EP0523350A1 - Classeur - Google Patents

Classeur Download PDF

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Publication number
EP0523350A1
EP0523350A1 EP92108587A EP92108587A EP0523350A1 EP 0523350 A1 EP0523350 A1 EP 0523350A1 EP 92108587 A EP92108587 A EP 92108587A EP 92108587 A EP92108587 A EP 92108587A EP 0523350 A1 EP0523350 A1 EP 0523350A1
Authority
EP
European Patent Office
Prior art keywords
folder
letter
front cover
slot opening
latching
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Withdrawn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
EP92108587A
Other languages
German (de)
English (en)
Inventor
Rolf Voegele
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.)
Louis Leitz KG
Original Assignee
Louis Leitz KG
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 Louis Leitz KG filed Critical Louis Leitz KG
Publication of EP0523350A1 publication Critical patent/EP0523350A1/fr
Withdrawn legal-status Critical Current

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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
    • B42F13/008—Slots or openings in covers for rings

Definitions

  • the invention relates to a letter folder made of stiff cardboard material with a file spine, one front and rear cover articulated on the file spine, one arranged on the inside of the back cover, two alignment pins and a folder mechanism made of bent metal wire and having two-legged folding mechanism, two arranged in slot-shaped openings in the front cover , an elongated oval or rectangular retaining eyelets that leave a slot opening for the passage of one of the bracket legs when the folder is closed and a latching element for the bracket arm in question that is formed approximately centrally on a broad side of each retaining eyelet and engages in the slot opening.
  • the folder mechanism attached to the back cover and possibly filled with documents can be supported on the front cover with the folder closed and placed on a base, so that the stability of the folder is improved.
  • the eyelets are made of stamped sheet steel.
  • a cam which engages in the slot opening and forms the latching element is formed, which ensures latching with the bracket legs of the folder mechanism in the closed state.
  • the eyelets and the file mechanism have to be exactly matched to each other. This requires dimensional coordination, which is accomplished in the production line by suitable stops.
  • the present invention seeks to develop a letter folder with eyelets of the type mentioned, in which a secure locking and holding function is guaranteed over the entire life of the folder despite existing manufacturing tolerances.
  • the invention is based on the idea that a better tolerance compensation and thus an improvement in function can be achieved by an elastic and symmetrical locking of the bracket legs in the area of the holding eyes.
  • the retaining eyelets are made of plastic, that the latching element is elastically flexible transversely to the slot opening, and that on the broad side of the retaining eyelets opposite the latching element, another elastically flexible latching element engaging in the slot opening, for example is integrally formed, the mutual clear distance between the locking elements smaller than the diameter of the folding bracket forming metal wire and can be expanded to at least the diameter size by elastic deformation.
  • the eyelets can either be prefabricated as separate molded plastic parts and then assembled, or they can be produced by overmolding the front cover in the area of the openings during production.
  • the preformed retaining eyelet has an outward-facing, circumferential groove for plugging onto the opening edge in the front cover, one of the two groove flanks being able to be formed and embossed, preferably under the action of pressure and heat, during the assembly, while in the latter case the Both retaining eyes can be molded together on the front cover, the retaining eyes on the inside of the front cover being connected to one another by a sprue which is also present in the finished state.
  • the cardboard material can be embossed in the area of the breakthrough edge while reducing the front cover wall thickness, so that the retaining eyelet does not protrude or only slightly protrudes beyond the cover surface.
  • the latching elements have a run-up slope for the bow legs directed towards the inside of the folder.
  • the locking elements can have a locking bevel pointing towards the outside of the folder for the stirrup leg.
  • the latching elements advantageously have a pocket-shaped recess which is open on the side of the slot opening and delimited by a latching lip and which can be elongated in its cross section parallel to the slot opening.
  • the latching action is advantageously the latch lip having a ramp slope and a latch slope after the interior of the folder on the retaining eyelet.
  • the run-up slope can be arranged outside the slot opening on the inside of the front cover, while the locking slope is arranged directly in the area of the slot opening.
  • the notch can extend to the inside of the folder on the front cover.
  • the letter folder shown in Fig. 1 consists essentially of a folder spine 10, a front cover 12 and a rear cover 14 made of rigid, optionally provided with a cardboard material, which are integrally connected to one another at joints 16 produced by embossing or compression molding.
  • a file mechanism 18 is fastened, which has vertically protruding row pins 20 and a two-legged bend made of metal wire Folding bracket 22 reaches through the inside of the folder in the direction of the front cover 12.
  • slot eyelets 26 made of plastic are inserted into slot-shaped openings 24 of the cardboard material, which limit an elongated slot opening 28 for the passage of the curved end bracket leg parts 30 of the folding bracket 22.
  • locking elements 34, 34' are formed in the center, which engage in the slot opening 28 and are elastically flexible.
  • the elastic resilience of the latching elements is reinforced by a pocket-shaped recess 36, which is either open towards the outside of the folder (FIG. 3) or inside of the folder (FIGS. 4 and 5) and to the slot opening 28 through a lip forming the latching element 34, 34 ' is limited.
  • the clear distance between the latching elements 34, 34 'in the relaxed state is smaller than the diameter of the metal wire forming the folding bracket 22 (see FIG. 5), and can be widened at least to the diameter when the curved bracket leg part 30 is pressed in.
  • An upward slope 38 pointing towards the inner part of the folder ensures that the bracket legs 32 are reliably inserted into the closing opening 28 even when the front cover is twisted or bent when the front cover is closed, while the locking bevel 40 pointing towards the outside of the file primarily has a locking and holding function.
  • the locking lips 34, 34 ' are somewhat inferior over the inside of the folder, so that the rest area is slightly enlarged.
  • the retaining lugs 26 can either be prefabricated as individual parts and plugged onto the opening edge 24 with their circumferential circumferential groove. It is possible here to form the one flank of the groove 42 only in the course of assembly, for example in the embossing process or by hot deformation.
  • the eyelets 26 can also be molded onto the front cover 12 in the area of the opening 24 in the course of order production.
  • a common spray channel can be used for both retaining eyes 26, which remains as a sprue 44 between the two retaining eyes 26 in the finished state on the inside of the lid.
  • the cardboard material of the front cover 12 is embossed in the edge area 46 of the openings 24 while reducing the wall thickness, so that the retaining eyelets 26 protrude only slightly beyond the inner and outer surface of the cover.
  • the invention relates to a letter folder made of stiff cardboard material with a folder spine 10, one front and rear cover 12, 14 articulated on the folder spine, one folder mechanism 18 fastened on the inside of the rear cover 14 and two arranged in slot-shaped openings 24 , a slot opening 28 for the passage of one stirrup leg 30 of the folder mechanism 18 leaving eyelets 26 in order to ensure a secure locking of the stirrup legs 30 in the eyelets, are designed as plastic molded parts, each having on their broad sides 32,32 'an elastically resilient locking element 34,34' which engages in the slot opening 28.

Landscapes

  • Sheet Holders (AREA)
EP92108587A 1991-06-22 1992-05-21 Classeur Withdrawn EP0523350A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914120716 DE4120716A1 (de) 1991-06-22 1991-06-22 Briefordner
DE4120716 1991-06-22

Publications (1)

Publication Number Publication Date
EP0523350A1 true EP0523350A1 (fr) 1993-01-20

Family

ID=6434564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108587A Withdrawn EP0523350A1 (fr) 1991-06-22 1992-05-21 Classeur

Country Status (2)

Country Link
EP (1) EP0523350A1 (fr)
DE (1) DE4120716A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001066363A1 (fr) * 2000-03-08 2001-09-13 Leco Stationery Manufacturing Company Limited Dispositif permettant de maintenir une pile de feuilles de papier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627797B4 (de) * 1996-07-10 2005-10-13 Esselte Leitz Gmbh & Co. Kg Ordnereinband

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1279530A (fr) * 1959-11-28 1961-12-22 Classeur à levier
DE1262966B (de) * 1964-01-28 1968-03-14 Mehle & Co Emil Briefordner
DE1536554A1 (de) * 1967-11-16 1970-01-08 Blankenburg & Bruckhorst Briefordner
DE8705538U1 (fr) * 1987-04-14 1987-06-11 Buettner-Plastic Inh. Herbert Buettner Apparatebau U. Plasticverarbeitung, 7801 Umkirch, De

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT261543B (de) * 1964-04-27 1968-04-25 Leitz Fa Louis Briefordner
DE1436170A1 (de) * 1964-04-27 1969-10-09 Leitz Fa Louis Briefordner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1279530A (fr) * 1959-11-28 1961-12-22 Classeur à levier
DE1262966B (de) * 1964-01-28 1968-03-14 Mehle & Co Emil Briefordner
DE1536554A1 (de) * 1967-11-16 1970-01-08 Blankenburg & Bruckhorst Briefordner
DE8705538U1 (fr) * 1987-04-14 1987-06-11 Buettner-Plastic Inh. Herbert Buettner Apparatebau U. Plasticverarbeitung, 7801 Umkirch, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001066363A1 (fr) * 2000-03-08 2001-09-13 Leco Stationery Manufacturing Company Limited Dispositif permettant de maintenir une pile de feuilles de papier

Also Published As

Publication number Publication date
DE4120716A1 (de) 1992-12-24

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