EP2682556B1 - Seal assembly for a door or window - Google Patents

Description

TECHNICAL AREA

The present invention relates to a lowering seal for a door or a window according to the preamble of claim 1 and a seal arrangement for a door or a window according to the preamble of patent claim 4.

STATE OF THE ART

Door seals are commonly used in areas where light passages should be prevented and / or soundproofing should be ensured. Lowerable door seals usually consist essentially of a housing in the form of a downwardly open, U-shaped rail, a held in this housing and relative to this sliding sealing strip with a sealing element and a drive mechanism for lowering or lifting the sealing strip. Usually, the sealing strip automatically lowers when closing the door by a longitudinal force acting on an actuating rod or slider and sets the mechanical lowering mechanism in operation. Such door seals are made, for example EP 0 338 974 . DE 299 16 090 U and EP 0 509 961 known. These door seals have proven themselves.
Usually, the sealing strips lower when closing the door and lift again when the door is opened again. However, it is sometimes desirable to seal a door, for example, as desired by the occupants of the rooms, or just one to allow for certain leaks. For example, rooms should be better ventilated during the day and at night nevertheless be as soundproof as possible. Therefore, switchable sealing arrangements are known from the prior art.

DE 31 24 106 discloses a spring-loaded lowering seal which can be raised via a knob and a cable even when the door is closed in a non-sealing position.

US 5,964,060 shows a device for closing and sealing a door, wherein the sealing element is operated by a motor. An electronic keypad is used to activate the engine.

EP 1 944 457 describes a seal assembly having a controllable actuator in the form of a reverse lift solenoid to turn the seal on and off.

These sealing arrangements have the disadvantage that they have current-driven elements. This makes them relatively expensive and prone to failure. In addition, existing buildings can be retrofitted without power to the door hardly or only with great effort.

Further shows DE 297 20 978 U a device for locking doors in any pivoting angles. In this case, a folding lever actuates a cable, which acts on a lowering mechanism of a lowering seal. The folding lever is mounted in a front side of the door leaf. This device allows a lowering of the seal with the door open. When the door is closed, however, the seal is always lowered.

Also DE 10 2007 047 179 discloses a device to lower the seal with the door open. For this purpose, a ram arranged in the door leaf presses on a U-shaped, closed-down rail of the door seal.

Further disclosed DE 25 09 958 a magnetic seal in which the force field of the magnet is switched on and off to minimize wear of the sealing element.

EP 0 334 307 Attempts to minimize wear by a solenoid is energized only when closing the door and only then a sunk in the ground under the door seal is raised by a lifting device in a sealing position.

PRESENTATION OF THE INVENTION

It is therefore an object of the invention to provide a low-cost and low-interference seal assembly and a lowering seal for a door with a turn on and off lowering the seal.

This object is achieved by a lowering seal having the features of patent claim 1 and a seal arrangement having the features of patent claim 4.

The inventive sealing arrangement for a door or a window has a lowering seal with a sealing element and a lowering mechanism, which causes an automatic lowering of the sealing element when closing the door. The sealing arrangement has a switching element by means of which the automatic lowering mechanism can be switched on and off. The automatic lowering mechanism comprises a first and a second part, wherein the first part is movable relative to the second part and wherein only a common movement of the first and the second part automatically lowers the sealing element. When the automatic lowering mechanism, the switching element creates a connection between the first and second part, so that a movement of the first part is transferable to the second part and the sealing element is automatically lowered. When the automatic lowering mechanism is switched off, the connection between the first and second parts is interrupted, so that a movement of the first part remains without effect on the second part and the sealing element remains in the raised position. The connection is preferably mechanical.

Depending on the selected state, ie on or off lowering mechanism, this is Sealing element preferably always raised.

The switching element can be operated electronically or mechanically, in particular manually, depending on the embodiment. The inventive sealing arrangement can thus be formed purely mechanically. Preferably, no magnets are present. This reduces the costs and the susceptibility to interference. It is also easy to use.

Already existing doors and windows can be easily retrofitted, because no power supply in the door or in the window is necessary. This arrangement can be used for both swiveling or tilting door or window sash as well as sliding windows and doors.

The lowering mechanism is preferably part of the lowering seal, wherein the actuating element may be arranged for automatic detachment in the lowering seal, in the door frame or in another suitable part of the door.

In a preferred embodiment, the switching element has a driver which transmits the movement of the first part to the second part. A driver is a part that also moves another part when moving. The driver is moved in this case preferably from the first part.

If the switching element acts as a jumper, it preferably fills an engagement opening between the first and second parts with approximately positive engagement.

In a preferred embodiment, the switching element has a bolt which bridges a distance between the first and second part when the automatic lowering mechanism is switched on. This bolt is preferably used as a driver or jumper. The bolt may be fixed in the door or window sash, like a can-bolt bolt or a drive bolt, offset from the vertical end face of the door or window sash on which the lowering mechanism is deployed. This side is usually the hinged or hinge side of the door or window sash.

In a preferred embodiment, the bolt has at its lower end at least one downwardly projecting lateral nose, wherein the bolt is preferably fork-shaped at this lower end, and wherein the bolt engages with the automatic lowering mechanism with this lower end a tapered portion of the first or second part. As a result, the bolt transmits the movement of the first part to the second part, wherein an approximately positive connection is created, which ensures a secure transmission of motion without loss of power. Preferably, the shape, in particular the width of the bolt in this area is dimensioned so that the distance between a stop surface of the second part and the end of the first part is almost completely filled by the bolt.

Preferably, the bolt is raised and lowered perpendicular to a longitudinal direction of the lowering seal to turn on and off the automatic lowering mechanism. This allows the use of a lever or slide assembly for raising and lowering the bolt, as it is also used for Treibriegelstangen and Kantriegelbolzen.

Preferably, the switching element has a hand-operated lever or a displacement element in order to raise and lower the driver or the bolt. However, automatic mechanical devices as well as magnetic, electronic or electromagnetic devices can also be used for this purpose.

The switching element preferably penetrates a housing of the lowering seal to contact the first and / or the second part. For this purpose, the housing preferably has a passage opening.

As a trigger for the automatic movement of the Absenkdichtung can use the known triggers. Preferably, it is a slider which is displaceable in a longitudinal direction of the lowering seal. In this case, the slider preferably forms the first and the second part. The slider is preferably on one side of the door and is pressed in closing the door, so as to activate the lowering mechanism. It can also be present at both ends of the seal slide. Furthermore, a slider can also be activated by lateral displacement, as for example in EP 2 085 559 is disclosed.

The slider can also be arranged recessed in the door leaf, wherein in the door frame, a protruding element is present to move the slider.

The slider is preferably arranged with both parts in the door leaf.

In a preferred embodiment of the invention, the first part has a cavity in which the second part is held displaceably spring-loaded, wherein the second part protrudes from the first part. In this case, the switching element engages with the automatic lowering mechanism in this projecting area.

Preferably, the projecting portion of the second part has at least one stop surface for the switching element, so that movement of the switching element in a longitudinal direction of the lowering seal is transferable to the second part; i.e. the switching element can act as a driver. There may also be more stop surfaces.

As a lowering mechanism, the known mechanisms can be used. Preferably, the mechanism has at least one leaf spring, which extends in the longitudinal direction of the lowering seal, wherein the leaf spring is attached on the one hand to a housing of Absenkdichtung and on the other hand on the sliding relative to the housing sealing strip. The leaf spring is connected to the slider. Such a lowering mechanism is for example in EP 0 509 961 and DE 1 9516 530 described.

An inventive lowering seal for a door or a window has a sealing element and a lowering mechanism, which causes an automatic lowering of the sealing element when closing the door. The automatic lowering mechanism has a first and a second part, wherein the first part is designed to receive and forward an external release force in order to trigger the automatic lowering of the sealing element. Only a common movement of the first and second parts lowers the sealing element automatically. According to the invention, the first part is movable relative to the second part. By external This relative movement can be selectively blocked and released again so that the automatic lowering mechanism can be switched on and off.

Preferably, the automatic lowering mechanism comprises a slider which is slidably held in a longitudinal direction of the lowering seal and which has the first and the second part, wherein the second part slidably projects into the first part in a spring-loaded manner and has a stop surface at a distance from the first part, such that in bridging the distance between the abutment surface of the second part and the said stop surface facing the end of the first part by an external switching element, a common movement of the first part and the second part in the longitudinal direction of the Absenkdichtung is made possible.

This embodiment has the advantage that in existing Absenkdichtungen only the slide must be replaced and possibly an access to the slide must be created. A conversion of existing Absenkdichtungen in inventive Absenkdichtungen can thus be carried out easily and inexpensively.

Preferably, the first part is a hollow cylindrical pin and the second part is a cylinder pin engaging in this hollow cylinder, wherein the second part has at least two different outside diameters. The slider is thus stable. He is also easy to produce. The two parts can also be reversed, i. the first part intervenes in the second part.

In a preferred embodiment of the invention, the switching element for use in an above-mentioned sealing arrangement or for use with an above lowering seal on a liftable and lowerable bolt, wherein the bolt has at its free lower end at least one downwardly projecting side nose, said Bolt is preferably fork-shaped at this lower end.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Figur 1

eine perspektivische Darstellung einer Dichtungsanordnung mit Schaltelement und teilweise dargestellter Absenkdichtung, mit abgesenktem Bolzen;

Figur 2

eine perspektivische Darstellung der Dichtungsanordnung gemäss Figur 1 von einer zweiten Seite;

Figur 3

einen Längsschnitt durch das Schaltelement gemäss Figur 1, mit angehobenem Bolzen;

Figur 4

eine perspektivische Darstellung eines Teils der Dichtungsanordnung gemäss Figur 1, mit angehobenem Bolzen;

Figur 5

eine perspektivische Darstellung der Dichtungsanordnung gemäss Figur 1 von einer dritten Seite;

Figur 6

eine weitere perspektivische Darstellung eines Teils der Dichtungsanordnung gemäss Figur 1;

Figur 7

einen Längsschnitt durch die Dichtungsanordnung gemäss Figur 1 mit ausgeschaltetem Absenkmechanismus und nicht betätigtem Auslöser;

Figur 8

einen vergrösserten Ausschnitt gemäss Figur 7;

Figur 9

eine Ansicht der Dichtungsanordnung gemäss Figur 7 von vorne;

Figur 10

einen Längsschnitt durch die Dichtungsanordnung gemäss Figur 1 mit ausgeschaltetem Absenkmechanismus und betätigtem Auslöser;

Figur 11

einen vergrösserten Ausschnitt gemäss Figur 10;

Figur 12

eine Ansicht der Dichtungsanordnung gemäss Figur 10 von vorne;

Figur 13

einen Längsschnitt durch die Dichtungsanordnung gemäss Figur 1 mit eingeschaltetem Absenkmechanismus und nicht betätigtem Auslöser;

Figur 14

einen vergrösserten Ausschnitt gemäss Figur 13;

Figur 15

eine Ansicht der Dichtungsanordnung gemäss Figur 13 von vorne;

Figur 16

einen Längsschnitt durch die Dichtungsanordnung gemäss Figur 1 mit eingeschaltetem Absenkmechanismus und betätigtem Auslöser;

Figur 17

einen vergrösserten Ausschnitt gemäss Figur 16 und

Figur 18

eine Ansicht der Dichtungsanordnung gemäss Figur 16 von vorne.

A preferred embodiment of the invention is described below with reference to the drawings, which are merely illustrative and not to be construed restrictive. In the drawings show:

FIG. 1

a perspective view of a seal assembly with switching element and partially lowered lowering, with lowered bolt;

FIG. 2

a perspective view of the seal assembly according to FIG. 1 from a second page;

FIG. 3

a longitudinal section through the switching element according to FIG. 1 , with raised bolt;

FIG. 4

a perspective view of a portion of the seal assembly according to FIG. 1 , with raised bolt;

FIG. 5

a perspective view of the seal assembly according to FIG. 1 from a third party;

FIG. 6

a further perspective view of a portion of the seal assembly according to FIG. 1 ;

FIG. 7

a longitudinal section through the seal assembly according to FIG. 1 with the lowering mechanism switched off and the release not actuated;

FIG. 8

an enlarged section according to FIG. 7 ;

FIG. 9

a view of the seal assembly according to FIG. 7 from the front;

FIG. 10

a longitudinal section through the seal assembly according to FIG. 1 with deactivated lowering mechanism and activated trigger;

FIG. 11

an enlarged section according to FIG. 10 ;

FIG. 12

a view of the seal assembly according to FIG. 10 from the front;

FIG. 13

a longitudinal section through the seal assembly according to FIG. 1 with activated lowering mechanism and not actuated trigger;

FIG. 14

an enlarged section according to FIG. 13 ;

FIG. 15

a view of the seal assembly according to FIG. 13 from the front;

FIG. 16

a longitudinal section through the seal assembly according to FIG. 1 with activated lowering mechanism and activated trigger;

FIG. 17

an enlarged section according to FIG. 16 and

FIG. 18

a view of the seal assembly according to FIG. 16 from the front.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the FIGS. 1 to 18 a preferred embodiment of the inventive sealing arrangement is shown. As in FIG. 1 can be seen, the seal assembly on a lowering seal D, which is fixed in a lower or upper end face of a door leaf. Usually it is embedded in a groove. But it may also be mounted on the end face or disposed on a side surface of the door in derem upper or lower edge region.

The lowering seal D is essentially an automatically lowerable seal of known type. Preferably, it has a seal housing 4 with a downwardly U-shaped open cross section. The seal housing 4 comprises two mutually parallel side walls 42 and the side walls 42 interconnecting web 40. In the housing 4 is a relative to the housing 4 liftable and lowerable sealing strip 5, 6 attached. The sealing strip usually has a carrier profile rail 6 and a sealing element attached thereto, a sealing profile 5. The housing 4 and the support rail 6 are preferably made of aluminum. The sealing profile 5 is preferably made of rubber or an elastomeric plastic, preferably made of silicone. The sealing profile 5 may be formed in one or more pieces. From the prior art, the most varied forms are known which can be used.

The housing 4 is on one side, preferably in relation to the door hinge side, a slide 7 in front. This slide 7 is part of an automatic lowering mechanism, which runs in the interior of the housing 4 and on which the support rail 6 is attached. Such lowering mechanisms are also well known in the art. They usually have one or more leaf springs, which extend in the longitudinal direction of the housing 4. The leaf springs are fastened on the one hand to the housing 4 and on the other hand to the support rail 6. By one or two-sided force in the longitudinal direction of the housing 4, the springs bend and lower the sealing strip 5, 6 from. As a result, the sealing strip 5, 6 is pressed onto the floor and seals a gap between the bottom and bottom of the door leaf. Without external force, the springs relax and the sealing strip 5, 6 is raised. Preferably, the leaf springs are held under prestress in the housing 4.

The force is applied via the slide shown 7. When closing the door leaf, the slide 7 is pressed from the door frame in the housing 4 and thus biases the leaf springs. The automatic lowering mechanism is activated. If the door is opened again, the spring-loaded slide 7 is again pushed out of the housing 4, the leaf springs relax partially, and the sealing strip 5, 6 is raised again.

The slider 7 is usually a cylinder pin, which can be adjusted via a thread, how far he projects the housing 4 in the rest position.

This drop seal is as in FIG. 1 shown combined with a switching element S. This switching element S serves the automatic lowering of the sealing strip 4, 5 on and off as needed, so that even when the door is closed, the lowering seal can be maintained in the raised state.

The switching element S has a mounting rail 1, which is preferably attached to a lower end face of the door leaf. For this purpose, preferably mounting holes 10 for screwing the rail 1 are present. The rail 1 has at its lower end preferably on an angled mounting leg 11 to mount the rail 1 in the housing 4 of the Absenkdichtung D.

In the rail 1, a bolt 3 is lowered and raised. Preferably, for this purpose, an actuating lever 20 is present, which is accessible from the outside of the rail 1 and can be pivoted from an upper to a lower position. The actuating mechanism of the bolt 3 is in FIG. 3 good to see. The reference numeral 25 denotes a pivot axis 25 of the lever 20. At a coupling point 24, a push rod 23 is fixed to the lever 20. The push rod 23 slides along a guide rivet 26. The push rod 23 merges into an actuating rod 21, which extends approximately parallel to the longitudinal direction of the rail 1 and is angled at its lower end. At this horizontal leg 22 of the vertically extending bolt 3 is attached. Instead of the lever may also be a slider or other means to operate the bolt 3.

The bolt 3 has a bolt head 31, which is held in the horizontal leg 22, and a bolt body 30, which is preferably formed flattened. In this example he has a square profile. This is in FIG. 2 good to see. The lower free end of the bolt body 30 is formed as a fork 32. This is in FIG. 5 recognizable. Instead of a fork 32 may for example be present on one side downwardly projecting nose, ie only one side of the fork is formed.

The bolt 3 penetrates the housing 4, as in FIG. 2 is shown. For this purpose, the housing 4 has a through opening 41 in the web 40. Below this passage opening 41 of the inventive slider 7, as shown in FIG. 4 is shown.

The slide 7 is, see FIGS. 4 and 6 , formed in several parts. It has a first part 70, which projects the housing 4 as an actuating button of the lowering mechanism. This first part 70 is formed as a hollow cylinder, wherein it is formed closed to its projecting free end. A second part 72 is spring loaded in this first part 70. The second part 72 is preferably formed in one piece. The first and second parts 70, 72 are preferably made of metal or a plastic.

The second part 72 is also cylindrical, wherein it has a base body 720, a subsequent taper 722 and an engagement bolt 721 adjoining thereto. The engagement bolt 721 extends in the cavity of the first part 70, wherein it meets at the front end to a return spring 71. The engaging pin 721 is retained at its rear end by a retaining pin 75 penetrating the first part 70 in the cavity. This retaining pin 71 also secures the first part 70 on the second part 72 and prevents the two parts 70, 72 from sliding apart completely. Preferably, the engaging pin 721 is shaped to translate in the longitudinal direction of the first part 70 and thus the lowering seal D. can, however, that it is held against rotation in the cavity.

At the rear end of the main body 720, a transmission rod 73 is attached. Preferably, it is screwed into a cavity of the base body 720. By turning the housing 4 projecting first part 70 thus allows the distance of the first and second part relative to the transmission rod 73 and thus set the supernatant, i. the length of a protruding from the housing 4 portion of the slider 7. For simplified operation, the first part has a screw slot 74 for this purpose. The transmission rod 73 is connected to a leaf spring 9 of the lowering mechanism and transmits the external force acting on the slider 7 to the leaf spring 9.

The taper 722 of the second part 72 is preferably flattened, with the surfaces extending to the side walls 42 of the housing 4 as planes are formed. The taper 722 is sized so that it can also slide into the cavity of the first part 70. However, in the resting state of the lowering seal, ie in the raised state, the taper 722 protrudes toward the rear end of the first part 70. Between the first part 70 and the main body 720 of the second part 72 thus an engagement opening 8 is formed. In this engagement opening 8 engages the inventive bolt 3 and encloses with its fork 32, the taper 722. In this case, it forms a connecting part between the first and the second part 70, 72nd

Based on FIGS. 7 to 18 now the operation of this arrangement is described. In the situation according to FIGS. 7 to 12 the bolt 3 is raised and the engagement opening 8 of the slider 7 is free. In this position of the bolt 3, the automatic lowering mechanism is turned off, as will be explained below.

In the situation according to FIGS. 7 to 9 the slider 7 is not pressed. The first part 70 projects the housing 4. The sealing strip 5, 6 is in the raised state.

In the situation according to FIGS. 10 to 12 the slider 7 is pressed. The door is usually closed for this purpose. Since the second part 72 is slidable relative to the first part 70, the first part 70 slides over the taper 722 and the return spring 71 is tensioned. By this relative movement, the transmission rod 73 is not moved and the leaf springs 9 are not tensioned. The sealing strip 5, 6 remains raised, although the slider is pressed and thus activated.

If the external force influence ends, only the first part 70 pushes outward again due to the restoring spring 71, without influencing the position of the second part 72.

In the FIGS. 13 to 18 whereas the automatic lowering mechanism is switched on. For this purpose, the bolt 3 is lowered. It now engages in the engagement opening 8 and surrounds the taper 722. Preferably, it bears against a stop face 723 of the base body 720. The transition of the taper 722 to the base 720 is preferably for this purpose designed as a vertical step. Preferably, the lower end of the bolt 3 bridges the distance between the base body 720 and the first part 70 completely or only with little play.

In the FIGS. 13 to 15 the slide 7 is back to the housing 4 and the sealing strip 5, 6 is raised. In the FIGS. 16 to 18 the slider 7 is pressed again, preferably because the door is closed. Now, the longitudinal movement of the first part 70 is transmitted to the second part 72 via the bolt 3. The pin 3 can be pivoted thanks to the push rod 23 by a small angular range and can follow the movement of the first part 70 so. The bolt 3 acts as a driver or as a jumper. Preferably, it fills the engagement opening 8 with its fork approximately positively. Thanks to the lowered pin 3 and thus the second part 72 and the transmission rod 23 is moved and the leaf springs 9 are tensioned. The sealing strip 5, 6 is lowered.

Ends the external force influence, so pushed by the relaxation of the leaf springs 9 of the entire slide 7 with the bolt 3 again forward to the free end of Absenkdichtung and the sealing strip 5, 6 is raised again.

The inventive sealing arrangement thus enables by simple mechanical means on and off the automatic lowering mechanism. LIST OF REFERENCE NUMBERS 1 Mounting rail 5 weatherstrip 10 mounting hole 11 fastening leg 6 Mounting rail 20 actuating lever 7 pusher 21 actuating rod 70 first part 22 horizontal leg 71 Return spring 23 push bar 72 second part 24 coupling point 720 body 25 swivel axis 721 engagement pin 26 guide rivet 722 rejuvenation 723 stop surface 3 bolt 73 transmission rod 30 bolt body 74 screw slot 31 bolt head 75 Retaining pin 32 fork 8th engagement opening 4 seal housing 40 upper jetty 9 leaf spring 41 Through opening 42 Side wall D drop-down seal S switching element

Claims (14)

1. Lowering seal for a door or a window having a sealing element (5) and a lowering mechanism (7, 9) which causes the sealing element (5) to automatically lower when closing the door, wherein the automatic lowering mechanism (7, 9) has a first and a second part (70, 72), wherein the first part (70) is designed to take up and pass on an external triggering force in order to trigger the automatic lowering of the sealing element (5), wherein only a common movement of the first and the second part (70, 72) automatically lowers the sealing element (5), characterized in that the first part (70) is movable relative to the second part (72), and in that this relative movement can be selectively blocked and released again through an external effect in order to activate and deactivate the automatic lowering mechanism (7, 9).
2. Lowering seal according to Claim 1, wherein the automatic lowering mechanism (7, 9) has a slider which is held displaceably in a longitudinal direction of the lowering seal (D) and which has the first and the second part (70, 72), wherein the second part (72) projects displaceably into the first part (70) under spring loading and has at least one stop face (723) at a spacing from the first part (70), with the result that, when an external switching element (S) bridges the spacing between the at least one stop face (723) of the second part (72) and that end of the first part (70) facing this at least one stop face (723), a common movement of the first part (70) and of the second part (72) is made possible in the longitudinal direction of the lowering seal (D).
3. Lowering seal according to either of Claims 1 and 2, wherein the first part (70) is a hollow cylinder pin and the second part (72) is a cylinder pin engaging in this hollow cylinder, wherein the second part (72) has at least two different outside diameters.
4. Sealing arrangement for a door or a window, wherein the sealing arrangement has a lowering seal (D) according to one of Claims 1 to 3, wherein the sealing arrangement has a switching element (S) by means of which the automatic lowering mechanism (7, 9) can be activated and deactivated, characterized in that, with the automatic lowering mechanism (7, 9) activated, the switching element (S) creates a connection between the first and second part (70, 72), with the result that a movement of the first part (70) can be transmitted to the second part (70) and the sealing element (5) can be automatically lowered, and in that, with the automatic lowering mechanism (7, 9) deactivated, the connection between the first and second part (70, 72) is interrupted, with the result that a movement of the first part (70) remains without effect on the second part (72) and the sealing element (5) remains in the raised position.
5. Sealing arrangement according to Claim 4, wherein the switching element (S) has a driver (3) which transmits the movement of the first part (70) to the second part (72).
6. Sealing arrangement according to either of Claims 4 and 5, wherein the switching element (S) has a bolt (3) which, with the automatic lowering mechanism (7, 9) activated, bridges a spacing between regions of the first part (70) and of the second part (72).
7. Sealing arrangement according to Claim 6, wherein the bolt (3) has, at its lower end, at least one downwardly projecting lateral nose (32), wherein the bolt (3) is preferably fork-shaped at this lower end, and wherein, with the automatic lowering mechanism (7, 9) activated, the bolt (3) engages by way of this lower end around a tapered region (722) of the first or second part (70, 72).
8. Sealing arrangement according to either of Claims 6 and 7, wherein the bolt (3) can be raised and lowered perpendicularly to a longitudinal direction of the lowering seal (D) in order to activate and deactivate the automatic lowering mechanism (7, 9).
9. Sealing arrangement according to either of Claims 5 and 8, wherein the switching element (S) has a hand-actuable lever (20) or a displacing element in order to raise and lower the driver or the bolt (3).
10. Sealing arrangement according to one of Claims 4 to 9, wherein the automatic lowering mechanism (7, 9) has a slider (9) which is displaceable in a longitudinal direction of the lowering seal (D) and wherein the slider (7) forms the first and the second part (70, 72).
11. Sealing arrangement according to one of Claims 4 to 10, wherein the first part (70) has a cavity in which the second part (72) is held displaceably under spring loading, wherein the second part (72) projects from the first part (70) and wherein, with the automatic lowering mechanism (7, 9) activated, the switching element (S) engages in this projecting region (8).
12. Sealing arrangement according to Claim 11, wherein the projecting region (8) of the second part (72) has at least one stop face (723) for the switching element (S), with the result that a movement of the switching element (S) in a longitudinal direction of the lowering seal (D) can be transmitted to the second part (72).
13. Sealing arrangement according to one of Claims 10 to 12, wherein the first part (70) is a hollow cylinder pin and the second part (72) is a cylinder pin, wherein the second part (72) preferably has at least two different outside diameters and engages by way of a first end (721) in the hollow cylinder pin.
14. Sealing arrangement according to one of Claims 10 to 13, wherein the automatic lowering mechanism (7, 9) has at least one leaf spring (9) which extends in the longitudinal direction of the lowering seal (D), wherein the leaf spring (9) is fastened, on the one hand, to a housing (4) of the lowering seal (D) and, on the other hand, to a carrier strip (6) which carries the sealing element (5) and can be raised and lowered relative to the housing (4), wherein the leaf spring (9) is connected to the slider (7).

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