EP2644065B1 - Letterbox structure for letterbox facilities - Google Patents

Description

The present invention relates to a mailbox for mailboxes, letter-throws and the like according to the preamble of independent claim 1.

Such a letter is through the document GB 2 472 010 A known.

Mailboxes for receiving incoming mail in the entrance area of residential buildings are well known in a variety of designs. Often they are self-contained boxes that z. B. are to be mounted on a wall surface of a building in the outer entrance area. Furthermore, mailboxes are also often installed in larger systems and sometimes combined with bell buttons and / or other functional components. Such systems can be installed in a wall area adjacent to a front door or as free-standing systems in front of a building. In this context, certain requirements for letterboxes and letterbox systems are specified in the relevant, EU-wide binding standard EN 13724.

In known Briefeinwürfen the flap is often mounted on patch hinges so that it protrudes in its closed position of the rest of the box surface. Furthermore, embodiments are also known, wherein the flap in the insertion opening is mounted on laterally projecting bearing axes, which for example also for the above publication GB 2 472 010 A applies.

The present invention is based on the object, to create a pleasing appearance appearance of a letter insert the beginning described, generic type so that it is with its closed flap in the immediate vicinity, ie with only small gap distances, mounted to adjacent functional components and then a front visible surface of the flap in its closed position in a common plane with front surfaces of the adjacent components. Nevertheless, while the largest possible pivot angle between the closed position and the open position should be possible.

According to the invention, this object is solved by the features of independent claim 1. Advantageous developments and design features of the invention are contained in the dependent claims as well as in the subsequent description.

The flap bearing is accommodated in a flap edge area parallel to the geometric pivot axis within the material cross section of the flap so that, during pivoting movements of the flap, its edge region rotates about the pivot axis without lateral displacement perpendicular to the pivot axis. Thus, the edge region of the flap is relative to the Einwurfträger - apart from the rotation - out in a stationary manner, so that during the pivoting movements of the flap the respective distance to adjacent functional components is maintained. As a result, very small gap distances, in particular in the range of only 1 mm, without affecting the pivoting movements of the flap can be realized. The fact that the geometric pivot axis runs very close to the outer edge boundary of the flap, yet even with such a small gap distance, a large swing angle can be achieved, which in any case is greater than 90 ° and can advantageously be up to 120 °.

According to the invention, it is provided in a constructive respect that the flap bearing of at least two distributed over the edge region of the flap in the direction of the pivot axis and from each other spaced pivot bearings is made, each pivot bearing has a fixed to the insertion support and engaging through a peripheral opening in a formed within the insertion flap bearing receiving axle portion, wherein the axle portions of the pivot bearings are aligned with their longitudinal axes on the geometric pivot axis or jointly define the pivot axis. The geometric pivot axis thus also runs through the special arrangement of the axle sections also within the edge region of the flap. In this case, it is furthermore particularly advantageous if the edge region of the insertion flap which receives the flap bearing has a convexly circular-arc-rounded rounded edge outer surface which is coaxial with the pivot axis. Consequently, this circular arcuate edge outer surface extends, starting from the front visible surface of the flap, at least over half a circumference to the rear of the flap. The flap bearing is advantageously designed so that the geometric pivot axis runs as close to the outer flap boundary; Thus, the radius of curvature of the circular-arc-shaped edge outer surface measured from the pivot axis is preferably only 2 mm to a maximum of 3 mm.

For the installation of the flap bearing, the flap is expedient at least two layers of a base part and a front part, wherein the base part and the front part are formed in the region of the pivot bearing as bearing shells, which form between them the bearing receivers for the axle sections of the pivot bearing. The front part can preferably be made as a "design element" of metal, in particular of stainless steel or aluminum, wherein the front part as a bearing shell has only a marginal, folded web which extends over the entire length or width of the flap. In this case, the inner contour of the bearing receptacles is formed mainly in the base part by a corresponding shape, which is why the base part is preferably formed as a plastic molding. For mounting, the pivot bearings are first used with the Achsabschnitten in the bearing mounts of the base part. Then the front part is connected to the base part, glued in particular, whereby the bearing receptacles are closed so that the axle sections of the pivot bearings are held rotatably.

In connection with the flap bearing according to the invention, it is furthermore advantageous if the throw-in support has a projecting guide web adjoining the edge region of the flap which has the flap bearing with a guide surface which is rounded in a concave circular arc in cross-section. This guide surface extends - also coaxial with the geometric pivot axis - over a quarter circle circumference.

Fig. 1

eine Perspektivansicht auf einen erfindungsgemäßen Briefeinwurf in der Schließlage der Einwurfklappe in einer beispielhaften Montagesituation mit angrenzenden Funktionskomponenten,

Fig. 2

eine Ansicht wie in Fig. 1 mit in ihre Öffnungslage verschwenkter, die Einwurföffnung freigebender Einwurfklappe,

Fig. 3

eine vergrößerte und teilgeschnittene Seitenansicht in Pfeilrichtung III gemäß Fig. 1,

Fig. 3a

eine Ausschnittvergrößerung aus Fig. 3 im Bereich der Klappenlagerung,

Fig. 4

eine gesonderte Perspektivdarstellung nur des erfindungsgemäßen Briefeinwurfs in der Öffnungslage,

Fig. 5

eine gesonderte Perspektivansicht nur der Einwurfklappe auf ihre Innenseite,

Fig. 6

eine perspektivische Explosionsdarstellung der Einwurfklappe mit ihren Einzelteilen,

Fig. 7

eine vergrößerte Detailansicht von Bestandteilen der Einwurfklappe zur Erläuterung der Montage der Klappenlagerung,

Fig. 8 und 9

weitere Perspektivansichten bestimmter Einzelteile des erfindungsgemäßen Briefeinwurfs,

Fig. 10

eine Vorderansicht des erfindungsgemäßen Briefeinwurfs beispielhaft in Kombination mit einem vertikal unterhalb montierten Brief-Aufnahmefach und

Fig. 11

eine Vorderansicht des erfindungsgemäßen Briefeinwurfs beispielhaft für eine Anwendung mit einem horizontalen, hinter der Einwurföffnung liegenden Aufnahmefach.

With reference to the drawings and illustrated therein, preferred embodiments and examples of application, the invention will be explained in more detail below. Show it:

Fig. 1

a perspective view of a letter insertion according to the invention in the closed position of the flap in an exemplary installation situation with adjacent functional components,

Fig. 2

a view like in Fig. 1 pivoted in its open position, the insertion opening releasing flap,

Fig. 3

an enlarged and partially sectioned side view in the direction of arrow III according to Fig. 1 .

Fig. 3a

a cutout enlargement Fig. 3 in the field of valve storage,

Fig. 4

a separate perspective view of only the letter insert according to the invention in the open position,

Fig. 5

a separate perspective view of the flap only on its inside,

Fig. 6

an exploded perspective view of the flap with their individual parts,

Fig. 7

an enlarged detail view of components of the flap to explain the installation of the flap bearing,

8 and 9

Further perspective views of certain items of the letter insert according to the invention,

Fig. 10

a front view of the letter insert according to the invention by way of example in combination with a vertically mounted underneath letter tray and

Fig. 11

a front view of the letter insert according to the invention by way of example for an application with a horizontal, behind the insertion opening receiving compartment.

In the various figures of the drawing, like parts are always provided with the same reference numerals.

For the following description, it is expressly emphasized that the invention is not limited to the exemplary embodiments and not all or several features of described combinations of features, but each individual feature of the / each embodiment can also be detached from all other partial features described in connection therewith and also in combination with any features of another embodiment as well as independently of the feature combinations and relationships of the claims have an inventive meaning.

As is apparent from the first Fig. 1 to 4 results, there is an inventive letter insert 1 from a throw-in carrier 2 with a narrow, slit-shaped letter-insertion opening 4 (see Fig. 2 and 4 ) as well as from an insertion flap 6. This insertion flap 6 is mounted on the flap carrier 8 via a flap bearing 8 such that it lies between a closing position covering the throw - in opening 4 (see FIG Fig. 1 and 3 ) and the opening opening 4 releasing opening position (see Fig. 2 and 4 ) is pivotable about a geometric pivot axis 10. The pivoting movement of the flap 6 is in Fig. 2 . 3 and 4 each illustrated by a double arrow 12. The geometric pivot axis 10 is in Fig. 4 to 7 each indicated by a dashed line. Moreover, in Fig. 3 the maximum swivel angle between the closed position and the open position is entered as angle α. In the sectional view in Fig. 3 the geometric pivot axis 10 is perpendicular to the plane of the drawing, so that it can only be seen as a point around which the illustrated with the double arrow 12 pivoting movement takes place.

The flap bearing 8 is housed in a corresponding to the course of the pivot axis 10 aligned, so practically parallel to the pivot axis 10 flap edge region within the material cross section of the body of the flap 6, that during the pivoting movements of the flap 6 whose edge region without lateral, perpendicular to the pivot axis 10 Displacement about the pivot axis 10 rotates. Thus, the flap bearing 8 is integrated into the flap 6, so that outside of the visible front surface area of the flap 6 no bearing parts survive. As a result, the letter insert 1 according to the invention Fig. 1 and 2 be mounted as "insertion module" that the flap 6 directly adjacent to other functional parts over only a small gap distances. This applies to their upper and lower limits as well as to the lateral, left and right boundaries.

In the illustrated, inventive embodiment, the flap bearing 8 consists of at least two, for example, as shown five, over the edge region of Insert flap 6 in the direction of the pivot axis 10 evenly distributed and spaced from each other arranged pivot bearings 14 (see in particular 4 and 5 and also Fig. 7 ). Each pivot bearing 14 has a fixed to the insertion support 2 and formed by a peripheral opening in a formed within the flap 6 storage receptacle 16 - see in particular Fig. 7 - engaging axle 18 on. The axle sections 18 of all pivot bearings 14 define together with their longitudinal axes 18a (FIG. Fig. 6 and 7 In other words, all shaft sections 18 are aligned with their longitudinal axes 18a on the pivot axis 10. Due to the integrated arrangement of the axle 18 within the edge region of the flap 6 thus also the geometric pivot axis 10 extends within the flap 6 in the edge region.

As can be seen in particular Fig. 3 . 5 and 7 shows that the flap bearing 8 receiving edge region of the flap 6 with advantage seen in cross section a convex circular arc rounded and coaxial with the pivot axis 10 edge outer surface 20. This circular arcuate edge outer surface 20 connects directly to the front, planar surface 22 of the flap 6 and extends over a circumferential angle of at least 180 °, ie over at least one semicircle to the back of the flap flap 6, see in particular Fig. 3 , It can also be seen from this illustration that during a pivoting movement of the insertion flap 6 in the double arrow direction 12, the edge region receiving the flap bearing 8 only rotates about the pivot axis 10.

How to continue Fig. 3 . 8 and 9 shows, the throw-in carrier 2 has a to the flap bearing 8 having edge portion of the flap 6 adjacent, projecting guide bar 24 with a concave in cross-section arcuate in adaptation to the edge outer surface 20 of the flap lid 6 rounded guide surface 26. This guide surface 26 extends in the circumferential direction over 90 °, ie over a quarter circle. This is especially on the excerpt magnification in Fig. 3a directed.

According to Fig. 5 and 6 the flap 31 is at least two layers of a base part 30 and a front part 32. The base part 30 and the front part 32 are formed in the region of the integrated pivot bearing 14 as a bearing shells, which form the bearing receivers 16 for the axle 18 between them. According to Fig. 7 can be used in the not yet connected state of the parts 30, 32 in the bearing receivers 16, the axle portions 18 of the pivot bearing 14. Thereafter, the bearing receivers 16 are closed by joining the parts 30, 32. The arcuate convex edge outer surface 20 is then proportionately, each about half, formed by the base part 30 and the front part 32.

The front part 32 preferably consists as a design element of a metal sheet, in particular of stainless steel or aluminum. In the area of the integrated flap bearing 8, the front part 32 has only a bent edge web 34, which extends in cross-section approximately over a quarter circle arc. The base web 30 is preferably formed as a plastic molding, and the inner contours of the bearing receivers 16 are formed by molding mainly within the base member 30. Also this is especially on Fig. 7 directed.

In principle, the base part 30 and the front part 32 can be connected together in any desired manner. Preferably, the front part 32, the base part 30 covering the surface materially connected to the latter materially bonded, in particular glued by means of a suitable adhesive.

In a further advantageous embodiment, the axle portion 18 of each pivot bearing 14 is part of a separate bearing part 36 so that five bearing parts 36 are provided in the preferred embodiment with five pivot bearings 14. The individual bearing parts 36 are attached to the insertion support 2, in particular screwed. Each bearing part 36 is according to Fig. 7 as an angle piece with one end of the axle portion 18 having bearing leg 36a and a particular rectangular attachment leg 36b formed. The bearing leg 36a is inserted from the rear side of the base part 30 pointing away from the front part 32 through a peripheral cutout 38 of the base part 30 with the axle section 18 into the bearing receptacle 16. The fastening leg 36b then extends, starting from the bearing leg 36a, perpendicularly to the flap carrier 2 and in particular through a holding opening 40 and is fastened to the rear side of the flap carrier 2 by means of a retaining screw 42. The retaining screws 42 are with respect to their screw axes 42 a (see Fig. 3 ) aligned parallel to the flap support 2 and also to the front surface 22 of the flap 6 in its closed position and extend through aligned mounting holes of the flap carrier 2 and the mounting leg 36 b of the respective bearing part 36th

In a further expedient embodiment, the insertion flap 6 in its flap region 8 opposite edge region on a front handle bar 44, which is fastened in particular via screw 46. This is in particular on Fig. 4 combined with Fig. 6 Reference is made, according to which the screw 46 consist of screws 46 a, which are screwed through aligned openings 46 b and 46 c of the base member 30 and the front part 32 into unrecognizable threaded holes of the handle bar 44.

How to get out Fig. 1 and 2 as well as out 10 and 11 shows, the throw-in carrier 2 to the closed flap flap 6 on the flap bearing 8 opposite, lower side adjacent surface area 50, with the front surface 22 of the flap 6 in its closed position over a narrow gap distance of about 1 mm in a common System front level 52 is located. This will be on Fig. 3 directed. The indication "about 1 mm" means that the gap width is - apart from any tolerance deviations - 1 mm, but also in case of tolerance deviations at least in Range between 0.5 mm and 1.5 mm and preferably between 0.8 mm and 1.2 mm.

The adjoining the flap 6 surface area 50 is at least partially formed by a labeling part 54. As it turned out Fig. 9 results, it may be a particular engraved nameplate 54a or a shield support 54b for releasably holding a label. Advantageously, the inscription part 54 can be detachably fixed and, in particular, via a magnet holder. In addition, the area covered by the inscription part 54 can be illuminated from the inside of the insertion carrier 2 via a light source arranged there.

Furthermore, it is provided that the area adjoining the flap 6 surface area 50 is at least partially formed by a strip-shaped facing part 56 which is glued in particular with the insertion carrier 2.

The inscription part 54 and the veneering part 56 are adapted to the respective design, in particular material, in the area of the front surface 22 of the insertion flap 6.

In a further embodiment, the throw-in carrier 2 has a lock 58 - see Fig. 9 - For locking and unlocking a letter removal not shown on. The type of lock 58 is basically arbitrary. It may be a mechanical lock, but also an electromechanical or electromagnetic lock. The lock 58 can be locked by means of a key 60 (FIG. Fig. 9 ) are mechanically operated, but in principle also sensory, keyword "keyless" (key-free). In the illustrated embodiment, the lock 58 is a key lock, which is unlocked by a simple insertion movement of the key 60. In this case, the surface area 50 adjoining the insertion flap 6 has a slot-shaped and vertically aligned key opening 62 for passing through the socket wrench 60.

The type of unlockable by means of the lock 58 letter removal is also arbitrary.

The key opening 62 results in the advantageous possibility of illuminating this area from the inside of the insertion carrier 2 via a light source arranged there. This means that light of the illuminant is visible through the keyhole 62 from the front visible side. As a result, the illuminant can be driven, for example, for occupancy detection via suitable control means to signal whether a letter record is empty or occupied. This can be done, for example, with different colored light. Furthermore, any other functions can be signaled, for example, the operating state of a building alarm system.

It is also advantageous if the insertion flap 6 is releasably locked in its closed position. This protection against rattling, for example by wind, is achieved. In the illustrated, preferred embodiment, a magnetic fixation is provided for this purpose. For this purpose, at least one magnet 64, which cooperates with a ferromagnetic surface region 66 of the insertion flap 6, is arranged on the insertion carrier 2. This is in particular on Fig. 4 directed. As complementary Fig. 6 results, the ferromagnetic surface region 66 is preferably formed by a piece of a metal sheet 66a, said sheet metal piece 66a is inserted into a pocket-like receptacle of the base part 30 of the flap 6.

In a further embodiment, the insertion flap 6 has on its inside a seal 68 for sealing engagement in the letter insertion opening 4 of the insertion carrier 2. By the seal 68 on the one hand a seal against ingress of moisture and dirt is achieved and on the other hand, a thermal insulation. As is special Fig. 6 results, the seal 68 is elongated frame-like formed of an elastomeric material. In this case, the seal 68 is held by a retaining strip 70 by the retaining strip 70 under Liner of the seal 68 is screwed to the base member 30. With the seal 68 engages the insertion flap 6 in its closed position non-positively and / or positively in the insertion opening 4 and circumferentially acts sealingly with the opening edge together.

Furthermore, the insertion flap 6 on its inner side damper elements 72 for damping the stop in the pivoting movement from the open position to the closed position. The damper elements 72 may advantageously be one-piece, tab-like projections of the seal 68. For damping the damper elements 72 act on closing force-fit or kraftformschlüssig with the opening edge of the insertion opening 4 together.

With regard to the above-mentioned standard DIN EN 13724, the insertion carrier 2 in the area of the letter insertion opening 4 on a removal protection 74 in particular in the form of an inwardly projecting web on the lower opening side.

The letter insert 1 according to the invention can be combined as a throw-in module with any mailbox systems. For example, according to Fig. 10 below the letter box 1 a box-shaped receiving part 76 are arranged. The receiving part 76 is used for vertical letter recording, so that it requires only a small depth. In the alternative according to Fig. 11 can the letter slot 1 with a horizontally underlying tray 77 are combined, which is designed with greater depth to horizontal letter recording, see also Fig. 1 to 3 , The letter slot 1 can also be combined with a so-called wall passage, a shaft-shaped wall bushing.

In particular, for the modular design and use, it is advantageous if the insertion support 2 - in particular two lateral screws 78 (see 8 and 9 ) - on a system support 80 - see Fig. 1 to 3 - It can be fastened that further attached to the system tray 80 functional components 82, such as bell buttons and / or door communication devices, as well as the Insert flap 6 lie with their respective front visible surfaces in the same common system front plane 52. In this case, all the functional components 82 and also the components of the letter board 1 according to the invention are spaced apart from each other only over narrow gap distances of preferably approximately 1 mm without additional frame parts. This results in a very attractive design in a flush and frameless arrangement of all functional components. Nevertheless, the inventive storage of the flap 6 allows a large maximum swing angle α until the flap 3 collides in its maximum open position with the gap spaced over the adjacent functional component 82. According to Fig. 3 the angle α is up to about 120 °, but in any case> 90 °.

Despite the frameless on the front side view arrangement and the gap distances formed here is advantageously ensured by the flap 6 and the sealing engagement of the seal 68, a tight closure of the insertion opening 4 against ingress of moisture and dirt from the outside. This makes it harmless if through the column moisture such. B. control water, passes.

Claims (23)

1. A letter slot (1) for mailboxes, letterboxes and the like, consisting of a letterplate (2) with a letter slot opening (4) and of a slot flap (6) which is pivotably mounted about a pivot axis (10) via a flap mounting (8) between a closed position covering the slot opening (4) and an opening position which releases the slot opening (4), wherein the flap mounting (8) is accommodated in such a way in a flap edge region parallel to the pivot axis (10) within the material cross-section of the slot flap (6) that upon pivoting movements of the slot flap (6) the edge region thereof rotates without lateral displacement perpendicular to the pivot axis (10) about the pivot axis (10), characterised in that the flap mounting (8) consists of at least two pivot bearings (14) arranged distributed over the edge region of the slot flap (6) in the direction of the pivot axis (10) and spaced apart from each other, each pivot bearing (14) having a spindle section (18) fastened to the letterplate (2) and engaging through a marginal opening into a bearing receptacle (16) formed within the slot flap (6), the spindle sections (18) lying with their longitudinal axes (18a) aligned on the pivot axis (10).
2. A letter slot according to Claim 1, characterised in that the flap mounting (8) consists of a plurality of, in particular five, pivot bearings (14) of the same type uniformly spaced apart from each other.
3. A letter slot according to Claim 1 or 2, characterised in that the flap edge region which receives the flap mounting (8), viewed in cross-section, has an arcuately rounded-off outer edge surface (20) which is coaxial to the pivot axis (10).
4. A letter slot according to one of Claims 1 to 3, characterised in that the letterplate (2) has a guide crosspiece (24) adjoining the edge region of the slot flap (6) which has the flap mounting (8), with a guide face (26) which is rounded off concavely and arcuately in cross-section.
5. A letter slot according to one of Claims 1 to 4, characterised in that the slot flap (6) consists of at least two parts, of a base part (30) and a front part (32), the base part (30) and the front part (32) being formed in the region of the pivot bearings (14) as bearing shells which form between them the bearing receptacles (16) for the spindle sections (18).
6. A letter slot according to Claim 5, characterised in that the front part (32) is connected to the base part (30) in a material lock, in particular is glued.
7. A letter slot according to one of Claims 1 to 6, characterised in that the spindle section (18) of each pivot bearing (14) is a component of a separate bearing part (36), the individual bearing parts (36) being fastened, in particular screwed, to the letterplate (2).
8. A letter slot according to Claim 7, characterised in that each bearing part (36) is formed as an angled piece with a bearing arm (36a) having on the end side the spindle section (18) and a fastening arm (36b), the bearing arm (36a) being inserted into the bearing receptacle (16) from the rear side, pointing away from the front part (32), of the base part (30) through a marginal cutout (38) in the base part (30) with the spindle section (18), and with the fastening arm (36b), starting from the bearing arm (36a), extending perpendicularly to the flap support (2) and in particular through a holding opening (40) and being fastened by means of a holding screw (42).
9. A letter slot according to Claim 8, characterised in that the holding screw (42) with respect to its screw axis (42a) extends parallel to the flap support (2) through aligned mounting holes of the flap support (2) and the fastening arm (36b) of the bearing part (36).
10. A letter slot according to one of Claims 1 to 9, characterised in that the slot flap (6) in its edge region which lies opposite the flap mounting (8) has a front grip bar (44) which is fastened in particular via screw connections (46).
11. A letter slot according to one of Claims 1 to 10, characterised in that the letterplate (2) has a surface region (50) which adjoins the slot flap (6) on its side located opposite the flap mounting (8), which region with the front surface (22) of the slot flap (6) in the closed position thereof lies in a common system front plane (52) over an only narrow gap spacing.
12. A letter slot according to Claim 11, characterised in that the surface region (50) adjoining the slot flap (6) is formed at least proportionately by an inscription part (54), this region being able to be illuminated in particular from the inside.
13. A letter slot according to Claim 11 or 12, characterised in that the surface region (50) adjoining the slot flap (6) is formed at least proportionately by a facing part (56) - in particular glued to the letterplate (2).
14. A letter slot according to one of Claims 1 to 13, characterised in that the letterplate (2) has a lock (58) for locking and unlocking a letter retrieval means.
15. A letter slot according to Claim 14, characterised in that the lock (58) is formed as a mechanical key lock, the surface region (50) of the letterplate (2) which adjoins the slot flap (6) having a key opening (62) for guiding a key (60) through.
16. A letter slot according to Claim 15, characterised in that the key opening (62) can be illuminated from the inside.
17. A letter slot according to one of Claims 1 to 16, characterised in that the slot flap (6) is releasably locked in its closed position, in particular is magnetically fixed.
18. A letter slot according to Claim 17, characterised in that at least one magnet (64) is arranged on the letterplate (2), which magnet cooperates with a ferromagnetic surface region (66) of the slot flap (6) in the closed position thereof.
19. A letter slot according to one of Claims 1 to 18, characterised in that the slot flap (6) has on its inside a seal (68) for sealing engagement in the letter slot opening (4) of the letterplate (2).
20. A letter slot according to one of Claims 1 to 19, characterised in that the slot flap (6) has on its inside damper elements (72) for stop damping upon the pivoting movement out of the opening position into the closed position.
21. A letter slot according to one of Claims 1 to 20, characterised in that the letterplate (2) has an anti-removal means (74) in the region of the letter-slot opening (4).
22. A letter slot according to one of Claims 1 to 21, characterised in that the letterplate (2) can be fastened - in particular by means of two lateral screws (78) - in such a way to a system support (80) that further functional components (82) fastened to the system support (80) and also the slot flap (6) lie with their respective front visible surfaces and with only narrow gap spacings in a common system front plane (52).
23. A letter slot according to one of Claims 1 to 22, characterised by a modular configuration for combination with different mailboxes, through-wall letterboxes and/or letter retrieval systems.

Images