Door sealing system

Abstract

A door sealing system includes a door seal for sealing either an upper or a lower side of a building door wing, and an air channel which enables, when the door seal is in the sealing position, air to circulate from a longitudinal side of the door seal to an opposite longitudinal side of the door seal. The door sealing system also includes at least one ventilator that guides air through the air channel. The door sealing system enables sufficient air to be exchanged even when the door wing is closed.

Claims

1. A door sealing system comprising: an outer housing, a door seal partially disposed within the outer housing, the door seal comprising a sealing element, the sealing element having a sealing position for sealing between one of a lower side and an upper side of a building door wing and a respective one of a floor and a ceiling, and an air duct which, when the sealing element is in the sealing position, permits air to circulate from a first longitudinal side of the door seal to a second longitudinal side of the door seal, the second longitudinal side being opposite to the first longitudinal side, wherein the air duct runs along at least a part of the first longitudinal side and at least a part of the second longitudinal side, and wherein at least one fan is disposed in the air duct to move air through the air duct from the first longitudinal side to the second longitudinal side when the sealing element is in the sealing position, wherein the at least one fan is disposed in the outer housing between a top wall of the door seal and a top wall of the outer housing and between side walls of the outer housing, and wherein the at least one fan includes an arcuate flow duct with an inlet on the first longitudinal side of the door seal and an outlet on the second longitudinal side of the door seal.

2. The door sealing system as claimed in claim 1, wherein the door sealing system comprises a motor and wherein the at least one fan is operated by the motor.

3. The door sealing system as claimed in claim 1, wherein the at least one fan is fastened to one of the door seal and the outer housing.

4. The door sealing system as claimed in claim 1, wherein the fan and the door seal are connected to each other.

5. The door sealing system as claimed in claim 4, wherein said connection is airtight.

6. The door sealing system as claimed in claim 1, wherein the air duct is formed between the top wall of the door seal and the side walls of the outer housing.

7. The door sealing system as claimed in claim 1, the sealing element which is automatically lowered when the door wing is moved from an open position to a closed position and is automatically raised when the door wing is moved from the closed position to the open position.

8. The door sealing system as claimed in claim 1, wherein said door sealing system is designed for arrangement in a groove of the door wing and for fastening to said door wing.

9. The door sealing system as claimed in claim 1, wherein the at least one fan is operated by an electric motor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Preferred embodiments of the invention are described below with reference to the drawings which serve merely for explanation and should not be interpreted as being limiting. In the drawings:

(2) FIG. 1 shows a side view of a door sealing system according to the invention in a first embodiment, fastened in a groove of a door wing;

(3) FIG. 2a shows a first perspective illustration of the door wing with groove and door sealing system according to FIG. 1;

(4) FIG. 2b shows a second perspective illustration of the door wing with groove and door sealing system according to FIG. 1;

(5) FIG. 3 shows a side view of the door sealing system according to FIG. 1;

(6) FIG. 4 shows a cross section through the door sealing system according to FIG. 3 along the line Iv-Iv, with a crossflow fan arranged in a centered manner;

(7) FIG. 5 shows a perspective illustration of the door sealing system according to FIG. 3;

(8) FIG. 6 shows a perspective illustration of the door sealing system according to FIG. 3 without an outer housing;

(9) FIG. 7 shows a perspective illustration of a door sealing system according to the invention without an outer housing in a second embodiment;

(10) FIG. 8 shows a view of a door sealing system according to the invention according to a third embodiment, with a crossflow fan arranged non-centrally;

(11) FIG. 9 shows a cross section through the door sealing system according to FIG. 8;

(12) FIG. 10 shows a perspective illustration of the door sealing system according to FIG. 8 without an outer housing;

(13) FIG. 11 shows a view of a door sealing system according to the invention according to a fourth embodiment from the front;

(14) FIG. 12 shows a side view of the door sealing system according to FIG. 11;

(15) FIG. 13 shows a front view of the door sealing system according to FIG. 11;

(16) FIG. 14 shows a perspective illustration of the door sealing system according to FIG. 11 with axial fans and without an outer housing, and

(17) FIG. 15 shows a further cross section through the door sealing system according to FIG. 11.

DESCRIPTION OF PREFERRED EMBODIMENTS

(18) FIGS. 1 to 6 illustrate a first exemplary embodiment of the door sealing system according to the invention.

(19) According to FIG. 1, said door sealing system is fastened in a groove N which is present in a lower edge of a door wing T. The door sealing system can alternatively also be arranged on an upper end edge, on a lateral surface of the door wing T or on a lower or upper end surface of the door wing T.

(20) As can be seen in FIGS. 2a and 2b, the U-shaped groove N is of stepped or offset design. At at least one, preferably at both lateral ends of the groove N, the latter is designed to be narrower and less deep than in the central region. However, the groove N can also have a width and depth which are constant over its entire length.

(21) The door sealing system is fastened to or in the door wing T by known means. In particular, there can be an outer housing 1 which receives all of the parts of the door sealing system and is of cap-shaped design with limbs parallel to the end surface of the door wing T. Said limbs are preferably screwed onto the end surface of the door wing T. This type of fastening is suitable for grooves formed in a constant manner and also for stepped grooves.

(22) In the embodiment illustrated here, the outer housing 1 has a U-shaped cross section as can readily be seen in FIG. 4. The outer housing can be embedded in a recessed manner in the groove N or, as illustrated in FIGS. 1 and 2, can end flush with the lower edge of the door wing T. Although protruding outer housings 1 are likewise possible, they are, however, less desirable in practice.

(23) The outer housing 1 encloses a seal housing 2 of a door seal. Outer housing 1 and seal housing 2 are preferably profiled rails made from aluminum or plastic. The seal housing 2 preferably likewise has a substantially U-shaped cross section and has a web and also two limbs which are connected to each other by said web and run parallel to each other.

(24) The door seal is preferably designed as a lowerable seal as is known from the prior art. In this example, the seal housing 2 contains a support profiled rail 3, a sealing element 4 fastened to the support profiled rail 3 and a lowering mechanism (not illustrated), wherein the support profiled rail 3 and the sealing element 4 are jointly raisable and lowerable relative to the seal housing 2 via said lowering mechanism. The sealing element 4 is formed here as a single piece and, in this example, has lateral limbs 40 bearing against the seal housing 2 and a sealing lip 41 which protrudes in a manner protruding obliquely downward and extends over the entire length of the seal. However, the sealing element 4 can also be of multi-piece design and/or can have a different shape and different fastening points to the support profiled rail 3, to the seal housing 2 or to other points of the seal. The lowering mechanism preferably has leaf springs which are actuable via an actuating rod running parallel to the longitudinal direction of the seal. The actuating rod ends in an actuating knob 5 which protrudes on one side of the door seal, as can be seen in FIG. 3. When the door wing T is closed, the actuating knob is therefore pushed in and the force is transmitted to the leaf springs.

(25) Other types of lowering mechanisms and other types of door seals, in particular friction seals and brushes, can likewise be realized with the concept according to the invention.

(26) In this example, the seal housing 2 protrudes on both sides with respect to the outer housing 1, as can be seen in FIG. 3. The sealing system according to the invention can thereby be mounted in an offset groove N of the door wing T. For this purpose, there is an angle bracket 6 which engages by one limb under the web of the seal housing 2 and by a second limb, which is approximately perpendicular to the first limb, is screwed onto the end surface of the door wing T. This can readily be seen in FIG. 1. The sealing system mounted in this manner is scarcely visible from the outside, and only the end sides can be seen.

(27) The seal housing 2 is arranged spaced apart in the outer housing 1 such that an intermediate space 8, 8 is produced on both of its longitudinal sides. Said intermediate spaces 8, 8 form part of an air duct.

(28) The door sealing system according to the invention furthermore has at least one ventilator or fan 7. The fan 7 is arranged above the web of the seal housing 2, as can be seen in FIGS. 4 and 6. The fan 7 is preferably fastened on the web of the seal housing 2, for example is screwed, clamped or adhesively bonded or sealed in some other way thereon.

(29) The fan 7 is surrounded by the outer housing 1, as can be seen in FIG. 5. The fan 7 can additionally or alternatively also be fastened on or in the outer housing 1.

(30) This fan 7 is preferably designed as a miniature fan, and therefore it is designed in as space-saving a manner as possible and is actuable with little energy consumption. It can be battery-operated or is connected or connectable to the mains. A connection to the mains can take place via a contact, for example in the door frame, for example when the door is closed. There can also be cable junctions, for example, with respect to the door lock.

(31) The fan 7 is arranged in the region of one end of the seal. However, said fan is preferably located at a distance from the end of the seal housing 2. This permits the arrangement in an offset groove N of the door wing T. A plurality of transverse fans of this type can also be used. In particular, a transverse fan can likewise be arranged in the region of the other end of the seal housing 2. However, at least one fan 7 is preferably arranged in the region of that end to which the door wing T is fastened pivotably in the door frame; i.e. on the hinge side.

(32) In this embodiment, the fan 7 is a crossflow fan. It blows air along the longitudinal direction of the seal housing 2. However, the fan 7 has a flow duct 70 with an inlet 71 on one longitudinal side of the seal housing 2 and an outlet 72 on the opposite longitudinal side of the seal housing 2. This can be achieved, for example, as illustrated here by suitable design of the fan housing. The inlet 71 leads into the first intermediate space 8 on a first longitudinal side of the seal housing 2. The outlet 72 leads into the second intermediate space 8 on the second, opposite longitudinal side of the seal housing 2. This can readily be seen in FIG. 4. This fan 7 thereby conducts air from one side of the door wing to the other side and therefore from one room of the building into another. The intermediate spaces 8, 8 and the flow duct 70 therefore form the air duct. It is ensured by means of this arrangement, that, even when the door is closed and when the door seal is lowered, a sufficient exchange of air can take place between the rooms. This is even possible for a particular central ventilation system.

(33) FIG. 7 illustrates a first variant of the door sealing system according to the invention according to FIGS. 1 to 6. The seal housing 2 is provided here with holes 20 in order to act as a sound-absorbing resonator. Other types of resonators, in particular those disclosed in WO 2010/142053, can likewise be used in the door sealing system according to the invention.

(34) FIGS. 8 to 10 illustrate a further exemplary embodiment of the door sealing system according to the invention. A transverse fan 7 is also present here. Said transverse fan is, however, arranged non-centrally in the outer housing 1, and therefore the inlet 71 of said transverse fan is not directed downward, as in the embodiments according to FIGS. 1 to 6, but rather is directed laterally toward the side wall of the outer housing 1. The outlet 72 of said transverse fan is directed downward in this example. Alternatively, however, the inlet 71 can be oriented downward and the outlet 72 can be oriented laterally.

(35) In a further embodiment (not illustrated here), inlet and outlet 71, 72 can end laterally. For this purpose, the outer housing 1 merely has to be designed to be wider than the fan 7. The fan 7 here can be arranged non-centrally or centrally in the outer housing 1 as long as an air duct is formed from one side to the other side of the seal.

(36) In all of these embodiments, the seal housing 2 is preferably arranged centrally, i.e. in the outer housing 2 along the longitudinal center axis thereof. However, said seal housing can also be arranged non-centrally.

(37) Furthermore, the variations mentioned in the first exemplary embodiment, including the use of resonators, are also possible in this embodiment.

(38) In the embodiment according to FIGS. 11 to 13, a plurality of radial fans 7 are arranged over at least part of the length of the seal housing 2. Said radial fans 7 are also, in turn, preferably fastened on the seal housing 2. The variations according to the previous exemplary embodiments are also possible here.

(39) The radial fans 7 can be arranged distributed, preferably uniformly distributed, over the entire length of the seal housing 2. However, they could also be located in the region of one end. Preferably in the region at which the door is held pivotably in the door frame.

(40) The radial fans 7 direct the air from one side of the door wing T to the other side. In this example, a special design of a flow duct is therefore not necessary. This has the advantage that the sealing system can be of overall narrower design.

(41) FIG. 15 illustrates a damping element 9 which is fastened onto the inner sides of the two parallel limbs of the outer housing 1. Said damping element is preferably adhesively bonded thereto. The damping element 9 serves for sound damping. It is therefore a sound absorber. It can be designed as a simple, sound-absorbing mat, for example made from felt, or as Helmholtz resonator. It preferably extends approximately over the entire length of the sealing system.

(42) The door sealing system according to the invention permits a sufficient exchange of air even when the door is closed.

LIST OF DESIGNATIONS

(43) T Door wing N Groove 1 Outer housing 2 Sealing housing 20 Hole 3 Support profiled rail 4 Sealing element 40 Lateral limb 41 Sealing lip 5 Actuating knob 6 Angle bracket 7 Fan 70 Flow duct 71 Inlet 72 Outlet 8, 8 Intermediate space 9 Damping element