EP1736080B1 - Slot-type letterbox - Google Patents
Slot-type letterbox Download PDFInfo
- Publication number
- EP1736080B1 EP1736080B1 EP06115341A EP06115341A EP1736080B1 EP 1736080 B1 EP1736080 B1 EP 1736080B1 EP 06115341 A EP06115341 A EP 06115341A EP 06115341 A EP06115341 A EP 06115341A EP 1736080 B1 EP1736080 B1 EP 1736080B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- letterbox
- section
- flap
- opening
- fitted
- 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.)
- Active
Links
Images
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
-
- 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
- A47G29/126—Lids for access slits
Definitions
- the present invention relates to a slot-type letterbox.
- the invention relates to a slot-type letterbox for mounting on doors as for example disclosed in GB 2 291 680 A .
- the mounting base can also be a wall structure.
- the objective of the invention is to create a letterbox through which a thin leaflet can be pushed with ease. Furthermore, the letterbox must fulfil the regulatory criteria for fire protection.
- the objectives will be achieved as described in the independent claim.
- the dependent claims describe various embodiments of the invention.
- a small gap remains between the inner surface of the inner flap 5 and the other structures of the inner section 3, allowing a thin leaflet to be pushed inside the door with ease.
- the inner section 3 comprises projections 6 that hold the inner flap 5 slightly open when it is in the closed position.
- the inner section 3 comprises a bezel surface 7 surrounding the letterbox opening. The bezel surface is parallel to the inner surface of the flap 5 in the inner section 3.
- the outer section 2 also comprises a corresponding bezel surface 7 surrounding the letterbox opening.
- the outer section 2 also comprises a sealing strip or strips 8 that are fitted or can be fitted on the surfaces of the outer section facing the mounting base upon installation and that form a closed loop.
- the inner surface of the outer flap 21 in the outer section 2 comprises an insulation layer 22 that covers the opening surrounded by the bezel surface 7 when the outer flap is closed.
- Figure 1 illustrates an example of a letterbox 1 according to the invention.
- the letterbox comprises an outer section 2 and an inner section 3. Both sections contain flaps.
- the example in Figure 1 comprises a telescopic shaft 4 connecting the outer and inner sections.
- the invention is also applicable to letterboxes that have no telescopic shaft but comprise separate outer 2 and inner 3 sections.
- the inner flap 5 in the inner section 3 is open, showing the bezel surface 7 surrounding the letterbox opening and the projections 6.
- the letterbox opening refers to the opening through which mail can be pushed in.
- the projections 6 hold the inner flap slightly open when it is in the closed position.
- the projections are fitted or can be fitted on the bezel surface 7 of the inner section.
- a good position for the projections is on the bezel surface 7 of the inner section 3 on the side of the opening edge 9 of the inner flap 5.
- the projections can also be fitted on the inner surface of the inner flap 5.
- the side of the opening edge 9 of the inner flap 5 is a good position.
- a good size of gap is one that allows a single A4 sheet or a sheaf of sheets to be pushed in with ease.
- the inner section 3 and its bezel surface 7 provide better control of tightness compared to direct mounting of the inner flap on the inside of the door as known from prior art.
- the main air flows go through the letterbox opening, the size of which can be influenced by the shape and interoperation of the inner section 3 and the flap 5 fitted to it.
- the gap formed using the projections 6 is created in a controlled manner and only allows a certain permissible air flow.
- the gap reduces tightness, but good control of tightness and the structures of the front section 2 still make it possible to achieve the required level of tightness. Minor leakage air flow can occur through the gap between the inner section 3 and the mounting base but this is not as significant as the flow through the gap created by the projections.
- Both the front section 2 and the back section 3 have a bezel surface 7 surrounding the letterbox opening.
- the bezel surface is also parallel to the inner surface of the flap 5, 21, making the flap settle against the bezel surface as evenly as possible. It is also preferable that the bezel surface is at least essentially parallel to the mounting base. This makes the structure of the sections flat, and they will not protrude from the surface of the mounting base by any great amount.
- Sealing strip or strips 8 are fitted or can be fitted on the back surface of the outer section 2 ⁇ that is, the surface that faces the mounting base upon installation ⁇ so that they form a closed loop.
- the loop of sealing strips prevents leak air flow through the gap between the outer section and the mounting base.
- the outer section 2 comprises an insulation layer 22 on the inner surface of the outer flap 21 that covers the opening surrounded by the outer section's bezel surface 7 when the outer flap is closed.
- Figure 2 illustrates the insulation layer 22. The purpose of this is to prevent air flow through the letterbox.
- the example in Figure 2 also illustrates a telescopic shaft section 4A included in the outer section 2.
- An expanding fire insulation strip 23 can be fitted parallel to the long edge of the telescopic shaft.
- Figure 3 illustrates an example of a letterbox according to the invention in which the bezel surface 7 of the outer section 2 comprises a ridge 31 surrounding the letterbox opening.
- the ridge improves the tightness properties of the front section as the insulation layer 22 of the front flap 21 settles very tightly against the ridge 31 when closed.
- Figure 4 shows an enlargement of Figure 3 .
- the opening sector of the outer flap 21 in the outer section 2 is upwards and, correspondingly, the opening sector of the inner flap 5 in the inner section 3 is downwards.
- the opening edges 9 of both the outer and inner flaps are bent to facilitate opening.
- the outer and inner flaps are held in the closed position by flap-specific springs (not shown in the figures). The springs will also return the flaps to the closed position after being opened.
- the inner section 3 may comprise sealing strips 8 that are fitted or can be fitted on the surfaces of the inner section facing the mounting base upon installation of the inner section 3 and that form a closed loop. Springs or other means are used for the purpose of holding the flaps in the closed position and returning them to that position.
- the invention is applicable for use on mounting bases with a straight or inclined machined opening. Even though the concept of tightness has been used in the above mostly to refer to tightness against air flows, tightness also has other effects.
- the structures and the materials used in them also block the conveyance of fire, heat, sounds and smells. Sealants are significant for blocking such conveyance. All materials are suitable for the purpose.
- the structures of the inner and outer sections are manufactured of a suitable plastic and/or metal, such as aluminium. If and when the projections 6 are made of an elastic material, they are more efficient in reducing the noise arising from the closure of the inner flap.
- the projections can also be machined directly on the base (the bezel surface or the flap); thus, they are of the same material as the base.
Landscapes
- Supports Or Holders For Household Use (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Fluid-Damping Devices (AREA)
- Air Bags (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20055341A FI121327B (fi) | 2005-06-23 | 2005-06-23 | Postiluukku |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1736080A1 EP1736080A1 (en) | 2006-12-27 |
| EP1736080B1 true EP1736080B1 (en) | 2011-06-29 |
Family
ID=34778477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06115341A Active EP1736080B1 (en) | 2005-06-23 | 2006-06-13 | Slot-type letterbox |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1736080B1 (fi) |
| AT (1) | ATE514361T1 (fi) |
| FI (1) | FI121327B (fi) |
| RU (1) | RU2391035C2 (fi) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521449B (en) * | 2013-12-20 | 2017-05-03 | Trojan Hardware & Design Ltd | Improvements in or relating to letter plate arrangements |
| GB2565275B (en) * | 2017-07-26 | 2020-08-19 | Uap Ltd | Improvements to letter-plates |
| GB2637758A (en) * | 2024-02-02 | 2025-08-06 | Rutland Trading Co Ltd | A letterplate assembly |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB929250A (en) * | 1960-04-22 | 1963-06-19 | Hyresgaesternas Sparkasse Och | Improvements in or relating to letter boxes |
| SE345195B (fi) * | 1968-04-10 | 1972-05-23 | Hasselberg S | |
| SU1230928A1 (ru) * | 1984-04-26 | 1986-05-15 | Каунасский Филиал Специального Проектно-Конструкторского Бюро Министерства Связи Ссср | Почтовый щик |
| CA1241624A (en) * | 1984-07-19 | 1988-09-06 | Leo A. Saint Pierre | Insulated letter drop plate |
| GB2291680B (en) * | 1994-07-22 | 1997-10-22 | Paddock Fabr Ltd | Letter plate assembly |
| DE29701740U1 (de) * | 1997-02-01 | 1997-05-15 | Müller, Horst, 32361 Preußisch Oldendorf | Briefeinwurf mit Klappe |
| NL1007771C2 (nl) * | 1997-12-11 | 1999-06-23 | Jansen Spec Prod Bv | Brievenbussamenstel. |
| RU2233606C1 (ru) * | 2003-09-25 | 2004-08-10 | Гой Владимир Леонтьевич | Почтовый ящик |
-
2005
- 2005-06-23 FI FI20055341A patent/FI121327B/fi active IP Right Grant
-
2006
- 2006-06-13 AT AT06115341T patent/ATE514361T1/de not_active IP Right Cessation
- 2006-06-13 EP EP06115341A patent/EP1736080B1/en active Active
- 2006-06-22 RU RU2006122354/12A patent/RU2391035C2/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| FI20055341L (fi) | 2006-12-24 |
| RU2391035C2 (ru) | 2010-06-10 |
| EP1736080A1 (en) | 2006-12-27 |
| ATE514361T1 (de) | 2011-07-15 |
| FI121327B (fi) | 2010-10-15 |
| RU2006122354A (ru) | 2008-01-10 |
| FI20055341A0 (fi) | 2005-06-23 |
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