Receiving and pick-up arrangement with a foldable housing and method for receiving and picking-up postal items

Abstract

A receiving and pick-up arrangement for postal items with a foldable housing. When the arrangement is not in use, the housing can be folded up to save space. For this purpose, the side walls are foldable, so that the side walls are arranged or stowed between the top wall and the bottom wall in the folded up state. In the folded up state, the arrangement does not have a receiving chamber for receiving postal items. In operation, the housing is unfolded. In the unfolded state of the housing, the postal item can be placed into the receiving chamber then formed between the side walls via the first opening or the second opening and removed again at a later stage. Also, a method for receiving and a method for picking up a postal item with such an arrangement.

Claims

1. A receiving and pick-up arrangement for postal items with a housing comprising a top wall, a bottom wall and two side walls, wherein the two side walls are each connected in an articulated manner along a first hinge axis to the top wall and along a second hinge axis to the bottom wall, and wherein the two side walls each comprise at least two side wall parts, which are foldable connected to one another along a folding axis, wherein the first hinge axes, the second hinge axes, and the folding axes are arranged parallel to one another, so that the housing is foldable into a folded up state, in which the two side walls are folded up between the top wall and the bottom wall, and into an unfolded state, in which the two side walls are arranged perpendicular to the top wall and the bottom wall and a receiving chamber for receiving the postal items is delimited between the top wall, the bottom wall and the two side walls, wherein the housing has in the unfolded state a closeable first opening at a first front face and a closeable second opening at a second front face, wherein the first opening is arranged at a first end of the housing and the second opening is arranged at a second end of the housing, wherein the first end and the second end are arranged opposite one another in a direction of the first hinge axes, and a holder for pivotally mounting the housing on a stationary component about a pivot axis, wherein the pivot axis is arranged parallel to the bottom wall and at the first end of the housing.

2. The receiving and pick-up arrangement according to claim 1, wherein the receiving and pick-up arrangement comprises an installation frame for insertion in a recess of the stationary component, wherein the first end of the housing faces the installation frame.

3. The receiving and pick-up arrangement according to claim 1, wherein the receiving and pick-up arrangement comprises an adjustment device for unfolding and folding up the housing along a vertical axis, wherein the adjustment device adjusts and guides the top wall or the bottom wall of the housing from the folded up state to the unfolded state, and vice versa.

4. The receiving and pick-up arrangement according to claim 1, wherein the receiving and pick-up arrangement comprises a deposit belt, which in the unfolded state extends between the first opening and the second opening and delimits the receiving chamber at the bottom, and a belt drive for driving the deposit belt.

5. The receiving and pick-up arrangement according to claim 1, wherein the receiving and pick-up arrangement comprises a first device for closing and opening the first opening and/or a second device for closing and opening the second opening.

6. The receiving and pick-up arrangement according to claim 1, wherein the housing comprises a base part having the top wall, the bottom wall and the two side walls, and wherein the housing comprises an extension part.

7. The receiving and pick-up arrangement according to claim 6, wherein the receiving and pick-up arrangement comprises a displacement device for axially displacing the extension part relative to the base part, so that the extension part can be displaced parallel to the first hinge axes into a first position, in which the receiving chamber has a first volume, and into at least one second position, in which the receiving chamber has a second volume, which is increased relative to the first volume.

8. The receiving and pick-up arrangement according to claim 6, wherein the extension part comprises a further top wall, a further bottom wall and two further side walls, the two further side walls are each hinged along a third hinge axis to the further top wall and along a fourth hinge axis to the further bottom wall, the two further side walls each have at least two own side wall parts, which are connected in a foldable manner to each other along another folding axis, wherein the third hinge axes and the fourth hinge axes as well as the other folding axes are aligned parallel to each other and thus also parallel to the first hinge axes, the second hinge axes and the folding axes of the base part so that the extension part is foldable.

9. A method for receiving postal items comprising the following steps: providing the receiving and pick-up arrangement according to claim 1, wherein the housing is arranged in the folded up state; identifying a postal item located outside the receiving chamber with an electronic component, including at least one of a control unit, a touch display, a key pad, a sensor and a camera; transferring the housing into the unfolded state; unlocking of the first opening after successful identification of the postal item; checking, whether the first opening is closed; unlocking of the second opening when the first opening is closed; and closing the second opening.

10. A method for pick-up postal items comprising the following steps: providing the receiving and pick-up arrangement according to claim 1, wherein the housing is arranged in the folded up state; transferring the housing into the unfolded state; unlocking of the second opening; closing the second opening; identifying a person authorized to pick-up standing in front of the first opening with an electronic component, including at least one of a control unit, a touch display, a key pad, a sensor and a camera; unlocking of the first opening when the person authorized to pick-up has been successfully identified and the second opening is closed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Preferred embodiments of the invention are shown in the drawings and described below.

(2) FIG. 1 shows is a perspective view of a receiving and pick-up arrangement according to a first embodiment in a rest position in which a housing of the receiving and pick-up arrangement in the folded up state is pivoted up about a pivot axis;

(3) FIG. 2 shows a perspective view of the receiving and pick-up arrangement from FIG. 1 in an intermediate position in which the folded up housing is pivoted downwards;

(4) FIG. 3 shows a perspective view of the receiving and pick-up arrangement from FIG. 1 in a further intermediate position, in which the housing pivoted downwards is unfolded;

(5) FIG. 4 shows a perspective view of the receiving and pick-up arrangement from FIG. 1 in an operating position, with a second opening of the housing open;

(6) FIG. 5 shows a perspective view of the receiving and pick-up arrangement from FIG. 1 in the operating position, with the second opening of the housing closed;

(7) FIG. 6 shows a partial perspective view of the receiving and pick-up arrangement from FIG. 1 in the operating position, with a first opening of the housing opened;

(8) FIG. 7 shows a partial perspective view of the receiving and pick-up arrangement of FIG. 1 from diagonally below, the receiving and pick-up arrangement being shown in an intermediate position between the folded up state and the unfolded state;

(9) FIG. 8 shows a perspective view of the receiving and pick-up arrangement from FIG. 1 in an operating position, with the second opening of the housing open; and

(10) FIG. 9 shows a perspective view of a receiving and pick-up arrangement according to a second embodiment in the operating position.

DETAILED DESCRIPTION OF THE INVENTION

(11) FIGS. 1 to 8 show a receiving and pick-up arrangement for postal items 40 according to an embodiment of the present invention. The receiving and pick-up arrangement is mounted in a recess 1 of a stationary component 2, here a door leaf of an entrance door to an apartment. In principle, the receiving and pick-up arrangement could also be attached to another stationary component with a recess formed therein, such as a building wall, for instance an interior or exterior wall, a basement wall, a window, a housing wall of a floor-standing housing. The receiving and pick-up arrangement is used, on the one hand, to receive postal items 40 in the absence of the addressee. For this purpose, a deliverer coming from an outside area 3 can place the postal item 40 to be delivered in the receiving and pick-up arrangement. The receiving and pick-up arrangement, as described below, can receive more than one postal items in succession during the absence of the addressee, i.e. without any input of the addressee. Furthermore, a sender, for example the owner of the receiving and pick-up arrangement, can place a postal item from an indoor area 4 into the receiving and pick-up arrangement, the postal item can be removed at a later stage by an authorized person from the outside area 3. After the postal item has been picked-up by the person authorized for pick-up, the receiving and pick-up arrangement is again ready to receipt further postal items without any input by the sender.

(12) A Cartesian coordinate system with the spatial axes X, Y and V is displayed in the figures. The two spatial axes X, Y together form a horizontal plane. The spatial axis V is vertically oriented and is perpendicular to the two spatial axes X and Y.

(13) The receiving and pick-up arrangement has a housing 5 with a top wall 6, a bottom wall 7 and two side walls 8, 9. The housing 5 is constructed to be foldable. FIGS. 1 and 2 show the casing 5 in a folded up state with the side walls 8, 9 folded between the top wall 6 and the bottom wall 7. FIGS. 4 to 6 and 8 show the housing 5 in an unfolded state in which the two side walls 8, 9 are perpendicular to the top wall 6 and the bottom wall 7 and, together with the top wall 6 and the bottom wall 7, delimit a receiving chamber 10 for the postal items 40. FIGS. 3 and 7 show the housing in an intermediate state which the housing 5 can adopt for a short time when the housing 5 is transferred from the unfolded state into the folded up state, or vice versa.

(14) In order to be able to fold up or unfold the housing 5, the two side walls 8, 9 are each connected in an articulated manner to the top wall 6 along a first hinge axis K.sub.1′, K.sub.1″ and along a second hinge axis K.sub.2′, K.sub.2″ to the bottom wall 7. The top wall 6 and the bottom wall 7 are arranged parallel to each other. The two side walls 8, 9 each have two side wall parts 11′, 11″, 12′, 12″ which are foldable connected to each other along a folding axis F.sub.1′, F.sub.1″. The first hinge axes the second hinge axes K2.sub.′, K2.sub.″ and the folding axes F.sub.1′, F.sub.1″, which are for the sake of clarity only displayed in FIG. 3, are arranged parallel to each other and each run parallel to the spatial axis X of the Cartesian coordinate system. The housing 5 can be unfolded and folded up along a vertical axis V, which here corresponds to the vertical and is aligned parallel to the spatial axis V of the Cartesian coordinate system. In the folded up state, the side wall parts 11, 12 of the respective side wall 8, 9 are folded between the top wall 6 and the bottom wall 7 and arranged one above the other.

(15) The receiving and pick-up arrangement further comprises an installation frame 17, which is inserted into the recess 1 of the stationary component 2. The installation frame 17 has a central through-opening 51 large enough to pass the postal items 40 through the through-opening 51.

(16) In the unfolded state shown in FIGS. 4 to 6 and 8, the housing 5 has a lockable first opening 13 on a first front face. The first opening 13 is aligned with the recess 1 and the through-opening 51, respectively, and is at least substantially congruent with the through-opening 51. Furthermore, the housing 5 has a second lockable recess 14 on a second front face. Through both the first opening 13 and the second opening 14, the postal item 40 can be placed into or removed from the receiving chamber 10. The first opening 13 is located at a first end 15 of the housing 5, which faces the stationary component 2 and the installation frame 17, respectively. The second opening 14 is located at a second end 16 of the housing 5, the first end 15 and the second end 16 being located opposite each other in a direction of the first hinge axes K.sub.1′, K.sub.1″. The two openings 14, 15 are arranged parallel to each other.

(17) An adjustment device 18 is provided for adjusting and guiding the housing 5 from the folded state to the unfolded state, and vice versa. The adjustment device 18 comprises two guide elements, here guide rods 19′, 19″, which are spaced from each other and arranged laterally next to the recess 1 and extend parallel to the vertical axis V. The guide rods 19′, 19″ are attached to the installation frame 17 at a lower end via a first support 20 and at an upper end via a second support 21. To adjust the housing 5 from the folded up state to the unfolded state, and vice versa, the top wall 6 is coupled laterally with one linear drive each at the first end 15 of the housing 5, wherein the linear drives, here, are spindle drives 22′, 22″.

(18) In addition, the receiving and pick-up arrangement has a holder 24 for attachment of the housing 5 to the stationary component 2 pivotable about a pivot axis S. The pivot axis S runs parallel to the spatial axis Y of the Cartesian coordinate system. The holder 24 is attached to the installation frame 17, for instance via the first support 20. The housing 5 is held axially stationary in the direction of the first hinge axes Kin by the pivotable holder 24. Due to the one-sided attachment of the housing 5 with its first end 15 to the stationary component 2, the housing 5 protrudes from the stationary component 2 with its second end 16. The pivot axis S is aligned parallel to the bottom wall 7 and can be aligned perpendicular to the vertical axis V, as shown here. FIG. 1 shows the folded up (collapsed) housing 5 in an upwardly pivoted position, which corresponds to a rest position of the receiving and pick-up arrangement. In contrast, the receiving and pick-up assembly is in an operating position when the housing 5 is unfolded and in the downwardly pivoted position, as shown in FIGS. 4 to 6 and 8.

(19) Furthermore, the receiving and pick-up arrangement has a deposit belt 25. The deposit belt 25 is arranged parallel to the bottom wall 7 and delimits the receiving chamber 10 on the bottom side. When the housing 5 is in the unfolded state, the deposit belt 25 extends between the first opening 13 and the second opening 14. As shown here, the deposit belt 25 can have a closed ring shape, i.e. it can be designed endless. Alternatively, the deposit belt 25 can have two defined ends. Furthermore, a belt drive 26 is provided to drive the deposit belt 25 and guide roller 27 are arranged at both ends 15, 16 of the housing 5 to deflect the endless deposit belt 25.

(20) Furthermore, the receiving and pick-up arrangement has a first device 28 for closing and opening the first opening 13. In detail, the first device 28 has a flap 29 hinged to the bottom of the installation frame 17, as shown in FIG. 6. The flap 29 can be operated manually, although in principle it would also be possible to drive it by an electric motor. The flap 29 closes the recess 1 and the through-opening 51, respectively, which is aligned with the first opening 13 of the housing 5 when the housing 5 is in the unfolded state. On an inner surface 30 of the flap 29 facing the receiving chamber 10 a device (not shown) such as a receptacle, a receiving tray, a basket or the like may be arranged to receive the postal item 40 with the flap 29 opened. In this way, when the flap 29 is closed, the postal item 40 placed on the inner surface 30 or said device, respectively, will automatically fall into the receiving chamber 10 and land on the deposit belt 25. This is particularly advantageous when the postal items 40 are delivered by drones. For instance, the flap 29 can therefore be driven by an electric motor.

(21) Furthermore, the receiving and pick-up arrangement has a second device 31 for closing and opening the second opening 14. The second device 31 has a roller shutter curtain 32. The roller shutter curtain 32 is rolled up at one end onto a roller shutter drum 33 and driven by an electric motor. The roller shutter drum 33 is located below the bottom wall 7 at the first end 15 of the housing 5. The roller shutter curtain 32 is guided in two parallel roller shutter rails, which are divided into multiple sections. Starting with the roller shutter drum 33, a first rail section 34′, 34″ of the roller shutter rails is attached to the housing 5 from below, as shown in FIG. 7. At the second end 16 of housing 5, a 90° bent transition section 35′, 35″ is connected, which merges into a second section of the roller shutter rails. In the second section the roller shutter rails are connected to the side walls 8, 9. In detail, a section 36′, 36″, 37′, 37″ of the respective roller shutter rail is attached to each of the side wall parts 11′, 11″, 12′, 12″, so that the roller shutter rail can be folded together with the side wall parts 11′, 11″, 12′, 12″ in the second section. When the housing 5 is in the unfolded state, the individual sections 36′, 36″, 37′, 37″ of the roller shutter rails form continuous roller shutter rails in the second section and then extend parallel to the vertical axis V. The roller shutter curtain 32 thus opens the second opening 14 from top to bottom, or closes the second opening 14 from bottom to top.

(22) The receipt of the postal item is explained in the following based on FIGS. 1 to 6 and 8. FIGS. 1 to 6 and 8 show in simplified manner the steps that follow in chronological order when the postal item 40 is received. The process for receiving the postal item is described below, starting with the rest position of the receiving and pick-up arrangement. If the receiving and pick-up arrangement is already in the operating position, the process for receiving the postal item can, in principle, begins with the step shown in FIG. 5.

(23) In order to receive the postal item 40, the deliverer first registers the postal item 40 at the receiving and pick-up arrangement. For this purpose, a control panel 38 can be installed in the outside area 3. For example, the deliverer can scan a code 39 on the postal item 40 with a scanner mounted in the outside area 3, the scanner can be integrated in the control panel 38. After successful registration, the housing 5 is first pivoted from the rest position shown in FIG. 1 by 90° about the pivot axis S into a position perpendicular to the installation frame 17 or to the stationary component 2. FIG. 2 shows the folded up housing 5 in an intermediate step, in which the housing 5 has already been pivoted down by about 80°. It can be seen that the first opening 13 is closed by means of the flap 29. The housing 5 is pivoted further into the horizontal position and then unfolded. The base wall 7 is fixed to the installation frame 17 by the pivotable holder 24. The top wall 6 is adjusted upwards along the vertical axis V away from the bottom wall 7 using the adjustment device 18. By adjusting the top wall 6, the side walls 8, 9 which are connected to the top wall 6 and to the bottom wall 7 are unfolded until they are aligned perpendicular to the top wall 6 and bottom wall 7. FIG. 3 shows the housing 5 in a further intermediate step, in which the side wall parts 11′, 11″, 12′, 12″ are not yet completely unfolded. The side walls 8, 9 are still slightly folded. Only when the side wall parts 11′, 11″, 12′, 12″ of the respective side walls 8, 9 each are in one plane the side walls 8, 9 are unfolded. FIG. 4 shows the housing 5 in the unfolded state. Then the side walls 8, 9 are arranged parallel and opposite to each other and aligned perpendicular to the top wall 6 and the bottom wall 7. In the unfolded state, the receiving chamber 10 is delimited between the side walls 8, 9, the top wall 6 and the bottom wall 7. In FIG. 5 the second opening 14 is closed by the second device 31 for closing and opening the second opening 14. It can be seen that the roller shutter curtain 32 covers the second opening 14. The receiving and pick-up arrangement is now in the operating position.

(24) The first opening 13 is then released or unlocked for the deliverer. The flap 29 can be opened manually by the deliverer or, if equipped with an electric motor, automatically. FIG. 6 shows that the deliverer can place the postal item 40 through the opened first opening 13 into the receiving chamber 10 on the deposit belt 25. Afterwards the deliverer can close the flap 29 again, although this could in principle also be done automatically. After the first opening 13 is closed again, the second device 31 for closing and opening the second opening 14 is automatically activated. The roller shutter curtain 32 opens the second opening 14, as shown in FIG. 8. The deposit belt 25 is driven by the belt drive 26 in a conveying direction towards the second opening 14.

(25) The postal item 40 placed on the deposit belt 25 is automatically transported to the second opening 14 and falls through the opened second opening 13 into the inner area 4. Afterwards, the second opening 13 is closed again by the roller shutter curtain 32. Then, the receiving and pick-up arrangement is again in the operating position shown in FIG. 5. In the operating position, the receiving and pick-up arrangement can receive further postal items. On demand, the receiving and pick-up arrangement can also be transferred back into the rest position until the next postal item is received. In principle, however, it is also possible for the receiving and pick-up arrangement to remain in the operating position until the next postal item is received.

(26) The pick-up of the postal item is explained below. The process for pick-up the postal item as described starts with the operating position of the receiving and pick-up arrangement shown in FIG. 5. If, however, the receiving and pick-up assembly is still in the rest position, as shown in FIG. 1, the pick-up process starts with transferring the receiving and pick-up assembly into the operating position by controlling said transfer process via a control panel located in the inner area 4. For instance, the receiving and pick-up arrangement can be integrated in a local network, especially via WLAN. The sender could then control the receiving and pick-up arrangement, for example, via a mobile device such as a smartphone, or via voice instructions Before pick-up of the postal item, the postal item 40 is placed through one of the two openings 13, 14, preferably through the opened second opening 14 into the receiving chamber 10 of the unfolded housing 5. After the postal item 40 is placed within the receiving chamber 10 onto the deposit belt 25, the second opening 14 can be closed automatically or after command by the sender so that the postal item 40 is ready for pick-up, now. The person authorized to pick-up can then register himself at the receiving and pick-up arrangement in the outside area 3. If the registration is successful, the first opening 13 is again unlocked, or can be opened automatically, whereby for burglary-protection, the first opening 13 is only unlocked if the second opening 14 is closed, here by the roller shutter curtain 32. Through the opened first opening 13, the person authorized to pick-up the postal item 40 can remove said postal item 40 from the receiving chamber 10 and then close the first opening 13 again, which could be done manually or automatically. This returns the receiving and pick-up arrangement to the operating position and allows said arrangement to receive further postal items. On demand, the receiving and pick-up arrangement can also be transferred back into the rest position until the next postal item is about to be received. In principle, however, it is also possible for the receiving and pick-up arrangement to remain in the operating position until the next postal item is received.

(27) FIG. 9 shows an inventive receiving and pick-up arrangement for postal items according to a second embodiment of the present invention. Components which are identical to components of the first embodiment described in FIGS. 1 to 8 are marked with the same reference signs. In contrast to the first an embodiment, the receiving and pick-up arrangement as shown in FIG. 9 has a housing that can be adjusted in size.

(28) In detail, the housing 5 comprises a base part 41 and an extension part 42, whereby the extension part 42 is arranged displaceable relative to the base part 41 and parallel to the first hinge axes K.sub.1′, K.sub.1″. The base part 41 is held axially stationary on the installation frame 17. The base part 41 comprises the top wall 6, the bottom wall 7 and the two side walls 8, 9. The extension part 42 has a further top wall 43, a further bottom wall 44 and two further side walls 45, 46.

(29) In order to be able to fold up or to unfold the housing 5, both the base part 41 and the extension part 42 are designed to be foldable. For this purpose, the two side walls 8, 9 of the base part 41 are each connected in an articulated manner along one of the first hinge axes K.sub.1′, K.sub.1″ to the top wall 6 of the base part 41 and each along one of the second hinge axes K.sub.2′, K.sub.2″ to the bottom wall 7 of the base part 41. Furthermore, the two further side walls 45, 46 of the extension part 42 are each connected in an articulated manner along a third hinge axis K.sub.3′, K.sub.3″ to the further top wall 43 of the extension part 42 and each along a fourth hinge axis K4.sub.4′, K.sub.4″ to the further bottom wall 44 of the extension part 42. The top walls 6, 43 and the bottom walls 7, 44 are arranged parallel to each other. The two side walls 8, 9 of the base part 41 each have the two side wall parts 11′, 11″, 12′, 12″, which are each foldable connected to each other along one of the folding axes F.sub.1′, F.sub.1″. The two other side walls 45, 46 of the extension part 42 each have two further side wall parts 47′, 47″, which are foldable connected to each other along a further folding axis. In FIG. 9, because of the perspective view, only the side wall parts 47′, 47″ of one of the other two side walls 45 are visible. The first hinge axes K.sub.1′, K.sub.1″, the second hinge axes K.sub.2′, K.sub.2″, the third hinge axes K.sub.3′, K.sub.3″ and the fourth hinge axes K.sub.4′, K.sub.4″ as well as the folding axes F.sub.1′, F.sub.1″ and the further folding axes F.sub.2′, F.sub.2″ are aligned parallel to each other and each run parallel to the spatial axis X of the Cartesian coordinate system. The housing 5 can be unfolded and folded up along the vertical axis V, which here corresponds to the vertical and is aligned parallel to the spatial axis V of the Cartesian coordinate system. For this purpose the adjustment device 18 interacts with the top wall 6 of the base part 41. FIG. 9 shows the housing 5 in the unfolded state.

(30) Analogous to the receiving and pick-up arrangement shown in FIGS. 1 to 8 according to a first embodiment of the present invention, the receiving and pick-up arrangement shown in FIG. 8 also has the pivotable holder 24. FIG. 9 shows the receiving and pick-up arrangement in the operating position.

(31) For axial displacement of the extension part 42 relative to the base part 41 held stationary on the installation frame 17, the receiving and pick-up arrangement has a displacement device 48. This allows the extension part 42 to be moved parallel to the first hinge axes K.sub.1′, K.sub.1″ into a first position (retracted position), in which the receiving chamber 10 has a first volume, and into at least one second position (extended position), in which the receiving chamber 10 has a second volume increased relative to the first volume. For instance, said adjustment is infinitely variable. FIG. 8 shows that the extension part 42 even in the extended state overlaps at least in a section 50 the base part 41. For example, the displacement device 48 may have a linear drive acting in the direction of the first hinge axes K.sub.1′, K.sub.1″. The linear drive can be a spindle drive with an electric motor. A spindle shaft of the spindle drive can be supported on the holder 24 and a spindle nut running on a spindle shaft can be firmly connected to the extension part 42. Likewise, the displacement device 48 could also have an actuator which could be operated hydraulically or by an electric motor. In this way, the volume of the receiving chamber 10 can be adjusted to the size of the postal item 40 before the postal item is received by axially moving the extension part 42 relative to the base part 41.

(32) The deposit belt 25 has a finite design and thus has two defined ends, each of which is rolled up on its own winding drum 49 in order to roll up the deposit belt 25 on one or the other winding drum 49, depending on the direction of conveyance. In this way the deposit belt 25, which delimits the receiving chamber 10 at the bottom, can react to the change in length of the housing 5 along the first hinge axis K.sub.1′, K.sub.1″, which results from the axial displacement of the extension part 42, and can be rolled up when the volume of the receiving chamber 10 is reduced or unrolled when the volume of the receiving chamber 10 is increased.

LIST OF REFERENCE SIGNS

(33) 1 Recess 2 stationary component 3 outside area 4 inside area 5 housing 6 top wall 7 bottom wall 8 side wall 9 side wall 10 receiving chamber 11 side wall part 12 side wall part 13 opening 14 opening 15 end 16 end 17 installation frame 18 adjustment device 19 guide rod 20 support 21 support 22 spindle drive 23 spindle drive 24 holder 25 deposit belt 26 belt drive 27 guide roll 28 device for closing and opening the first opening 29 flap 30 inner surface 31 device for closing and opening the second opening 32 roller shutter curtain 33 roller shutter drum 34 rail section 35 transition section 36 section 37 section 38 control panel 39 code 40 postal item 41 base part 42 extension part 43 top wall 44 bottom wall 45 side wall 46 side wall 47 side wall part 48 displacement device 49 winding drum 50 section 51 through-opening V vertical axis or vertical K hinge axis F folding axis S pivot axis