CZ22850U1 - Paper file - Google Patents

Description

The Industrial Property Office does not ascertain in the registration procedure whether the subject of the utility model meets the conditions of eligibility for protection pursuant to Section I of Act no. No. 478/1992 Coll.

CZ 22850 Ul

Binder

Technical field

The technical solution relates to a stable storage binder primarily for storing individual sheets of paper, cardboard or plastic with a top and bottom plate, a spine joining the sheets and a mechanism mounted on the bottom sheet spool plate, the mechanism consisting of two fixed parts of the drive - the two prongs, which can be connected to these fixed parts of the preasure - the prongs, and which are connected to the tilting part of the mechanics, and a control mechanism for fastening or tilting the arms from the fixed parts of the prime - tines.

BACKGROUND OF THE INVENTION

EP 0 537 438 B1 discloses a binder mechanism applicable to such a stable binder. This binder mechanism provides for a base plate on which the spikes are fixedly spaced apart. Furthermore, it comprises a pivoting part of the mechanism with pivoting arms which rotates between an open and a closed position about an axis parallel to the base plate. In the area between the shifting spikes and the tilting (rotating) part of the mechanics, the bearing rack protrudes above the base plate. Also in this binder with mechanics was used control lever with the end on the bearing stand running transversely to the axis of the tilting part of the mechanism stored so that it can be tilted only to a limited extent, with a flap acting mainly in the folding of the tilting part against the force of the pen and with the other end carrying extending out of the bearing rack unilaterally between one alignment tip and the secondary tilting arm, in the open state by means of a handle, can be raised up to the secondary tilting (pivoting) arm, this operating lever closes the opening which can be formed between the tilting arms and fixed parts of the mechanism. The opening and closing of the tilting arms and the fixed parts of the mechanism (pruning tips) are performed according to EP 0 537 438 B1 by deflecting the control lever.

NL 7 706 457 A also shows an integrated blade-shifting mechanism on the base plate inside the back of the binder, in which the two folded arms can always be folded apart so that the holes thus formed can be loaded onto the tilting parts of the mechanism (arms) . By means of a sliding mechanism acting on both arms and located symmetrically to the pivot axis of both arms, the second hinged part of the mechanism can be tilted and thus the opening between the arms can be closed and the rigid and hinging part of the mechanism fixed. Since the base plate is located here in the spine area and not on the bottom plates, this binder described is not suitable for holding a plurality of sheets. Rather, these spaced leaves in the loop loosely protrude to the side opposite the back of the binder, thereby hanging the leaves with all their weight on the shoulders, so that they can easily be damaged at the point where they are pinned to the mechanics arms.

The essence of the technical solution

The task of the technical solution is to provide a simple constructed mechanism for inserting sheets in a binder.

In such a file as described, this task of the invention is solved in that the tilting part of the mechanism comprises a rotating part of the mechanism - an eccentric shaft which can be released by hand by means of a sliding mechanism or fixed to the lower plate.

For example, the eccentric is tm mounted on a shaft (rotating part of the drive) protruding at right angles to the longitudinal axis of the shaft, which can be pushed towards the lower binder plates by a sliding mechanism to fix the arms (tilting parts of the drive) to a fixed part - in the opposite direction of movement of the slide mechanism - to release it from its rest position. In contrast to the mechanism according to EP 0 537 438 B1, it is not necessary to use a control lever on whose sharp edges, especially on the side of the control lever grip, the user may be injured, especially when the control lever is open and the arms protrude

- 1 CZ 22850 Ul up. The sharp edges of the bearing stand can also be injured. Compared to the prior art known from EP 0 537 438 B1, this invented binder is not so complex as it requires no massively executed bearing rack, no shaft on the arch holding the arms together, a thrust member sliding in the crank section, or a spring to create a force pushing the arch. upwards.

The technical solution is a simple, user-friendly binder design that is robust and minimizes the risk of injury when operating the sheet spool mechanism. The sliding mechanism is easy to operate and requires minimal handling effort. Unlike the prior art, no lever can open uncontrolled. Due to the lack of the control lever, it is also possible to remove the blades on both sides of the arms (tilting part of the drive) and from both shifting points (fixed parts of the drive). The same applies to sheet spooling.

Further useful modifications of the invention result from the subsidiary claims, the description and the drawings.

In particular, the technical solution comprises a sliding mechanism formed by a slide movable in the groove. The plunger requires, in order to move transversely, guide elements that are fixed either on the outside of the plunger or inside it. For example, the plunger moves along the tip or the path it travels is fixed on its outer contours by stable elements acting on it.

The groove comprises at least one guide element fastened to the bottom plate and a second guide element fastened to the slide which cooperates with the first guide element.

According to a particularly suitable embodiment, the first guide element has two pins at the free ends with thickenings through which the pins project into the longitudinal holes formed as the second guide member of the ram.

In order to be able to insert the pins with their thickened end into the longitudinal hole of the ram, these longitudinal holes are circularly widened at one end in view of the direction of travel of the ram, so that the thickened ends of the pins can be pushed through.

In particular, a sliding mechanism with an inclined surface is also envisaged, through which at least the first eccentric of the shaft (rotating part of the mechanism) can be pressed against the bottom plate or released when the sliding mechanism is moved.

The advantage is shown when the sliding mechanism fixes at least the first eccentric against the spring force against the bottom plate.

It is likewise advantageous that the shaft is pressed against the spring located on the bottom plate by at least the second eccentric.

In particular, two such eccentrics can be mounted at the shaft ends, which are pressed against the spring elements mounted on the bottom plate in the rest position of the ram so as to ensure stable positioning of the ram in rest position while simultaneously pressing the arms of the tilting part firmly against the prongs (fixed part of the mechanics).

An improvement is also that the pins have notches on their upper side, into which the second eccentrics can be pushed by their front side in the fixed position of the sliding mechanism.

In order to ensure easy manual operation of the ram, the ram has a manually-gripping element, in particular a grip ring, for moving the ram in the groove.

If the ram is at least partly of a hard plastic, it has sufficient stability to adjust the position of the arms of the tilting part of the mechanism relative to the alignment tips.

In order to be easily grasped in the binder, the alignment tips (fixed parts of the drive) are either oblique or curved relative to the bottom plate, so that even the free longitudinal edges of the sheets lie on top of one another or stand in sequence.

-2GB 22850 U1

The technical solution relates to a binder, in particular to a binder exhibiting some of the aforementioned features, having a closure on the side opposite the spine to connect the lower and upper plates.

According to the invention, the hinged closure is located on the plates, about whose long side the closure can be rotated, which can be connected on its free side with one magnetic element attached to it with the other magnetic element on the free side of the other plate. mutually opposite magnetic poles.

An alternate hinged closure on the opposite side of the back can also be used to connect the lower and upper plates, which is fixed on one plate and can be swiveled around the free long side of the plate and connected to the other plate by a stop that snaps into the latch on the other .

The magnetic tab is used to fix the snap-on closure on the inside of the top plate, especially when the binder is open. This closes the closure firmly and does not bind when using the binder.

On the free side of the hinged closure there is at least one reinforcement in the longitudinal direction of the closure with a predominantly circular cross-section.

The latch on the snap-in closure serving as the latch is pushed or snapped into a resilient latch positioned longitudinally on the free side of the second plate, in a second cross-section adapted to the shape of the first, which is also primarily circular.

The hinged closure is prestressed due to the elastically resilient elements in the region of the closure axis, in particular due to the rubber stops.

In addition, the technical solution relates to a binder, in particular with one or more features as described above, further characterized in that the binder is equipped with an electronic computer or a memory module located on the spine or attached to the bottom or top of the binder. .

Preferably, the computer or memory module is placed in a pocket on the back or held by a magnetic holder along with the magnetic elements on the back.

In one preferred embodiment, the computer or memory module is mounted from the inside of the spine.

Regardless of the location of the computer or memory module on the inside or outside of the spine, it is designed to be flush with the spine surface.

In one embodiment, the computer or memory module can be connected wirelessly or by cable to a computer or computer network so that data transfer between the computer and the computer or memory module is possible, in particular a USB disk located on the binder. It is particularly useful when data is added to the memory module or computer to supplement data stored in paper form in a binder or when it supplements data in a way that would not be possible in paper form. This applies in particular to drawings and image data. If the computer or memory module is to be connected via cable to a computer, central computer, or computer network, the connection socket on the computer or memory module is used to connect the cable.

Another possible embodiment of this binder is to equip the memory module with a display. It makes it easy to change the binder description depending on the change in the binder content. The display can be switched on if the memory module or computer has solar cells for power supply, which then also supply the display with power. Replacing labels, as is conventional and necessary in the prior art, is therefore no longer necessary.

In another embodiment of the invention, the computer or memory module is provided with an acoustic signal emitting unit, in particular a piezo acoustic transducer, and / or an optical signal unit, in particular a light emitting diode. Thanks to the optical or acoustic signal, the binder can be easily found within the office if there is also a memory module or computer

-3GB 22850 U1 is equipped with an RFID chip or transponder (automatic receiver and transmitter), which can be used to locate the binder via the electromagnetic waves via a data connection to the central apartment unit.

In a further suitable embodiment of the invention, the phenomenon of the spine and / or plates, in particular in the vicinity of the free longitudinal sides of the plates, is at least one handle and / or cut-out. These handles and / or slots greatly improve the use and handling of the binder compared to conventional binders. Thus, the opening of the hand when gripping does not have to be so large, the gripping opening, especially together with at least one depression, is located primarily near the lower edge of the binder.

In a further embodiment, the plates in the region of the outer edges, in particular the lower edges, in particular also in the area of the lower corners and / or the upper corners, are provided with a plastic which exhibits greater strength compared to the plate and / or spine material.

This plastic has a greater thickness in the area of the edges and / or corners opposite the plate surface. In this way, the binder gains stability and can stand freely on the surface.

In addition, the binder may be provided with an elastic resilient element on the inner side of the top plate 15, for example in the middle of them, which presses in the closed state against the sheets inserted in the binder.

A further embodiment of the invention has on the outside of the spine an opening or a finger-insertion area which is terminated by a cover for finger protection. Now, when the user grasps the binder with his fingers in the opening, the cover on the inside of the spine prevents injury from sharp edges of the paper or any of the elements of the sliding mechanism.

To attach a snap-in closure for closing the binder during use of the binder, i.e. when the binder is open, the closure can be fixed by magnets or other brackets on the inner side of the plate on which the outer side is located. For this purpose, the closure on the side facing the magnets is also magnetized, the magnetic poles being opposed to each other to ensure that the closure and the magnets in the plates are attracted.

BRIEF DESCRIPTION OF THE DRAWINGS

Further, the technical solution is described in more detail with reference to a possible embodiment.

Fig. 1. 1 a top view of an open binder in an axonometric representation with a sliding mechanism disposed on the inside of the binder spine, including a slide for adjusting the two arms of the hinged part of the mechanism, 30 Fig. 2 axonometric representation of a detail of the sliding mechanism in disassembled state with a slide, a hinged part of the mechanism with arms and a shaft (rotating part of the mechanism) connecting the arms, shafts for shafts and shifting points, Fig. 1. 3a, 3b the slide from two different views, always with the arms open (relative to the alignment tines in the open state) viewed from the longitudinal side of the slide, Fig. 4a, 4b slide from two different views, always in the closed state of the arms (relative to the shifting spikes), also a view of the longitudinal side, Fig. 1. 5a, 5b Fig. 1. 6a, 6b cross-sectional views of the elements of the sliding mechanism, two axonometric longitudinal views of the slide,

Fig.7 a top view of an open and lying binder,

Fig. 1. 8

Fig. 1. 9

Fig. 1. 10a, 10b an axonometric front view of a standing and partially opened binder, a side view of a hinged closure connecting the front and rear plates, axonometric views of a standing and partially opened binder, with a closure in various open positions,

-4EN 22850 Ul

Fig. 1. 11a, 11b show further axonometric views of the standing and partially opened binder with the closure in other positions,

Fig. 1. 12 is an axonometric view of a standing and closed binder with the closure closed;

Fig. 1. 13 is a front view of a standing closed binder with the closure also closed;

Fig. 1. 14 is a top view of the outside of a standing open binder,

Fig. 1. 15, 16 further views of a standing, partially opened binder, and

Fig. 1. 17, 18 are axonometric views of the binder in the closed state.

Example of technical solution

Binder 1 (Figs. 1 to 6b), into which individual sheets of paper, cardboard and plastic, always punched close to the inner side of the binder 2 of the binder 1, has a lower and upper plate 3,4 separated by a back 2 .

The shifting tips 5, 6 mounted on the bottom plate 3 or the fixed part of the drive 3a on the bottom plate 3 and with a pair of loops 8, 9 connectable in a loop and connected by the clipping part of the drive 7 are used for spacing of the blades. 10 by moving the slide 11 towards the two-way arrow A away from the two-way arrows B, C so that the clip-on part of the drive either opens or closes (the two-way arrows D, E) as shown in FIG. 1, the holes between the arms 8.9 and the alignment tips 5, 6 for inserting the blades.

The shaft 10 is mounted on the bottom plate 3 or on the fixed part of the mechanism 3a in the seat 10a, 10b; it holds as eccentric tm 12 (Fig. 2), which can be tilted by sliding the slide £ 1, since slide H has a sloping surface £ 3 acting on the dark position £ 2. At the ends of the shaft 10 there are two eccentrics 14, 15 which are pressed against the resilient elements 16. 17. if the shaft 10 is rotated by moving the slide 11 towards the bottom plate 3 and the fixed part of the mechanism 3a. By cooperating the eccentrics 14, 15 with the elastic elements 6, 17, a stable position of the alignment tips 5, 6 with the arms 8, 9 in the closed position is ensured. The resilient elements 46, 17 may be provided on their top side so that the projections on the underside of the eccentrics 44, 15 engage therein when closed.

The slide 11 has on its underside longitudinal bores 9, 20, which at one end always pass into a larger circular bore 21, 22. The circular bores 21, 22 serve to fit the slide to the heads of the pins 23, 24 which are fixed to a fixed part of the drive. 3a and serve as fixed beam supports 15. In the region of the longitudinal openings 19, 20, the heads of the pins 23, 24 project upwards, so that the slide 11 is guided in its displacement region, in which the slide 11 tilts the darkness 12 downwards by means of the inclined surface 13. or the tm 12 is released upward, thereby being pushed upward by the elastic force of the resilient elements 16, 7. In this way, the tilting part of the mechanism 2 is tilted upwards and the alignment tips 5, 6 and the arms 8, 9 of the tilting part of the mechanism 7 are opened apart. The blades can now be inserted or pulled out through the opening. Since the ram 11 is lifted only slightly with respect to the arms 8, 9, as opposed to the prior art control lever, it is possible not only to lay the leaves on the shifting tines 5, 6 but also on the arms 8, 9 in the open position. binder over functionality known in the prior art as two stacks of paper can be formed, which can be stabilized by fasteners and slid onto the shifting spikes 5, 6 or arms 8, 9, and are fixed against the top sheet by a fastener , eg in the form of a tension bar.

The vertical wall 25 bordering the inclined surface 13 is the limited area of movement of the slide 11 in the direction of arrow F, so that the slide 41 is fitted after the circular holes 21, 22 onto the pins 23, 24 and then moved against the direction of arrow F so the pin heads 23, 24 projecting into the longitudinal bores 19, 20 can only move in the region of the grooves formed by the longitudinal bores until it hits tm 12 on the wall 25, while the opposite movement is limited by either end of the longitudinal bores 19, 20 or wall 26 The slide 11 is moved by a grip ring 27 which is fixed at one of its outer ends and fixed in a rest position in which it pushes the tm 12 against the bottom plate 3 or the fixed part of the drive 3a.

-5GB 22850 Ul

The binder 1 has a hinged cap 28 (Figs. 7-14) on the free longitudinal side of the top plate 4, which can be pivoted about the hinged axis axis 28a against the top plate 4. On its side facing away from the hinged axis axis 28a, it has two rod-like reinforcements 29, 30 having a predominantly circular cross-section parallel to the hinged closure axis 28a, these serve as latches that can be snapped into latch 31, which is located on the free side of the bottom plate 3 in a closed state opposite the top plate 4.

The latch 31 is formed by a groove that is resilient and has a cross-section adapted to the cross-sectional shape of the thrust 29, 30. When the thrust 29, 30 is snapped into the latch 31 (Fig. 9), the resilient member 32 cooperates. As soon as the reinforcements 29, 30 are engaged in the latch 31, they spring back so that the reinforcements 29, 30 are fixed in the groove and, when closed, snap into the latch 31.

In the region of the inner side of the top plate 4 there is a resilient circular or similar blade holder 33 (Figs. 7, 15, 16) which, when the binder 1 is closed, pushes against the blades included in the binder 1 and thus functions as a clamp or stop is commonly used for securing the included sheets, and even in the technical design of the binder 1 such known stops 5 can also be used, supported against the alignment tips 5, 6 or the arms 8, 9.

The technical solution has in the upper part of the spine 2 a memory module 34 (Fig. 17, 18) or a small computer in a pocket 34a (Fig. 1) or another holder, in which the data related to the contents of the binder 1 is stored. The memory module 34 is equipped with a display 35 or an indicator. It also has controls, such as buttons 36, that are used to enter data or commands. In addition, it can be completed with 20 LEDs. An advantage is the connection of the memory module 34, for example in the form of a USB disk, wirelessly or via cable to a central computer or computer system. There is a socket on the memory module 34 or on the computer for cable connections.

The binder 1 has recesses (tabs) on the outside of the plate 3, 4 and the back 2. Also, a gripping opening 41 for gripping is located in the back of the file. The plates 3, 4 have recessed corners and / or internally reinforced plates corners on the outer 25 corners of the plates 3, 4, on the outside.

42, 43, which consist of a harder plastic material as compared to the remaining material. The gripping opening 41 is designed so that on the inside of the spine there is an opening with a small but sufficient finger grip to the package, for example in the form of inward protruding finger protection, preventing injury to paper or mechanical elements used to hold the sheets in the file 1. Both the grips 30 37 to 40 and the reinforced corners of the plates 42, 43 are roughened on the surface.

In particular, there are either magnetic elements on the hinged closure 28, or the closure is coated with magnetic material on the inside or consists entirely of magnetic material and can be rotated about its hinged axis 28a inwardly to the inside of the top plate 4 so that 46 integrated in the top plate 4 by its opposing polarity and thus remains retained on the inside of the plates. The advantage is that the hinged closure 28 for closing the binder 1 when placed in the rack does not bind when the binder 1 is used in the open state.

For greater stability and stability of the binder 1, it is possible to place in the hinge region between the spine 2 and the plates 3, 4 of the stiffener 47, for example in the form of protruding plastic elements.

Claims (31)

PROTECTION REQUIREMENTS 1. Binder (1), in particular for storing individual sheets of paper, cardboard or plastic, with the lower and upper plates (3, 4), the spine (2) connecting the plates (3, 4) and the mechanism mounted on the lower plate ( 3) for shifting the blades, the mechanism consisting of two shifting tines (5, 6), two arms (8, 9) which can be connected to these shearing tines and which are connected to the hinged part of the drive (7) and the control the mechanism for fastening 45 or loosening the arms (8, 9) with respect to the shifting spikes, characterized in that they engage -650 22850 U1 The furnace part of the mechanism (7) consists of a shaft on which a darkness (12) is attached, which can be released or fixed to the bottom plate (3) by a hand-operated slide mechanism. Binder (1) according to claim 1, characterized in that the sliding mechanism consists of a slide (11), which can be moved in the groove fastening. Binder (1) according to claim 2, characterized in that the sliding mechanism further comprises at least one pin (23, 24) mounted on the bottom plate (3) and a longitudinal bore (19, 20) mounted on the slide (11), which is in cooperation with the pin (23, 24). Binder (1) according to claim 3, characterized in that the first guide element has pins (23, 24) at its free ends with reinforcements through which the pins (23, 24) project into the second guide element formed as a longitudinal bore (23). 19.20). Folder (1) according to claim 4, characterized in that the longitudinal openings (19, 20) are enlarged at one end in the direction of the slide (11) in the shape of a circular opening (21, 22) to pass the thickened pins. (23, 24). Binder (1) according to one of Claims 1 to 5, characterized in that the slide (11) has an inclined surface (13) on which it is pressed or released from the bottom plate (3) by sliding the slide (11). (12) shafts (10). Binder (1) according to one of Claims 1 to 6, characterized in that the tm (12) is fixed by a slide (11) against the resilient force with respect to the bottom plate (3). Binder (1) according to claim 7, characterized in that the shaft (10) is pressed by at least one eccentric (14,15) to the spring element (16, 17) on the bottom plate (3). Binder (1) according to claim 8, characterized in that two eccentrics (14, 15) are disposed at the ends of the shaft (10) for snapping onto the resilient elements (16, 17) located on the bottom plate (3). Binder (1) according to claim 9, characterized in that each of the elastic elements (16, 17) has a notch on the upper side for pushing the eccentric (14, 15) in the fixed position of the slide (11). Binder (1) according to claims 2 to 10, characterized in that a manually gripping element, in particular a grip ring (27), is provided on the slide (11) for moving the slide (11) in the groove. Binder (1) according to claims 2 to 11, characterized in that the slide (11) consists at least partially of a solid plastic. Binder (1) according to one of Claims 1 to 12, characterized in that the fixed parts of the mechanism - the adjusting spikes (5, 6) are fixed or inclined with respect to the lower plate (3). A binder (1), in particular for spooling individual sheets of paper, cardboard or plastic, with a bottom and a top plate (3, 4), with a spine (2) connecting these plates (3, 4) and a mechanism attached to the bottom plate (3) for inserting sheets, in particular according to claims 1 to 13, wherein the binder (1) has a closure on the opposite side of the spines for connecting the lower and upper plates, characterized in that a hinged closure (28) hinged about a longitudinal side of the plate which is connectable on its free side by a first magnetic element disposed thereon with another magnetic element positioned in the region of the free side of the second plate, the two magnetic elements being connectable to each other by magnetic poles. - 7CZ 22850 Ul 15. A binder (1), in particular for spooling individual sheets of paper, cardboard or plastic, with a lower and upper plate (3, 4), with a spine (2) connecting the plates (3, 4) and a mechanism attached to the lower plate (3) for inserting sheets, in particular according to claims 1 to 13, wherein the binder (1) has a closure on the opposite side of the spine for connecting the lower and upper plates, characterized in that a hinged closure (28) is located on the upper plate (4). rotatable about the free longitudinal side of the top plate (4), which is lockable by a longitudinal flap with the longer side of the plates and connectable on its free side to the free side of the bottom plate (3). Binder (1) according to claim 15, characterized in that the hinged closure (28) on its free side has at least one reinforcement (29, 30) having a cross-section, which is largely circular in shape, as a latch of the closure. The binder (1) according to claim 16, characterized in that the thicken (29, 30) of the hinged closure (28), after being pushed and snapped into place, engages in a latch (31) mounted on the free side of the bottom plate (3) which is resilient. shaped in accordance with the first cross-section, in the latch there is a second cross-section, which is predominantly circular in shape. Binder (1) according to claims 15 to 17, characterized in that the hinged closure (28) is biased due to resilient elements located in the region of the hinged closure axis (28a), in particular due to the rubber stops. Binder (1), in particular for spooling single sheets of paper, cardboard or plastic, with a bottom and top plate (3, 4), with a spine (2) connecting these plates (3, 4) and a mechanism attached to the bottom plate (3) for inserting sheets, in particular according to one of claims 1 to 18, characterized in that the binder (1) is equipped with an electronic computer or a memory module which is mounted in a support element on the back (2) or the bottom or top plate. (3, 4) binders. Binder (1) according to claim 19, characterized in that the computer or memory module is located on the back (2) in the pocket (34a) or is held there by a magnetic holder with magnetic elements. Binder (1) according to claim 19 or 20, characterized in that the computer or memory module (34) is located on the inside of the spine (2). Binder (1) according to claims 19 to 21, characterized in that the back (2) is designed such that the surface of the computer or memory module (34) is flush with the surface of the back (2). Binder (1) according to one of Claims 19 to 22, characterized in that the computer or memory module (34) comprises means for connecting wirelessly or by cable to a computer or a computer network. Binder (1) according to one of Claims 19 to 23, characterized in that the computer or memory module (34) is equipped with a display (35). Binder (1) according to one of Claims 19 to 24, characterized in that the computer or memory module (34) is provided with an acoustic signal emitting unit, in particular a piezo acoustic transducer and / or a light-emitting optical signal unit. A file (1) according to any one of claims 1 to 25, characterized in that it is provided in the region of the spine (2) and / or the plates (3, 4) primarily in the vicinity of the free longitudinal sides of the plates (3, 4) with at least one grip (37, 38, 39, 40) and / or cutout. -8E 22850 Ul Binder (1) according to one of Claims 1 to 26, characterized in that the lower and upper plates (3, 4) at the outer edges, in particular the lower edges, in particular in the region of the lower corners and / or the upper corners, are provided with a plastic part which is stronger compared to the material of the surfaces of the plates (3, 4) and / or of the spine (2). 5 Binder (1) according to claim 27, characterized in that the reinforced corners (42, 43) of the plates in the region or near the edges and / or corners have a greater thickness than the surfaces of the plates (3, 4). Binder (1) according to one of Claims 1 to 28, characterized in that it is provided on the inside of the top plate (4) with a leaf holder (33) which, when closed, compresses the leaves in the binder (1). ίο Binder (1) according to one of Claims 1 to 29, characterized in that it has an opening or grip opening (41) on the outside of the back (2), which is terminated relative to the inside of the binder on the inside of the back (2) fastened finger protection (44). Binder (1) according to one of Claims 1 to 30, characterized in that the hinged closure (28) is attachable by magnets (45, 46) or by another holder on the inner side of the plate 15 (3,4), on whose outer edge is based.