EP0312916A1 - Ring binder mechanism - Google Patents

Ring binder mechanism Download PDF

Info

Publication number
EP0312916A1
EP0312916A1 EP88117060A EP88117060A EP0312916A1 EP 0312916 A1 EP0312916 A1 EP 0312916A1 EP 88117060 A EP88117060 A EP 88117060A EP 88117060 A EP88117060 A EP 88117060A EP 0312916 A1 EP0312916 A1 EP 0312916A1
Authority
EP
European Patent Office
Prior art keywords
front plate
blades
ring
base member
binder mechanism
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.)
Withdrawn
Application number
EP88117060A
Other languages
German (de)
English (en)
French (fr)
Inventor
Dennis William Gateshead
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bensons International Systems Ltd
Original Assignee
Bensons International Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bensons International Systems Ltd filed Critical Bensons International Systems Ltd
Publication of EP0312916A1 publication Critical patent/EP0312916A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B42F13/16—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

Definitions

  • This invention relates to ring binder mechanisms of the kind comprising a longitudinal base member and two or more rings mounted thereon at spaced positions along the length thereof, each ring comprising two, separable ring segments, the segments being formed into two opposing sets which are disposed on opposite lateral sides of the centreline of the base member and mounted thereon for movement between respective open and closed positions.
  • the base member comprises a front plate and a pair of blades hingedly connected together along the centreline of the base member with each of said blades carrying one of said sets of ring segments.
  • the blades act as an over-centre device and engage the front plate at their outermost edges, and the front plate serves as a spring means whereby the blades are driven towards either of two extreme angular positions whereby the sets of ring segments are held in either the open or closed positions.
  • the front plate is of smoothly arched shape in transverse section in order to accommodate the apex formed by the blades when the ring segments are in the open position.
  • arched shape has two particular disadvantages.
  • the front plate requires the use of a wider strip of material than would be the case if it were possible to adopt a flatter shape, although the front plate cannot be made completely flat if it is to accommodate the blades in practice.
  • the force exerted on the blades to retain them in the two extreme positions is directly related to the superficial width of the front plate, i.e. the width thereof measured over the curved surface.
  • the front plate of shallow V-­shape in transverse section, instead of smoothly arched shape, so as to conform as closely as possible to the apex formed by the blades when the ring segments are in the open position.
  • This apparently simple modification firstly effects a small but advantageous saving of material in the manufacture of the front plate due to the reduced superficial width thereof over two flat inclined faces as compared an arc passing through the apex point.
  • the mechanism illustrated comprises a base member 10 which includes a front plate 11 formed as a metal pressing with fixing holes 12 at opposed ends and slots 13 for the passage of ring segments as hereinafter described.
  • the front plate 11 is formed over the majority of its area as two flat faces 14, 15 meeting at an apex 16 on the longitudinal centreline, although end portions of the apex are formed with flats 17, and defines a cavity 18 which is open at the underside.
  • the flats assist in the location of the base in an automatic rivetting machine when the mechanism is secured to a binder in conventional manner.
  • the cavity 18 defined by the front plate 11 houses a pair of blades 19, 19 a which are hingedly connected together at their contiguous edges on the centreline of the base, the blades being located at their outermost edges in grooves formed by inturned margins 14 a , 15 a of the front plate.
  • Two rings 20, 22 are formed from respective ring segments 21, 21 a , 23, 23 a , the segments 21 and 23 being carried by blade 19 and the segments 21 a , 23 a being carried by the blade 19 a so as to form two separable sets.
  • the contiguous edges of the blades require to be moved upwardly through a dead-­centre position in which the blades are co-planar, to a position in which the contiguous edges are displaced upwardly relative to the outermost edges of the blades.
  • the front plate 11 is stretched resiliently by outward movement of the lateral margins 14 a , 15 a by a small amount in order to accommodate the co-planar relationship of the blades 19, 19 a .
  • Such resilient stretching of the front plate 11 provides the spring force which is required to drive the blades positively to either of the extreme positions as illustrated, and therefore to maintain the ring segments in either the open or closed position as required.
  • the sectional shape of the front plate 11 corresponds as closely as possible to the apex formed by the blades 19, 19 a when the ring segments are in the open position. Accordingly, the superficial width of the front plate 11 is reduced to a practical minimum and in consequence the material of which the front plate 11 is made can be of correspondingly reduced thickness without weakening the spring effect for the reasons mentioned above.
  • any number of rings may be carried by the blades, and that the base member may include any known type of trigger to act directly on the blades for the opening and closing movements of the ring segments.

Landscapes

  • Sheet Holders (AREA)
EP88117060A 1987-10-21 1988-10-13 Ring binder mechanism Withdrawn EP0312916A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878724672A GB8724672D0 (en) 1987-10-21 1987-10-21 Ring binder mechanisms
GB8724672 1987-10-21

Publications (1)

Publication Number Publication Date
EP0312916A1 true EP0312916A1 (en) 1989-04-26

Family

ID=10625679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117060A Withdrawn EP0312916A1 (en) 1987-10-21 1988-10-13 Ring binder mechanism

Country Status (3)

Country Link
EP (1) EP0312916A1 (da)
DK (1) DK584088A (da)
GB (2) GB8724672D0 (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772348A (en) * 1995-09-20 1998-06-30 World Wide Stationary Company Limited Ring binder
FR2858266A1 (fr) * 2003-08-01 2005-02-04 Avery Dennison Corp Classeur et reliure a ouverture sur 360 degres

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9601431D0 (en) * 1996-01-24 1996-03-27 Leco Stationery Mfg A ring binder
GB2309424A (en) * 1996-01-24 1997-07-30 Leco Stationery Mfg A lockable ring binder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878079A (en) * 1928-04-27 1932-09-20 Richard M Watson Loose-leaf binder and method of forming the same
US2006795A (en) * 1933-12-20 1935-07-02 Wilson Jones Co Summary board
US2091188A (en) * 1934-10-31 1937-08-24 Wilson Jones Co Loose leaf binder
DE1611030A1 (de) * 1968-01-27 1970-12-10 Krause Kg Robert Ringmechanik
DE3609703A1 (de) * 1986-03-20 1987-09-24 Dieter Mesterheide Ringbuchmechanik

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1878079A (en) * 1928-04-27 1932-09-20 Richard M Watson Loose-leaf binder and method of forming the same
US2006795A (en) * 1933-12-20 1935-07-02 Wilson Jones Co Summary board
US2091188A (en) * 1934-10-31 1937-08-24 Wilson Jones Co Loose leaf binder
DE1611030A1 (de) * 1968-01-27 1970-12-10 Krause Kg Robert Ringmechanik
DE3609703A1 (de) * 1986-03-20 1987-09-24 Dieter Mesterheide Ringbuchmechanik

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772348A (en) * 1995-09-20 1998-06-30 World Wide Stationary Company Limited Ring binder
FR2858266A1 (fr) * 2003-08-01 2005-02-04 Avery Dennison Corp Classeur et reliure a ouverture sur 360 degres

Also Published As

Publication number Publication date
GB8724672D0 (en) 1987-11-25
GB8824700D0 (en) 1988-11-30
DK584088A (da) 1989-04-22
DK584088D0 (da) 1988-10-20
GB2211145A (en) 1989-06-28

Similar Documents

Publication Publication Date Title
US3986257A (en) Nail clipper
KR870010783A (ko) 구형체 형성장치
US5412956A (en) Variable sized hinged ring
US2852129A (en) Chain linkage
ATE543442T1 (de) Gewebebefestigungsvorrichtungen
US5154721A (en) Apparatus for fixing identification tags on animals
PT95182A (pt) Chapa bimetalica para cunhagem, destinada em particular a moedas e similares
DE60020901T2 (de) Enthaarungsvorrichtung
US4415290A (en) Binder assembly of the ring type
EP0312916A1 (en) Ring binder mechanism
FR2471838B1 (da)
US3520398A (en) Laterally flexible conveyor
US3757392A (en) Jewelry catch
CA2069828C (en) Pull tab for slide fastener
US5016410A (en) Device for the localized fastening of elements having an edge, especially of plates to a supporting structure
US4281940A (en) Loose-leaf binder
US4573822A (en) Sheet lifter for a loose leaf binder
US2645227A (en) Simplified trigger for loose-leaf binders
FR2368366A1 (fr) Liasse multiple, notamment liasse sans fin
US5524866A (en) Staple remover
US5549406A (en) No-bind page lifter clip
US4420271A (en) Centerline-attached looseleaf notebook page lifter
CN100410085C (zh) 具有互补的环顶部的、杠杆致动的拱形装订装置
US3992758A (en) Clip
IL144042A0 (en) Epilating device with pinching elements having a delaying element

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19891027