the pairs of half-rings are closed to form a plurality of closed rings, and a central longitudinal axis (K-K) of the eyelet substantially coincides with a central longitudinal axis of the rivet, and the eyelet, the housing and the pair of hinged plates are pivotable relative to the rivet by substantially 20° to 70° to disengage the eyelet from the rivet.
Description
A Ring Binder Mechanism
This invention relates to a ring binder mechanism, and a paper-retaining device, such as a ring binder, box file, document file, document holder or the like, incorporating such a ring binder mechanism.
In conventional paper-retaining devices such as ring binders, box files, document files or document holder, a paper-retaining mechanism (e.g. a ring binder mechanism) is fixedly secured to a substrate (e.g. a ring binder cover, box file cover, document holder cover or document file cover) for releasably retaining sheets of hole-punched paper or similar material. As the cover is usually made of such materials as cardboard or plastic and the ring binder mechanism is usually made of a metal or metal alloy, the ring binder mechanism is usually more durable than the cover. However, as the ring binder mechanism is fixedly secured to the cover, it is very difficult, if at all possible, to detach the mechanism from the substrate without damaging the cover and/or the ring binder mechanism.
It is thus an object of the present invention to provide a ring binder mechanism and a ring binder incorporating such a ring binder mechanism in which the aforesaid shortcomings are mitigated, or at least to provide a useful alternative to the trade and public.
According to a first aspect of the present invention, there is provided a ring binder mechanism adapted to be engaged with a substrate, said ring binder mechanism including a housing including at least one recessed portion with a through hole; a pivotable structure supported by said housing; a plurality of pairs of half-ring members mounted to said pivotable structure; a first engagement member with a first end in engagement with said recessed portion of said housing and a second end adapted to be in engagement with a first major surface of said substrate; and a second engagement member with a first end in engagement with said first end of said first engagement member and a second end adapted to be in engagement with an opposite second major surface of said substrate; wherein said pivotable structure is pivotable between an open configuration in which said pairs of half-ring members are open and a closed configuration in which said pairs of half -ring members are closed to form a plurality of closed rings; and wherein a central longitudinal axis of said first engagement member substantially coincides with a central longitudinal axis of said second engagement member; characterized in that first engagement member, said housing and said
pivotable structure are pivotable relative to said second engagement member by substantially 20° to 70° to disengage said first engagement member from said second engagement member.
According to a second aspect of the present invention, there is provided a paper-retaining device including a substrate engaged with a ring binder mechanism, said ring binder mechanism including a housing including at least one recessed portion with a through hole; a pivotable structure supported by said housing; a plurality of pairs of half-ring members mounted to said pivotable structure; a first engagement member with a first end in engagement with said recessed portion of said housing and a second end in engagement with a first major surface of said substrate; and a second engagement member with a first end in engagement with said first end of said first engagement member and a second end in engagement with an opposite second major surface of said substrate; wherein said pivotable structure is pivotable between an open configuration in which said pairs of half-ring members are open and a closed configuration in which said pairs of half -ring members are closed to form a plurality of closed rings; and wherein a central longitudinal axis of said first engagement member substantially coincides with a central longitudinal axis of said second engagement member; characterized in that first engagement member, said housing and said pivotable structure are pivotable relative to said second engagement member by substantially 20° to 70° to disengage said first engagement member from said second engagement member.
An embodiment of the present invention will now be described, by way of an example only, with reference to the accompanying drawings, in which:
Fig. 1 is a top perspective view of a ring binder mechanism according to an embodiment of the present invention;
Fig. 2 is a bottom perspective view of the ring binder mechanism of Fig. 1;
Figs. 3 and 4 show assembling of a ring binder incorporating the ring binder mechanism of
Fig. 1;
Fig. 5 is a top view of the ring binder of Fig. 4 as duly assembled;
Fig. 6 is a front view of the ring binder of Fig. 5;
Fig. 7 is a right side view of the ring binder of Fig. 5;
Fig. 8 is a left side view of the ring binder of Fig. 5;
Fig. 9 is a top perspective view of the ring binder of Fig. 5;
Fig. 10 is a sectional view taken along the line A- A in Fig. 5, with an operating lever removed;
Fig. 11 is a front view of an eyelet of the ring binder mechanism of Fig. 10 before deformation;
Fig. 12 is a sectional view taken along the line B-B in Fig. 11;
Fig. 13 is a right side view of the eyelet of Fig. 11;
Fig. 14 is a left side view of the eyelet of Fig. 11;
Fig. 15 is a top perspective view of the eyelet of Fig. 11;
Fig. 16 is a bottom perspective view of the eyelet of Fig. 11; and
Figs. 17 to 20 show steps of detaching the ring binder mechanism of Fig. 1 from the cover.
A ring binder mechanism according to an embodiment of the present invention is shown in Figs. 1 and 2, and generally designated as 10. The ring binder mechanism 10 includes a housing 12 supporting a pair of hinged plates 14 for relative pivotal movement. To each hinged plate 14 are fixedly mounted three half-rings 16, thus forming a total of three pairs of half-rings 16. At each longitudinal end of the ring binder mechanism 10 is provided an operating lever 18 which are pivotable relative to the housing 12 and the hinged plates 14 to selectively pivot the hinged plates 14 between a closed configuration (as shown in Figs. 1 and 2) in which the pairs of half-rings 16 are in contact and mate with each other to form three closed rings for retaining pieces of hole -punched paper or similar materials (not shown), and an open configuration in which the pairs of half-rings 16 are open, thus allowing pieces of hole-punched paper or similar materials to be removed from or inserted into the half-rings 16.
As shown in Fig. 1, adjacent each longitudinal end of the housing 12 and on an upper surface 19 of the housing 12 is a recessed portion 20 with a respective through hole 22. As shown in Fig. 3, an eyelet 24 is received within each respective through hole 22, such that a first longitudinal end of the eyelet 24 is deformed to engage with the respective recessed portion 20. To engage the ring binder mechanism 10 with a substrate, such as a box file cover 26 made of cardboard, plastic or other suitable materials, to form a paper-retaining device (such as a ring binder, box file, document file or document holder), two rivets 28 (of which only one is shown in Figs. 3 and 4) are engaged with the eyelets 24 and with the cover 26. In particular, one longitudinal end of each rivet 28 is deformed to engage with the deformed longitudinal end of the eyelet 24 and an opposite longitudinal end of the rivet 28 is engaged with an outer major surface 30 of the cover 26. When the ring binder mechanism 10 is duly assembled with the cover 26, an opposite second longitudinal end of the eyelet 24 abuts an opposite inner major surface 32 of the substrate 28.
Figs. 5 to 9 show various views of a paper-retaining device, being a ring binder (generally designated as 29) including the ring binder mechanism 10 engaged with the cover 26.
As shown clearly in Fig. 10, a first longitudinal end 34 of the eyelet 24 is deformed to engage with both surfaces of the housing 12 and a second opposite longitudinal end 36 of the eyelet 24 abuts the inner major surface 32 of the cover 26. As to the rivet 28, such is received within and through the eyelet 24. A first longitudinal end 38 of the rivet 28 is deformed to engage with the deformed longitudinal end 34 of the eyelet 24, and a second opposite longitudinal end 40 of the rivet 28 is engaged with the outer major surface 30 (which is opposite to the inner major surface 32) of the cover 26. The rivet 28 has a generally cylindrical hollow body 31 with an outer diameter a of 3.6 mm to 3.9 mm.
Various views of the eyelet 24 are shown in Figs. 11 to 16. The eyelet 24 is hollow and generally cylindrical, and has an inner diameter b of 4.0 mm to 4.3 mm. Thus, the ratio outer diameter (a) of the rivet 28
is from 83% to 98%.
inner diameter (b) of the eyelet 24
As shown in Figs. 11 to 16, the eyelet 24 includes a generally cylindrical hollow upper portion 24a, a generally cylindrical hollow middle portion 24b and a flared and hollow lower portion 24c, with a common central longitudinal axis K-K and a hollow interior cavity 44. The upper portion 24a is narrowest, the middle portion 24b is broader and the lower portion 24c is broadest. The inner diameter b of the eyelet 24 is taken to be that of the middle portion 24b. The upper portion 24a is deformable to engage with the recessed portion 20 of the housing 12 and when the ring binder mechanism 10 is assembled with the cover 26, the lower portion 24c abuts the inner major surface 32 of the cover 26. When the ring binder mechanism 10 is assembled with the cover 26, and as shown in Fig. 10, the rivet 28 is received through the hollow interior cavity 44 of the eyelet 24, and the central longitudinal axis of the rivet 28 coincides with the central longitudinal axis K-K of the eyelet 24.
An important feature of the ring binder mechanism 10 of the present invention is that, by reason of the above arrangement, in particular the ratio between the outer diameter a of the rivet 28 and the inner diameter b of the middle portion 24b of the eyelet 24, it is relatively
easy to detach the ring binder mechanism 10 from the cover 26 to which it is engaged, in a manner to be discussed below.
As shown in Figs. 17 to 20, it is possible to insert a utility portion 41 of a screwdriver 42 between the ring binder mechanism 10 and the inner major surface 32 of the cover 26 close to one longitudinal end of the ring binder mechanism 10, to pivot in the direction indicated by the arrow R in Fig. 19, to pivot the ring binder 10 away from the cover 26, to disengage the ring binder mechanism 10 (with the eyelet 24) from one rivet 28. The utility portion 41 of the screwdriver 42 is then (as shown in Fig. 18) inserted between the ring binder mechanism 10 and the inner major surface 32 of the cover 26 close to another longitudinal end of the ring binder mechanism 10, to pivot in the same direction as indicated by the arrow R in Fig. 19, to pivot the ring binder 10 away from the cover 26, to disengage the ring binder mechanism 10 (with the eyelet 24) from the other rivet 28.
It is found in practice that it is possible to pivot the eyelet 24 with the ring binder mechanism 10 (including both the housing 12 and the pair of hinged plates 14) with which it is engaged, relative to the rivet 28 and the cover 26 by an angle Θ of 20° to 70° with a screwdriver 42 of a length T of around 8 inches (i.e. around 20.32 cm) by a force of around 9 pounds (i.e. around 40 N), so as to disengage the eyelet 24 (and thus the ring binder mechanism 10) from the rivet 28, and thus from the cover 26, without damaging at least the ring binder mechanism 10.
It should be understood that the above only illustrates an example whereby the resent invention may be carried out, and that various modifications and/or alterations may be made thereto without departing from the spirit of the invention. It should also be understood that various features of the invention which are, for brevity, described here in the context of a single embodiment, may also be provided separately or in any appropriate sub-combinations.
Claims
1. A ring binder mechanism adapted to be engaged with a substrate, said ring binder mechanism including:
a housing including at least one recessed portion with a through hole;
a pivotable structure supported by said housing;
a plurality of pairs of half -ring members mounted to said pivotable structure;
a first engagement member with a first end in engagement with said recessed portion of said housing and a second end adapted to be in engagement with a first major surface of said substrate; and
a second engagement member with a first end in engagement with said first end of said first engagement member and a second end adapted to be in engagement with an opposite second major surface of said substrate;
wherein said pivotable structure is pivotable between an open configuration in which said pairs of half -ring members are open and a closed configuration in which said pairs of half-ring members are closed to form a plurality of closed rings; and
wherein a central longitudinal axis of said first engagement member substantially coincides with a central longitudinal axis of said second engagement member;
characterized in that first engagement member, said housing and said pivotable structure are pivotable relative to said second engagement member by substantially 20° to 70° to disengage said first engagement member from said second engagement member.
2. A ring binder mechanism according to Claim 1 further characterized in that said first engagement member is hollow with an inner diameter and generally cylindrical.
3. A ring binder mechanism according to Claim 1 or 2 further characterized in that said second engagement member is generally cylindrical with an outer diameter.
4. A ring binder mechanism according to Claim 3 further characterized in that said second engagement member is received within said first engagement member.
5. A ring binder mechanism according to Claim 3 when dependent on Claim 2 further outer diameter of said second engagement member characterized in that is inner diameter of said first engagement member substantially 83% to 98%.
6. A paper-retaining device including a substrate engaged with a ring binder mechanism according to any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2010/074009 WO2011156959A1 (en) | 2010-06-17 | 2010-06-17 | A ring binder mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2010/074009 WO2011156959A1 (en) | 2010-06-17 | 2010-06-17 | A ring binder mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011156959A1 true WO2011156959A1 (en) | 2011-12-22 |
Family
ID=45347633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2010/074009 WO2011156959A1 (en) | 2010-06-17 | 2010-06-17 | A ring binder mechanism |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2011156959A1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5924811A (en) * | 1997-07-30 | 1999-07-20 | World Wide Stationery Mfg. Co., Ltd. | Assembling and disassembling device for ring binders |
| JP2000062377A (en) * | 1998-08-17 | 2000-02-29 | Yutaka Ito | Fastener |
| JP2000280673A (en) * | 1999-03-31 | 2000-10-10 | Kokuyo Co Ltd | Fixing structure of binding tool |
| JP2000280672A (en) * | 1999-03-31 | 2000-10-10 | Kokuyo Co Ltd | Fixing structure of binding tool |
| CN1057254C (en) * | 1995-05-09 | 2000-10-11 | 国际文具制造厂有限公司 | Ring binding device |
| WO2002028664A1 (en) * | 2000-10-04 | 2002-04-11 | Acco Brands, Inc. | Binder spine and removable insert |
| EP1759875A2 (en) * | 2005-08-31 | 2007-03-07 | World Wide Stationery Manufacturing Company Limited | Ring binder having a clip |
| CN101456316A (en) * | 2007-12-11 | 2009-06-17 | 国际文具制造厂有限公司 | Ring shaped jacket member and fixture system |
| CN101495323A (en) * | 2006-07-25 | 2009-07-29 | 株式会社喜利 | Binding fastener for file binder |
-
2010
- 2010-06-17 WO PCT/CN2010/074009 patent/WO2011156959A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057254C (en) * | 1995-05-09 | 2000-10-11 | 国际文具制造厂有限公司 | Ring binding device |
| US5924811A (en) * | 1997-07-30 | 1999-07-20 | World Wide Stationery Mfg. Co., Ltd. | Assembling and disassembling device for ring binders |
| JP2000062377A (en) * | 1998-08-17 | 2000-02-29 | Yutaka Ito | Fastener |
| JP2000280673A (en) * | 1999-03-31 | 2000-10-10 | Kokuyo Co Ltd | Fixing structure of binding tool |
| JP2000280672A (en) * | 1999-03-31 | 2000-10-10 | Kokuyo Co Ltd | Fixing structure of binding tool |
| WO2002028664A1 (en) * | 2000-10-04 | 2002-04-11 | Acco Brands, Inc. | Binder spine and removable insert |
| EP1759875A2 (en) * | 2005-08-31 | 2007-03-07 | World Wide Stationery Manufacturing Company Limited | Ring binder having a clip |
| CN101495323A (en) * | 2006-07-25 | 2009-07-29 | 株式会社喜利 | Binding fastener for file binder |
| CN101456316A (en) * | 2007-12-11 | 2009-06-17 | 国际文具制造厂有限公司 | Ring shaped jacket member and fixture system |
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