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
  • B42F13/26—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 and locked when so engaged, e.g. snap-action

Definitions

• the invention relates to a ring binder of the type corresponding to the preamble of claim 1.
• Such a ring binder is known from DE-GM 73 43 377.
• the folding strips are pivotally connected to the back.
• the mechanics are attached directly to the back.
• the fold strips form a type of channel of variable cross-section, in which the mechanism with the rings is located.
• the lids protrude slightly inwards against the rings via the articulation line of the folding strips and are connected to one another by two webs extending across the channel, which prevent the folding strips from falling apart from the rings.
• a certain depth of the channel is thereby maintained and the two-sided stacks of the insert sheets are pushed up so that they are held by the upper regions of the rings and the rings do not protrude significantly above the top of the two-sided stacks.
• the hand can slide over the rings of the mechanics without resistance and is less hindered than with conventional ring binders, in which the rings over the both sides of the stack of insert sheets are considerably high.
• the known embodiment has two disadvantages: the webs, which have to be flexible, but which are constantly stressed when handling the ring binder, are weak points of the known construction with regard to their durability. They prevent you from leafing through the insert sheets when the ring binder is open. The firm connection of the mechanics to the back makes handling of the ring binder difficult when leafing, in particular if the stacks of insert sheets on both sides are of different thicknesses.
• the invention has for its object to improve a genus according ring binder in terms of its handling.
• the adaptability is further increased by the configuration according to claim 2.
• the angular range does not have to be large. Tilting the center plane of the mechanics about its longitudinal axis by about 10 to 15 on each side is sufficient.
• the mechanism can be held on retaining pins (claim 3), which can be designed in the manner evident from claim 4.
• the housing of the mechanism has a front wall and a rear wall facing the back, both of which are cup-shaped and connected to one another at the edges.
• the shells facing each other delimit a closed interior in which the adjustment parts for opening and closing the rings are accommodated.
• the attachment to the holding pin can be designed in the manner that can be gathered from claim 5.
• the fold strips form a rigid channel with a U-shaped cross-section in which the mechanism is housed.
• the free edges of the U-shaped channel push the stacks of insert sheets upwards, i.e. in the outer area of the rings, so that there is a smooth writing surface in which the two stacks of insert sheets merge into one another practically at the same height and the rings hardly protrude upwards.
• Opening the ring binder results in a rigid attack element on the back, on which the ring binder can be securely grasped when writing, in contrast to the known embodiment in which the side fold strips were pivotable relative to the back and accordingly only a very insecure attack was possible .
• the rigid connection of the folded strips and the back can be realized in that the folded strips and the back are assigned a profile section of U-shaped cross section (claim 7), which consist of metal or plastic and on the inside of the back and the Folded strips attached or in the preferred embodiment according to claim 8 can form an insert of the back and fold strip material.
• a snap connection can be provided according to claim 11, which only has to be tight enough to hold the block of the insert sheets.
• the release of the snap connection should be easy when opening the ring binder.
• the snap connection can be designed in detail according to claim 12.
• the dimensioning according to claim 13 makes it easier to close the rings of the ring binder. These sit with their outer areas on the free edges of the profile section U-shaped cross-section and are pressed upon closing between the legs of the profile section when they are pushed in.
• FIG. 1 is a perspective view of a conventional ring binder
• FIG. 2 is a corresponding perspective view of the ring binder according to the invention.
• Fig. 3 to 5 are cross section through the back area on an enlarged scale
• the ring binder 10 shown in Fig. 1 comprises a strip-shaped back 1, on the long sides of which the covers 2 and 3 are arranged.
• the so-called mechanism 4 is fastened, which has an elongated, over the height of the back 1 or of the ring binder 10 includes housing 5, on which are arranged in planes extending perpendicular to the longitudinal axis of the housing 5, upwardly projecting rings 6 from the housing 5, which pass through perforations 7 in the inserts 8.
• the handle 9 of the mechanism 4 By pressing down the handle 9 of the mechanism 4, the two halves of the divided rings 6 can be pivoted apart, so that an opening is created in the middle through which insert sheets 8 can be inserted or removed.
• By pressing the ring halves together they snap together again to form a closed ring 6.
• the rings 6 protrude approximately half over the writing surface formed by the insert sheets 8 and in particular hinder writing on the insert sheets 8 on the left in FIG. 1.
• the user In order to hold the ring binder 10 in the open state in the hand, the user must reach over the upper edge, since there is no holding possibility on the outside of the ring binder 10.
• the back 11 with the side fold strips 12 forms a fixed channel 13 U-shaped cross section which extends over the height of the ring binder 100.
• the folded strips 12 are rigidly connected to the longitudinal edges of the back 11 and form the legs of the U-shaped channel 13, on the free edge of which the covers 2, 3 are hinged.
• the mechanism 4 is located inside the channel 13 in a U-shaped cross section and is movably mounted therein in a manner to be described.
• the rings 6 protrude significantly less above the writing surface formed by the insert sheets 8 and hardly impede writing.
• the user can turn the ring binder when leafing through the rigid channel 13, via the cover 2, 3 outwards or downwards according to FIG. 2 projecting web, which makes it considerably easier to use.
• the housing 5 consists of two elongated shell-shaped, the rear or front wall forming parts 15, 16, which are placed against each other with the open sides and of which the shell 16 at 17 over the edge of the lower shell 15 is crimped.
• the housing 5 of the mechanism is held movably on the back 1 perpendicular to it, specifically on a holding pin 20 with a head 21, which is fastened symmetrically to the inside of a profile section 30 with a U-shaped cross section.
• the height of the holding pin 20 corresponds approximately to the height of the legs of the profile section 30.
• the profile section 30 extends over the length of the back 1 and consists of sheet metal, the holding pins 20 being riveted on, or it forms one piece with the holding pins 20 molded rigid plastic part.
• the lower shell 15 of the housing 5 has a hole 18 in the middle at the locations of the two retaining pins 20 through which the shaft of the retaining pin 20, but not the head 21, can pass.
• the shell 16 has a perforation 19 which is aligned with the perforation 18 and which allows the head 21 to pass through. In this way, the holding pin 20 allows the housing 5 to move up to a position delimited by the head 21 and to move the housing 5 until the lower shell 15 bears against the back 1, as shown in FIG. 5 .
• the housing 5 of the mechanism can not only be displaced perpendicularly to the back, but can also be pivoted a little about the holding pin 20 about its longitudinal axis, as can be seen in FIG. 4.
• the perforation 18 thus allows the shaft of the holding pin 20 to pass through with some play.
• the covers 2, 3 lie parallel to one another, continue the folded strips 12, 12 in the same plane and enclose the stack of insert sheets 8 between them.
• the mechanism 4 with the stack of insert sheets 8 on the holding pins 20 is lowered towards the back.
• a snap connection 22, which is only indicated in FIGS. 5 and 6, may be present on the outside of the shell 15 of the housing 5.
• the snap connection 22 is snapped in by gently pressing the stack of insert sheets against the back 1. In the snap-in state, the snap connection 22 holds the stack of insert sheets 8 firmly on the back, so that it cannot move back and forth arbitrarily when handling the closed ring binder 100. With a light pull 5 upwards, however, the snap connection 22 releases the housing 5 of the mechanism 4 again, so that the positions shown in FIGS. 3 and 4 can be assumed.
• the covers 2, 3 are also formed from two leather layers glued together flat. Instead of leather, synthetic leather, plastic or another material can of course also be used.
• the outer layer 23 extends over the cover 2, the fold strip 12, the spine 1, the other fold strip 12 and the other cover 3. It covers the outside of the profile section 30.
• the inner layer 24 covers the inside of the legs of the profile section 30 and ends in the exemplary embodiment just before the "bottom" of the profile section. In this case, the profile section 30 forms a type of reinforcement insert.
• the open position of the rings 6 is indicated by dashed lines in FIG. 3. They lie with their underside at about 25 against the inside of the upper edges of the rigid channel 13 and are compressed when they experience a force directed downwards from FIG. 3. So the closing of the rings 6 is facilitated.

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• Sheet Holders (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6395501

Family Applications (1)

Country Status (2)

Citations (2)

Family Cites Families (3)

• 1989
  • 1989-12-15 DE DE19893941396 patent/DE3941396C1/de not_active Expired - Fee Related
• 1990
  • 1990-12-10 WO PCT/EP1990/002135 patent/WO1991008912A1/de unknown

Patent Citations (2)

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