EP0922423A1 - Letterbox assembly - Google Patents
Letterbox assembly Download PDFInfo
- Publication number
- EP0922423A1 EP0922423A1 EP98204204A EP98204204A EP0922423A1 EP 0922423 A1 EP0922423 A1 EP 0922423A1 EP 98204204 A EP98204204 A EP 98204204A EP 98204204 A EP98204204 A EP 98204204A EP 0922423 A1 EP0922423 A1 EP 0922423A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flap
- chute
- access
- security
- assembly according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G29/00—Supports, holders, or containers for household use, not provided for in groups A47G1/00-A47G27/00 or A47G33/00
- A47G29/12—Mail or newspaper receptacles, e.g. letter-boxes; Openings in doors or the like for delivering mail or newspapers
- A47G29/122—Parts, details, or accessories, e.g. signalling devices, lamps, devices for leaving messages
- A47G29/124—Appliances to prevent unauthorised removal of contents
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G29/00—Supports, holders, or containers for household use, not provided for in groups A47G1/00-A47G27/00 or A47G33/00
- A47G29/12—Mail or newspaper receptacles, e.g. letter-boxes; Openings in doors or the like for delivering mail or newspapers
- A47G29/122—Parts, details, or accessories, e.g. signalling devices, lamps, devices for leaving messages
- A47G29/124—Appliances to prevent unauthorised removal of contents
- A47G2029/1257—Appliances to prevent unauthorised removal of contents comprising a lock on the outlet door
Definitions
- the present invention relates to a letterbox assembly according to the preamble of Claim 1.
- Such letterbox assembly is known from French Patent publication 2,478,987.
- Such letterbox assemblies with an access flap and a security flap are used where, on the one hand, it is necessary to ensure free access to the letterbox, but, on the other hand, abuse cannot be ruled out, i.e. unauthorized persons may attempt to remove post from the receptacle in order to use it for fraudulent transactions.
- bank and Giro orders are a particular target for such people, who will try to profit by fraudulent means.
- the object of the present invention is to provide an improved letterbox assembly in which there is no obstacle to the user posting items, i.e. there is no need for complicated operations using passes and the like, while, on the other hand, it is impossible for people who wish to abuse the system to gain access to the receptacle for post.
- an alarm device may be present which ensures that in such a situation, which is theoretically impossible, an alarm is emitted. This may be a direct visual or acoustic alarm or a silent alarm.
- the latter In order to assist with the movement of items of post and the like along the chute, the latter is provided with projections, so that the contact surface between the chute and such items of post is reduced. If, for example, a wet envelope is inserted, or other wet items of post, adhesion to the chute can be made even less likely by providing ventilator means with an air flow which is such that it can be used to dry items of post which are situated in the upstream part of the chute. If the air flow also moves into the space between the item of post and the base of the chute, in the case of a chute provided with projections, movement of the post can be considerably facilitated.
- the access flap can be locked electrically, forcing of this locking can be prevented by positioning it slightly deeper in the wall, i.e. downstream of a usual letterbox closure which cannot be locked in any way. In this case, of course, the distance is such that the user can immediately see that his/her post is not moving further if the access flap is closed.
- a lock of this nature may be important, for example, at the turn of the year and similar occasions.
- the downstream part of the chute may be protected.
- sensor means are present in order to check whether there are any objects situated in that area, since in practice it has been found that persons of ill intent block the chute halfway by inserting balls of paper or the like or using adhesive.
- the post will never reach the security flap and, after it has been posted by a well-intentioned user, the defrauder can then remove the post in question from the letterbox assembly simply by opening the access flap. Abuse of this nature can be prevented by employing detection means which cover the chute.
- an emergency power supply may be present in order to allow the letterbox assembly to operate securely in the event of a power cut.
- the letterbox assembly according to the invention is denoted by 1. It comprises a receptacle 2 for items of post 10. These items of post 10 can be removed via a door 3.
- the letterbox assembly is accessible via an access flap 4 which adjoins the conveying section 5.
- This conveying section 5 comprises a chute 6, at the end of which there is arranged a security flap 7. Moving the security flap 7 into the open or closed position is achieved by means of an actuating magnet 8 which is electrically connected, in a manner which is not illustrated in more detail, to control unit 15.
- a position sensor 9 is also arranged in the vicinity of the security flap 7 in order to detect its position.
- An eye 11 which interacts with a receiver 12, is arranged in the top part of the housing of the letterbox assembly.
- the signal from this eye is also fed to control unit 15.
- a radar sensor 13 which is connected to control unit 15 in a manner not illustrated in more detail is also provided.
- a locking magnet 14 for locking the closed position of access flap 4.
- An emergency power supply 16 such as a battery, is present in the bottom of the housing and, of course, is also connected to control unit 15.
- security flap 7 may be opened slightly, by using force or the like, while activity, which is detected by radar sensor 13, is taking place in the vicinity of access flap 4.
- the position sensor 9 determines whether the security flap 7 is open. If the security flap 7 is open and activity is detected by the radar sensor 13, an alarm signal will be emitted by the intervention of control unit 15.
- Fig. 3 shows a further embodiment of the letterbox assembly according to the invention.
- the various components are shown in the open position by solid lines and in the closed position by dashed lines.
- the assembly shown in Fig. 3 is denoted overall by 21.
- the receptacle for post is denoted by the reference numeral 22 and the access part is denoted by 23.
- the access flap is denoted by 24.
- this access flap is arranged somewhat further downstream, with a freely movable inlet flap 25 positioned upstream.
- This inlet flap corresponds to a standard letterbox flap and the distance between this inlet flap and the access flap is so small that the user will actually be able to see if the access flap 24 is closed. This makes it more difficult to force access flap 24.
- the security flap 27 is provided at its end with a magnet 42 which is able to interact with a (reed) contact 43.
- the chute is denoted by 26 and, in this embodiment, is provided with projections or ribs 37 along which the item of post 30 can slide.
- the base surface 38 is situated between the projections or ribs 37. Toothing 41 is arranged at the end of the chute.
- the eye described above is denoted by 31 and the receiver which interacts therewith is denoted by 32. Naturally, a number of, for example six, transmitter/receivers of this nature may be present.
- the radar sensor is denoted by 33 and both the eye or the receiver 32 and the radar sensor 33 are connected to control unit 35. Moreover, a connection is present, in a manner not illustrated in more detail, between locking magnet 34, which actuates the access flap 24 via a system of rods 36, and this control unit 35.
- a ventilator 39 is present which may optionally run continuously (may, for example, be controlled by radar sensor 33) and which is designed in such a manner that the air flow from it is moved towards the access opening and the immediately adjoining part of the chute. If appropriate, the flow may be such that some of this air moves between an item of post 30 and the space between the ribs or projections 37.
- control is such that, under "normal" circumstances, both access flap 24 and security flap 27 are opened. If the radar sensor 33 detects activity on the chute 26 for a relatively long time, such as 20 seconds, flap 27 will be closed via control unit 35 and actuating magnet 28. If desired, indicator lamps may be present which show the state of the control unit.
- the transmission/receiving unit 31, 32 is designed in such a manner that if post remains on the chute for a relatively long time, for example for longer than 10 to 15 seconds, the access flap 24 is closed.
- the security positions described above may be released either automatically, if the insecure state no longer exists, i.e. movement on the chute is no longer observed and/or the item of post has fallen down, or it may be possible that resetting by the user is required.
Landscapes
- Supports Or Holders For Household Use (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Letterbox assembly (1) with an access flap (4) and a security flap
(7). The security flap (7) provides access to a receptacle (2) for items
of post (10) and access flap (4) and security flap (7) are connected to
one another via a chute (6). The access flap (4) and security flap (7)
are lockable. Activity on the chute (6), and opening of the access flap
(4) are detected by a radar sensor (13). If activity takes place for a
certain, excessive, time, security measures are taken. These may
comprise closing the security flap (7).
Description
- The present invention relates to a letterbox assembly according to the preamble of
Claim 1. - Such a letterbox assembly is known from German Patent 722,202.
- Such letterbox assembly is known from French Patent publication 2,478,987. Such letterbox assemblies with an access flap and a security flap are used where, on the one hand, it is necessary to ensure free access to the letterbox, but, on the other hand, abuse cannot be ruled out, i.e. unauthorized persons may attempt to remove post from the receptacle in order to use it for fraudulent transactions. For example, it is known that bank and Giro orders are a particular target for such people, who will try to profit by fraudulent means.
- Structures have been proposed in the prior art in which only either the security flap or the access flap is completely opened. This may be associated with a delay. This is intended to prevent unauthorized access to the post receptacle. However, this measure means that if the access flap is partly opened, the security flap will also be partly opened. As a result, it is possible for undesirables to use wires and the like to fish post out of the receptacle lying beneath the flaps. It is also possible for bars, pipes or the like to be introduced past the security flap in this partially open position, so that when the access flap moves further upwards the security flap is unable to complete its closing movement. Moreover, it is possible for objects or the like to be arranged on the chute in such a manner that post introduced subsequently cannot move further.
- Since banks and similar establishments do not want to be held liable for considerable claims and wish to provide the impression, as far as possible, that they safeguard their customer's details, but, on the other hand, wish to encourage customers to drop off transfer orders directly into letterboxes, the object of the present invention is to provide an improved letterbox assembly in which there is no obstacle to the user posting items, i.e. there is no need for complicated operations using passes and the like, while, on the other hand, it is impossible for people who wish to abuse the system to gain access to the receptacle for post.
- This object is achieved in a letterbox assembly as described above by means of the characterizing features of
Claim 1. Abuse can be noted by detecting movement for longer than the normal time. Appropriate measures can be taken, depending on the design. For example, it is possible to close the security flap electrically after a period of, for example, 10-40 seconds, and more particularly 20 seconds, has been exceeded. It is also possible to close the access flap. It is also possible in this way to detect complete closure of the access flap, since if the access flap is almost completely closed, abuse will be possible by introducing a thin foil-like web of material. In order to prevent this type of fraud, it is proposed to monitor whether the access flap is open with the aid of radar means arranged at a distance therefrom. This also allows movement of very thin objects to be detected. - If, in the event of abuse, it should nevertheless prove possible to hold the security flap open when the access flap is opened, an alarm device may be present which ensures that in such a situation, which is theoretically impossible, an alarm is emitted. This may be a direct visual or acoustic alarm or a silent alarm.
- In order to assist with the movement of items of post and the like along the chute, the latter is provided with projections, so that the contact surface between the chute and such items of post is reduced. If, for example, a wet envelope is inserted, or other wet items of post, adhesion to the chute can be made even less likely by providing ventilator means with an air flow which is such that it can be used to dry items of post which are situated in the upstream part of the chute. If the air flow also moves into the space between the item of post and the base of the chute, in the case of a chute provided with projections, movement of the post can be considerably facilitated.
- If the access flap can be locked electrically, forcing of this locking can be prevented by positioning it slightly deeper in the wall, i.e. downstream of a usual letterbox closure which cannot be locked in any way. In this case, of course, the distance is such that the user can immediately see that his/her post is not moving further if the access flap is closed. A lock of this nature may be important, for example, at the turn of the year and similar occasions.
- According to a further advantageous embodiment, the downstream part of the chute may be protected. This means that sensor means are present in order to check whether there are any objects situated in that area, since in practice it has been found that persons of ill intent block the chute halfway by inserting balls of paper or the like or using adhesive. In such a case, the post will never reach the security flap and, after it has been posted by a well-intentioned user, the defrauder can then remove the post in question from the letterbox assembly simply by opening the access flap. Abuse of this nature can be prevented by employing detection means which cover the chute.
- It is possible that an emergency power supply may be present in order to allow the letterbox assembly to operate securely in the event of a power cut.
- Exemplary embodiments of the invention will be explained in more detail below with reference to exemplary embodiments which are illustrated in the drawing, in which:
- Fig. 1 shows a perspective side view, partially in section, of the letterbox assembly according to the present invention, with the access flap closed;
- Fig. 2 shows the letterbox assembly in accordance with Fig. 1 with the access flap open; and
- Fig. 3 shows a further embodiment of the letterbox assembly according to the invention.
-
- In Fig. 1, the letterbox assembly according to the invention is denoted by 1. It comprises a
receptacle 2 for items ofpost 10. These items ofpost 10 can be removed via adoor 3. The letterbox assembly is accessible via anaccess flap 4 which adjoins theconveying section 5. This conveyingsection 5 comprises achute 6, at the end of which there is arranged asecurity flap 7. Moving thesecurity flap 7 into the open or closed position is achieved by means of an actuatingmagnet 8 which is electrically connected, in a manner which is not illustrated in more detail, to controlunit 15. - A
position sensor 9 is also arranged in the vicinity of thesecurity flap 7 in order to detect its position. - An
eye 11, which interacts with areceiver 12, is arranged in the top part of the housing of the letterbox assembly. The signal from this eye is also fed to controlunit 15. Aradar sensor 13 which is connected tocontrol unit 15 in a manner not illustrated in more detail is also provided. Finally, there is alocking magnet 14 for locking the closed position ofaccess flap 4. - An
emergency power supply 16, such as a battery, is present in the bottom of the housing and, of course, is also connected tocontrol unit 15. - In the position shown in Fig. 1, the
access flap 4 is closed. This is perceived byradar sensor 13 and, starting from the opening movement to the closure movement, security flap A is opened, as shown in Fig. 1, by actuatingmagnet 8, with a delay of approximately 25 seconds imposed bycontrol unit 15. - If
flap 4 is then opened for the purpose of inserting an item of post (Fig. 2), any movement in the vicinity of the opening of theaccess flap 4 will in fact be detected by theradar sensor 13. This will immediately activate actuatingmagnet 8 viacontrol unit 15, thus closingsecurity flap 7. The latter remains closed while theaccess flap 4 is open, and after theaccess flap 4 itself has closed, the security flap remains closed for the abovementioned 25 seconds. Then, thesecurity flap 7 is opened and item ofpost 10 falls intoreceptacle 2. - If material, such as balls of paper and the like, accumulates on the chute, this will be detected by the combination of
transmission eye 11 andreceiver 12. In such a case, an alarm signal is emitted which may be either silent or acoustic and/or visual. In any case,security flap 7 is held in the closed position while this state is present. - It is also possible that
security flap 7 may be opened slightly, by using force or the like, while activity, which is detected byradar sensor 13, is taking place in the vicinity ofaccess flap 4. Theposition sensor 9 determines whether thesecurity flap 7 is open. If thesecurity flap 7 is open and activity is detected by theradar sensor 13, an alarm signal will be emitted by the intervention ofcontrol unit 15. - During such conditions, and in the absence of the current, it is possible to close the
access flap 4 with the aid oflocking magnet 14. However, the presence of an emergencypower supply feature 16 means that such a state should not occur often. - Fig. 3 shows a further embodiment of the letterbox assembly according to the invention. The various components are shown in the open position by solid lines and in the closed position by dashed lines.
- The assembly shown in Fig. 3 is denoted overall by 21. The receptacle for post is denoted by the
reference numeral 22 and the access part is denoted by 23. The access flap is denoted by 24. Compared to the embodiment shown in Figs. 1 and 2, this access flap is arranged somewhat further downstream, with a freelymovable inlet flap 25 positioned upstream. This inlet flap corresponds to a standard letterbox flap and the distance between this inlet flap and the access flap is so small that the user will actually be able to see if theaccess flap 24 is closed. This makes it more difficult to forceaccess flap 24. Thesecurity flap 27 is provided at its end with amagnet 42 which is able to interact with a (reed)contact 43. - The chute is denoted by 26 and, in this embodiment, is provided with projections or
ribs 37 along which the item ofpost 30 can slide. Thebase surface 38 is situated between the projections orribs 37.Toothing 41 is arranged at the end of the chute. The eye described above is denoted by 31 and the receiver which interacts therewith is denoted by 32. Naturally, a number of, for example six, transmitter/receivers of this nature may be present. The radar sensor is denoted by 33 and both the eye or thereceiver 32 and theradar sensor 33 are connected to controlunit 35. Moreover, a connection is present, in a manner not illustrated in more detail, between lockingmagnet 34, which actuates theaccess flap 24 via a system ofrods 36, and thiscontrol unit 35. Aventilator 39 is present which may optionally run continuously (may, for example, be controlled by radar sensor 33) and which is designed in such a manner that the air flow from it is moved towards the access opening and the immediately adjoining part of the chute. If appropriate, the flow may be such that some of this air moves between an item ofpost 30 and the space between the ribs orprojections 37. - In the embodiment described here, the control is such that, under "normal" circumstances, both
access flap 24 andsecurity flap 27 are opened. If theradar sensor 33 detects activity on thechute 26 for a relatively long time, such as 20 seconds,flap 27 will be closed viacontrol unit 35 andactuating magnet 28. If desired, indicator lamps may be present which show the state of the control unit. - As can be seen from a comparison of the positions of the rod system 36 (which actuates the access flap 20) which are shown by solid and dashed lines, in the closed position of
flap 24 the rod system reaches an "over-centre" position, with the result that exerting a force in the direction of opening theaccess flap 24 does not lead to a compressive movement on lockingmagnet 34. - The transmission/receiving
unit 31, 32 is designed in such a manner that if post remains on the chute for a relatively long time, for example for longer than 10 to 15 seconds, theaccess flap 24 is closed. The security positions described above may be released either automatically, if the insecure state no longer exists, i.e. movement on the chute is no longer observed and/or the item of post has fallen down, or it may be possible that resetting by the user is required. - It will be clear from the above that numerous variants of the inventive idea are possible. Such amendments and adaptations may be carried out without departing from the scope of the present invention. Such amendments will be immediately obvious to the person skilled in the art on reading the above description and lie within the scope of the appended claims.
Claims (8)
- Letterbox assembly (1, 21) comprising a lockable access flap (3, 23) connected to a chute (6, 26), which chute ends, at the other side, at a lockable security flap (7, 27) which provides access to a receptacle (2, 22) for post (10, 30), characterized in that a radar sensor (13, 33) is arranged in such a manner that movements on the chute are detected in the vicinity of the access flap (3, 23).
- Letterbox assembly according to Claim 1, in which said lockable security flap can be closed electrically by means of actuating means (14, 34) which are connected to said radar sensor.
- Letterbox assembly according to Claim 2, in which the actuating means comprise a delay circuit (15, 35), said security flap being closed a certain time after movement is detected by said radar sensor.
- Letterbox assembly according to Claim 3, in which said certain time lies between 10 and 40 seconds.
- Letterbox assembly according to one of the preceding claims, in which the supporting surface of the chute comprises projections (37).
- Letterbox assembly according to one of the preceding claims, in which ventilator means (39) are present, arranged in such a manner that the air flow from them is directed towards the supporting surface of the chute.
- Letterbox assembly according to Claims 5 and 6, in which the air flow is directed in such a manner that it can move between an object (30) on the chute and the base (38) of the chute.
- Letterbox assembly according to one of the preceding claims, in which an inlet flap (25) is arranged upstream of the access flap (24).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1007771 | 1997-12-11 | ||
NL1007771A NL1007771C2 (en) | 1997-12-11 | 1997-12-11 | Mailbox assembly. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0922423A1 true EP0922423A1 (en) | 1999-06-16 |
Family
ID=19766171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98204204A Withdrawn EP0922423A1 (en) | 1997-12-11 | 1998-12-11 | Letterbox assembly |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0922423A1 (en) |
NL (1) | NL1007771C2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19950801A1 (en) * | 1999-10-21 | 2001-04-26 | S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co | Arrangement for accepting postal items has postal item chamber, insertion opening, monitoring device for monitoring chamber and output device for outputting monitoring results |
GB2389145A (en) * | 2002-05-31 | 2003-12-03 | James Clark | Letter box with automatically lockable external flap |
DE19950800B4 (en) * | 1999-10-21 | 2005-11-10 | S. Siedle & Söhne Telefon- und Telegrafenwerke OHG | Device for recording a program |
WO2012044184A1 (en) * | 2010-09-30 | 2012-04-05 | Thomas Falkland Gardiner | Apparatus and method for the secure receipt of articles |
US10711516B2 (en) | 2018-04-12 | 2020-07-14 | Nicholas Alexander Vanek | Door and package receiving assembly combination |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE722202C (en) | 1936-04-25 | 1942-07-04 | Zwietusch E & Co Gmbh | Device at drop-in points to limit the size of mail items |
FR2478987A1 (en) | 1980-03-25 | 1981-10-02 | Coudyser Se Ge Co Serrurerie G | Anti theft letter box - incorporates intermediate slanting chute with entry and exit flaps connected mechanically to function simultaneously |
GB2207461A (en) * | 1986-10-17 | 1989-02-01 | Banking Automation Ltd | Autometic deposit equipment |
DE4141048A1 (en) * | 1991-08-19 | 1993-02-25 | Control Sicherheitsdienst | Wall-mounted temporary safe deposit with electrical locking - has interior opto-electronic arrangement for detecting presence of valuables and signalling to door-opening authorisation logic |
-
1997
- 1997-12-11 NL NL1007771A patent/NL1007771C2/en not_active IP Right Cessation
-
1998
- 1998-12-11 EP EP98204204A patent/EP0922423A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE722202C (en) | 1936-04-25 | 1942-07-04 | Zwietusch E & Co Gmbh | Device at drop-in points to limit the size of mail items |
FR2478987A1 (en) | 1980-03-25 | 1981-10-02 | Coudyser Se Ge Co Serrurerie G | Anti theft letter box - incorporates intermediate slanting chute with entry and exit flaps connected mechanically to function simultaneously |
GB2207461A (en) * | 1986-10-17 | 1989-02-01 | Banking Automation Ltd | Autometic deposit equipment |
DE4141048A1 (en) * | 1991-08-19 | 1993-02-25 | Control Sicherheitsdienst | Wall-mounted temporary safe deposit with electrical locking - has interior opto-electronic arrangement for detecting presence of valuables and signalling to door-opening authorisation logic |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19950801A1 (en) * | 1999-10-21 | 2001-04-26 | S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co | Arrangement for accepting postal items has postal item chamber, insertion opening, monitoring device for monitoring chamber and output device for outputting monitoring results |
DE19950800B4 (en) * | 1999-10-21 | 2005-11-10 | S. Siedle & Söhne Telefon- und Telegrafenwerke OHG | Device for recording a program |
GB2389145A (en) * | 2002-05-31 | 2003-12-03 | James Clark | Letter box with automatically lockable external flap |
GB2389145B (en) * | 2002-05-31 | 2007-03-21 | James Clark | Letter box lock |
WO2012044184A1 (en) * | 2010-09-30 | 2012-04-05 | Thomas Falkland Gardiner | Apparatus and method for the secure receipt of articles |
US10711516B2 (en) | 2018-04-12 | 2020-07-14 | Nicholas Alexander Vanek | Door and package receiving assembly combination |
Also Published As
Publication number | Publication date |
---|---|
NL1007771C2 (en) | 1999-06-23 |
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