DE202010013588U1 - Detachable gasket for insertion into pipes - Google Patents

Abstract

Sealing inner sleeve (1) for insertion into tubes comprising:
a band (3) bent around a bending axis (Z) along a circumference such that an inner band end (11a) and an outer band end (11b) overlap each other, wherein
the inner seal sleeve (1) has at least one locking device (5) which
A recess (15) which is formed at least partially in the inner band end (11a) and whose longitudinal sides extend along the circumference,
- A locking device (7) and
A catch device attachment area (17) arranged in the outer band end (11b) for fastening the latching device (7)
having,
wherein the band (3) is expandable, so that the latching device (7) is displaceable relative to the recess (15) along a widening direction (W),
wherein the recess (15) has on the two opposite longitudinal sides a first engagement region (13a) and a second engagement region (13b),
wherein the latching device (7) comprises a first blocking element (31a), a second blocking element (31b) and at least one ...

Description

The The invention relates to a sealing inner sleeve for insertion in pipes.

With Help of inner gaskets can be existing piping rehabilitated, in particular, leaks of underground laid Sewer pipes are repaired without earthworks.

It It is known to seal leaks from pipes inside the pipe. Serve overlapped bent, with special Sealing elements provided cuffs made of elastic, corrosion-resistant Steel sheet, which in the sealed pipe to the leak be introduced. There they will be using a pneumatic or hydraulically inflatable cushion or packer or a mechanical Mounting device expanded so long until it is under compression the thermoset sealing elements tightly applied to the pipe inner wall to have.

A locking device holds the gasket in the expanded position. The DE 195 44 877 C1 discloses a connected to the steel plate locking device consisting of three pinions whose production is complicated and expensive.

The The object of the invention is to provide a sealing inner sleeve with an improved locking device, which is simple and is inexpensive to manufacture and improved locking security having.

These Task is by a gasket inside the cuff with the features of claim 1. Preferred embodiments emerge from the dependent claims.

Sealing inner sleeve according to a aspect

• – eine Ausnehmung, die zumindest bereichsweise in dem inneren Bandende ausgebildet ist und deren Längsseiten sich entlang des Umfangs erstrecken,
• – eine Rasteinrichtung und
• – einen in dem äußeren Bandende angeordneten Rasteinrichtungsbefestigungsbereich zur Befestigung der Rasteinrichtung

aufweist,
wobei das Band aufweitbar ist, so daß die Rasteinrichtung relativ zur Ausnehmung entlang einer Aufweitrichtung W verlagerbar ist,
wobei die Ausnehmung an den zwei gegenüberliegenden Längsseiten einen ersten Eingriffbereich und einen zweiten Eingriffbereich aufweist,
wobei die Rasteinrichtung ein erstes Sperrelement, ein zweites Sperrelement und zumindest ein Spannelement aufweist,
wobei das erste Sperrelement einen ersten komplementären Eingriffbereich aufweist, welcher ausgelegt ist, um in einer Ruheposition zumindest bereichsweise in den ersten Eingriffbereich einzugreifen, und das zweite Sperrelement einen zweiten komplementären Eingriffbereich aufweist, welcher ausgelegt ist, um in der Ruheposition zumindest bereichsweise in den zweiten Eingriffbereich einzugreifen,
wobei der erste komplementäre Eingriffbereich des ersten Sperrelements aus der Ruheposition entlang einer ersten Betätigungsrichtung B1 verlagerbar ist und der zweite komplementäre Eingriffbereich des zweiten Sperrelements aus der Ruheposition entlang einer zweiten Betätigungsrichtung B2 verlagerbar ist und
wobei das zumindest eine Spannelement ausgelegt ist
an den ersten komplementären Eingriffbereich eine Kraft entgegen der ersten Betätigungsrichtung B1 und an den zweiten komplementären Eingriffbereich eine Kraft entgegen der zweiten Betätigungsrichtung B2 anzulegen, um den ersten und zweiten ersten komplementären Eingriffbereich in der Ruheposition zu halten,
so daß die Rasteinrichtung nicht relativ zur Ausnehmung entgegen der Aufweitrichtung W verlagerbar ist.One aspect of the present invention relates to an inner gasket for insertion into tubes comprising:
a band which is bent around a bending axis along a circumference such that an inner band end and an outer band end overlap each other, wherein
the inner seal sleeve has at least one locking device, which

• A recess, which is formed at least partially in the inner band end and the longitudinal sides of which extend along the circumference,
• - A locking device and
• - An arranged in the outer band end latch device mounting portion for attaching the locking device

having,
wherein the band is expandable, so that the latching device is displaceable relative to the recess along a widening direction W,
wherein the recess has on the two opposite longitudinal sides a first engagement region and a second engagement region,
wherein the latching device comprises a first blocking element, a second blocking element and at least one tensioning element,
wherein the first blocking element has a first complementary engagement region, which is designed to engage the first engagement region at least partially in a rest position, and the second blocking element has a second complementary engagement region, which is designed to at least partially engage in the second engagement region in the rest position intervene,
wherein the first complementary engagement portion of the first locking element from the rest position along a first actuating direction B1 is displaced and the second complementary engagement portion of the second locking element from the rest position along a second actuating direction B2 is displaceable and
wherein the at least one tensioning element is designed
applying a force against the first actuation direction B1 to the first complementary engagement region and to apply a force against the second actuation direction B2 to the second complementary engagement region in order to hold the first and second first complementary engagement regions in the rest position,
so that the latching device is not displaceable relative to the recess against the widening direction W.

definitions

To the a simpler understanding of the invention will become apparent below defines a variety of terms by way of example.

The inner seal sleeve is in an operable state or in the inserted state, for example, inserted into a tube, formed substantially tubular or cylindrical with a cylinder axis Z. To form the inner seal sleeve, preferably a band, in particular a steel band made of stainless steel, is bent around a bending axis, so that the band ends overlap and - relative to the bending axis - an inner and an outer band end are formed. In this case, the bending axis after formation of the inner seal cuff substantially coincides with the cylinder axis Z. For a clear description of directions and geometric relations In the following description, it is assumed that the longitudinal extent of the inner seal sleeve is substantially parallel to the cylinder axis Z, which defines the z-axis of a cylindrical coordinate system. Together with the perpendicular to the cylinder axis Z and z-axis extending radius vector R and perpendicular to the z-axis and perpendicular to the radius vector R circumferential vector U is a cylinder coordinate system spanned.

Force- and / or direction of displacement (s) may relate to to the thus defined orthogonal cylindrical coordinate system be specified. Related in the following description using the term "essentially" with a directional indication, this means in particular that the direction to be indicated from said reference direction by less than about ± 45 degrees, preferably less than about ± 30 degrees, more preferably less than about ± 15 degrees, and more preferably about less than ± 10 degrees, especially less than ± 5 Degree, deviates. The term "essentially" can in particular a slight deviation from a nominal value describe, in particular a deviation within the manufacturing accuracy and / or within the necessary accuracy, so that a Effect is maintained, as it is present at the setpoint. Of the Term "essentially" can therefore be a deviation less than about 30%, less than about 20%, less than about 10%, less than about 5%, less than about 2%, preferably less than about 1% of a target value, etc. The term "substantially" includes the term "identical", d. H. without deviation from a setpoint, a desired position, etc.

The Terms "inner" and "outer", as used in this application describe the relative Position or arrangement with respect to the cylinder axis Z or the Radius vector R. Such is the area of the inner band end which is overlapped by the outer band end, arranged closer to the cylinder axis Z out. In other words describes the term "inside" in particular the inner volume of the inner seal sleeve, which from the outer surface is enclosed. It is also not necessary that the Seal inside sleeve is closed. For example, the inner seal sleeve at the substantially circular end faces to be open. Nevertheless, the term "im Inside "the internal volume, as if arranged a lid would. In other words, the term "im Inside "the interior volume of an ideally complete closed inner seal.

Of the Term "direction of actuation" or "direction of displacement" in The meaning of this invention describes a direction along which an element and / or an area actuated by a force and / or is displaceable or actuated and / or relocated is or at least partially elastically deformable is deformed, d. H. is actuated or actuated becomes.

Of the Term "expandable" is within the meaning of the present Invention to be understood that the substantially cylindrical bent band can be expanded. In other words increases in the expansion of the band's Circumference, whereby the overlap area of the inner and the outer band is downsized. It will the outer band along the inner band along the Aufweitrichtung W shifts. The expansion is by longitudinal extension the recess formed in the inner band along the Aufweitrichtung W limited because the latching device at least partially into the recess protrudes into it, so that an expansion possible only to the extent possible is until the latch abuts one end of the recess. The Expansion can be achieved for example by a Cushion or packer inserted inside the inner gasket, There inflated pneumatically or hydraulically and thus expanded becomes.

Of the Term "rest position", as defined in the present Invention, for example, describes the state or the position of one or more components, in particular the latching device. In the "rest position" are the first and second complementary engagement region of the first and second locking element respectively engaged with the corresponding first or second engagement portion of the recess in the inner band end. That is, the respective engagement areas and complementary engagement areas substantially in Form fit are. In particular, the outer one End of the tape relative to the inner end of the tape due to the positive connection not against the Aufweitrichtung W relocatable. This means, in particular a reduction in the circumference of the band of the inner seal sleeve is not possible in the rest position. The term "rest position", as used in the context of the present invention describes in particular that position of the components before the inner seal sleeve is introduced into a tube.

The term "actuating position", as used in the context of the present invention, describes, for example, a different state or position of the abovementioned state or position of the abovementioned components, in particular the blocking elements. In contrast to the rest position, an external force is exerted on one or more components of the inner seal in the actuation position bt, in particular as a result of a widening by means of a force on the band, wherein the force is directed from the inside radially outward. As described above, during a widening, a displacement of the outer band end or the latching device along the widening direction W takes place relative to the inner band end or the recess formed therein. In particular, by a sawtooth-shaped formation of the first and second engagement regions at the widening direction W extending longitudinal sides of the recess, a first or second force along the first and second actuating direction B1, B2 on the first and second complementary engagement region of the first and second Locking elements are exerted when the band is widened by an external radial force. Preferably, the first and second engagement regions are formed in regions and periodically tapered in the widening direction W. The first and second operating direction are different from each other. The first and second force or the first and second actuating direction B1, B2 are directed in particular from the edge of the recess substantially along or counter to the z-axis, ie in particular to the inner region of the recess. More specifically, in the transition from the rest position to the operating position, the first complementary engaging portion of the first locking member is displaced from the rest position along the first operating direction B1 to the operating position. Accordingly, the second complementary engagement region of the second locking element is displaced along the second actuating direction B2. In particular, it is possible in the actuation position that the inner and the outer band end are displaceable relative to each other, so that the band of the inner seal sleeve is expandable or is widened.

Of the Term "operating position" as used in the sense of The present invention describes the state of the invention Sealing inner sleeve or the position of their components, in one installed and ready for operation of the inner seal sleeve.

advantageously, is the inner seal of the invention, in particular their locking device, particularly simple design, which This is particularly easy to manufacture, the scrap content can be lowered during production and the unit costs reduce per inner gasket.

Preferred embodiments the inner gasket

Preferably the first actuating direction B1 extends substantially antiparallel to the second actuating direction B2, d. H. essentially opposite to this.

advantageously, the latching device is particularly easy to produce when the first and second actuating direction B1, B2 to each other antiparallel, in particular each perpendicular to the longitudinal extent the recess, d. H. each perpendicular to the Aufweitrichtung W extend. Particularly advantageously, only one clamping element, for example in the form of a spring, necessary, which at the same time a force against the first actuation direction B1 at the first complementary engagement region of the first blocking element and a force against the second operating direction B2 at the second complementary engagement portion of the second Create locking element.

Preferably the latching device at least one cover element and a fastening means for releasably attaching the latching device to the latch mounting area on.

Especially Preferably, the fastening means is a screw connection, in particular a Phillips screw or a hexagon socket screw. advantageously, is such a screw detachable, so that the Detent removed from the outer end of the tape can be. In particular, the expanded band of the inner seal sleeve be bent back together with dismounted latching device, d. H. the circumference of the inner seal sleeve be reduced. Particularly preferably, the band of the inner seal sleeve in the expanded state at least partially elastic or resilient deformed, so that the expanded band after removal or unlocking the latching device due to the elastic restoring force assumes a state of a smaller extent. advantageously, can such a used and expanded in a sewer pipe, ready-to-use inner gasket removed from the sewer pipe become. In particular, the used remote inner seal cuff at least partially reused.

Preferably are the cover element and the fastening means in one piece educated.

Preferably are the first blocking element and the second blocking element respectively plate-shaped. Advantageously, can the blocking elements then punched out of a steel or sheet metal strip or cut out, so that the locking elements easy and inexpensive to manufacture.

Preferably, the blocking elements have a greater thickness than the inner band end. Particularly preferably, the ratio of the thickness of the locking elements to the thickness of the inner band end, between about 1 and about 4, more preferably zwi is about 1.1 and about 2, more preferably between about 1.2 and about 1.5, wherein the thickness of the inner band end preferably from about 0.1 mm to about 2 mm, more preferably from about 0.5 mm to about 1.5 mm, in particular about 1 mm, is sufficient.

Preferably the first blocking element and the second blocking element are substantially identical or congruent formed. Advantageously, then only produce a blocking element, wherein the locking elements in the Installation of the locking device to be rotated accordingly.

Preferably the locking elements are formed pivotable about the fastening means.

Preferably the clamping element is a wire-shaped or leaf-shaped Feather. Advantageously, such a clamping element is simple and inexpensive to manufacture, as a corresponding elastic or resilient wire or a corresponding Tape made of spring steel only cut to length and must be bent.

Preferably the blocking elements are integrally formed or one piece. This item then includes in particular two halves, which form the blocking elements.

Preferably, the one-piece locking elements have a solid-state joint, that is, the first blocking element and the second blocking element 31b are connected by a thin layer, which is designed as a solid-body joint. Particularly preferably, the solid-body joint is elastic or resilient and functions as a clamping element.

Preferably the blocking elements each have an actuation area, by the locking elements by means of a tool from the rest position be transferred to the operating position can. An actuation area may be in particular in the form be formed a bore. Advantageously, after reaching the operating position, the inner end of the tape relative to be shifted to the outer end of the tape, for example to bend a gasket inside. Especially has the cover element, which the locking elements to the interior of Cover the inside of the gasket, corresponding tool passages on, so that the tool from the inside into the Aktuierungsbereiche can intervene. The tool passages are in particular such designed such that the Aktuierungsbereiche the locking elements can be shifted accordingly, so that the Locking device transferred from the rest to the operating position can be.

Preferably the inner seal sleeve has two locking devices on. In particular, the two extension devices are attached to the End portions of the substantially tubular inner seal cuff arranged. Particularly preferably, the two Arreiterungsvorrichtungen are symmetrical to the center of the inner seal cuff, d. H. essentially equidistant from its center or center of gravity. advantageously, so become the twists between the inner and the outer End of the tape minimized, so that the inner seal cuff uniform and essentially torsion free or can be widened without tilting.

The The present invention is not limited to the above, by way of example Limited embodiments. Rather, you can individual elements and / or features of each described aspect and / or any described embodiment individual elements and / or features of the further aspects and / or further embodiments combined in any manner with each other and thus further aspects and / or embodiments be formed.

figure description

following are preferred embodiments of the present invention explained by way of example with reference to the accompanying drawings. Show it:

1 a cross-section perpendicular to the z-axis through a sealing inner sleeve comprising a curved band and a latching device;

2 a detailed cross-section perpendicular to the z-axis through the locking device of the inner seal sleeve;

3 a plan view of the latching device from the direction of the interior of the inner seal sleeve;

4 a detailed plan view of the latching device in the rest position;

5 a detailed plan view of the latching device in the operating position; and

6 : An exploded perspective view of the locking device of the inner seal sleeve.

1 shows a cross section perpendicular to the z-axis through a seal inner sleeve 1 for insertion into pipes, in particular for sealing leaks and for mechanical stability sieren of existing sewer pipes. The illustrated inner seal 1 is made of a resilient material, preferably of a band 3 made of sheet metal or stainless steel. The ribbon 3 preferably has a thickness of about 0.1 mm to about 2 mm, more preferably from about 0.5 mm to about 1.5 mm, in particular about 1 mm. The ribbon 3 is substantially tubular or cylindrical so bent together that the band ends 11a . 11b overlap each other. This allows an inner band end 11a and an outer band end 11b differ, which overlap in the circumferential direction U.

The gasket 1 can be widened at any point of a sewer pipe by suitable devices, so that it rests against the inside of the sewer pipe substantially positive fit. In particular, the inner seal sleeve 1 be coated at least partially with a (not shown) coating or hose made of elastic, resistant, especially waterproof material.

This embodiment of the inner seal sleeve 1 has a locking device 5 on to the inner gasket 1 after widening to keep permanently in the expanded state.

In the 2 detailed locking device 5 includes a recess 15 (in 2 not visible) in the inner band end 11a is formed and a locking device 7 at the outer band end 11b is arranged and the recess 15 at least in some areas. The outer band end 11b has a detent attachment area 17 on, which is formed in this embodiment as a press nut. The press-nut may have, for example, a thread M2, M3, M4, M5, M6, M7 or M8 to a corresponding screw, which serves as a fastener 55 serves to record. Alternatively, a corresponding thread directly in the outer band end 11b be educated. The fastener 55 attached to the outer band end 11b a cover element 51 so that the inner band end 11a at least partially between the outer band end 11b and the cover element is arranged. Through the cover element 51 may preferably be a force along the radius vector R on the inner band end 11a be applied, so that in the region of the locking device 7 the outer and the inner band end lie substantially positively against each other and in particular only along the expansion direction W relative to each other are displaced.

Between the cover element 51 and the outer band end 11b inside the recess 15 (in 2 not visible) are the first and second blocking element 31a . 31b and the clamping element 39 (in 2 not shown). The blocking elements 31a . 31b are preferably formed as plate-shaped elements. In order to obtain a secure arrangement and blocking effect, the thickness of the locking elements 31a . 22b greater than the thickness of the inner band end 11a , Depending on the radius of curvature of the inner band end 11a and the extension of the cover element 51 along the expansion direction W is the preferred ratio of thickness of the blocking elements 31a . 31b to thickness of the inner band end 11a , between about 1 and about 4, more preferably between about 1.1 and about 2, more preferably between about 1.2 and about 1.5.

3 and 4 show a plan view of the locking device 5 in rest position with the locking device 7 from the direction of the interior of the inner seal sleeve 1 , The locking device 5 includes a recess 15 in the inner band end 11a is formed and extends with its longitudinal sides substantially along the expansion direction W and along the circumference.

At least in some areas are on the two opposite longitudinal sides of the recess 15 a first intervention area 13a and a second engagement area 13b educated. In this embodiment, the engaging portions 13a . 13b as a series of protrusions 19 formed sawtooth, preferably mirror image of the axis of symmetry S, wherein the first and second engagement region 13a . 13b are periodically tapered in widening W trained. There is every single lead 19 formed substantially as a triangle, wherein a first leg as a sliding portion 21 serves, which preferably includes an angle α of about 20 degrees to about 60 degrees with the expansion direction W. Particularly preferably, the angle α is between about 30 degrees and about 50 degrees, in particular about 45 degrees. A second leg serves as a latching area 23 which extends substantially perpendicular to the expansion direction W. The projections 19 are preferably arranged in a spatial period of from about 1 mm to about 5 mm, more preferably from about 1.5 mm to about 4 mm, in particular about 2 mm.

The blocking elements 31a . 31b are preferably plate-shaped. In particular, the locking elements 31a . 31b identically formed and arranged in mirror image to the axis of symmetry S. In other words, the locking elements 31a . 31b formed congruent to each other. The blocking elements 31a . 31b each have complementary engagement areas 33a . 33b which are designed in the engaging areas 13a . 13b to be able to intervene. Preferably, the complementary engagement areas 33a . 33b as corresponding projections 35a . 24b educated.

In this embodiment, the locking elements 31a . 31b about the axis D of the fastener 55 pivotally formed. By pivoting about the axis D is the first complementary engagement area 33a of the first locking element 31a from the rest position along a first actuating direction B1 displaced. Accordingly, the second complementary engagement region 33b of the second locking element 31b from the rest position along a second actuation direction B2 displaced. To achieve the pivoting, have the locking elements 31a . 31b each a circular arc-shaped return 41a . 41b on, which is essentially the radius of the fastener 55 used screw has. Furthermore, a clamping element engages 39 , For example, in the form of a spring wire or wire or leaf spring, in each case a clamping element receptacle 43a . 43b the respective blocking elements 31a . 31b a, so that the complementary engagement areas 33a . 33b the blocking elements 31a . 31b experience a force against the first and second actuating direction B1 and B2. Without external force, the locking elements 31a . 31b held in the rest position, so that at least partially a positive engagement between respective engagement areas 13a . 13b and the corresponding complementary engagement areas 33a . 33b exists, which prevents the outer band end 11b relative to the inner band end 11a shifted against the Aufweitrichtung W.

Preferably, the complementary engagement regions include 33a . 33b each several projections 35a . 35b to get into the appropriate engagement areas 13a . 13b intervene. In particular, the projections 35a designed for a displacement of the first complementary engagement area 33a along the first actuating direction B1 substantially simultaneously disengaged from the first engaging portion 13a to get. Preferably, therefore, the connecting line of the tips closes 37a the corresponding projections 35a in the rest position with the longitudinal extension of the recess 15 , ie, with the widening direction W, an angle β of about 5 degrees to 20 degrees, more preferably from about 8 degrees to about 15 degrees, in particular about 10 degrees, a. By pivoting the first locking element 31a at a corresponding angle reach all the projections 35a of the first complementary engagement area 33a substantially simultaneously disengaged from the first engagement region 13a , Accordingly, the corresponding projections 35b of the second complementary engagement area 33b be formed to by pivoting the second locking element 31b by a corresponding angle all projections 35b of the second complementary engagement area 33b substantially simultaneously disengaged from the second engagement region 13b bring to.

5 shows a detailed plan view of the locking device 7 in operating position. Due to a shift of the outer band end 11b or the latching device attached thereto 7 by expanding by means of an external force, starting from the rest position, the first complementary engagement area 33a along the first actuating direction B1 and the second complementary engagement region 33b along the second direction of actuation B2 extending substantially antiparallel thereto. During the displacement, the locking elements 31a . 31b pivoted about the rotation axis D and the tensioning element 39 curious; excited. In this case, the clamping element exercises due to its restoring force on the locking elements 31a . 31b in each case a corresponding force against the first or second actuating direction B1 or B2. Alternatively, the locking elements 31a . 31b be formed integrally, wherein the two halves, ie the first blocking element 31a and the second blocking element 31b , via a thin body, which is designed as a solid-body joint, are connected. Particularly preferably, the solid-state joint can be elastic or resilient, so that it acts as a tensioning element 39 can act. By further expansion and a related further relative displacement of the outer band end 11b relative to the inner band end 11a , the locking device 7 by means of the tensioning element 39 transferred back to the resting position. A further expansion of the inner seal sleeve 1 or the band 3 transfers the locking device 7 in the following again in the actuation position and so on, until the inner seal sleeve 1 or the band 3 has reached the desired or the maximum extent. The locking device 7 finally remains in the rest position, so that a shift back the band ends 11a . 11b is prevented against the Aufweitrichtung W and the inner seal cuff 1 or the band 3 maintains the extent achieved. This is the inner seal sleeve 1 in the sewer pipe in which it was introduced, sufficiently and permanently fixed.

Preferably, the inner gasket is 1 renaturalisation. This is in particular the locking device 7 releasable, so that the tape 3 due to its own elastic spring force can reduce its scope. In particular, the fastening means 55 a detachable screw, so that with the disassembly of the fastener 55 and thus the cover element 51 also the blocking elements 31a . 31b and the clamping element 39 fall out of position so that the outer band end 11b relative to the inner band end 11a is freely relocatable. Advantageously, the band 3 and the parts of the latch 7 reusable.

6 shows an exploded perspective view of a modified embodiment of the locking device 5 the inner gasket 1 ,

In this embodiment, the outer band end 11b a detent attachment area 17 in the form of a press nut 17 on, wherein a cylindrically shaped portion of the press nut 17 from the outer end of the tape 11b protrudes to the corresponding circular arc recesses 41a . 41b the blocking elements 31a . 31b to get in shape. The blocking elements 31a . 31b are here about the axis of rotation D of the press nut 17 pivoted. Furthermore, the locking elements 31a . 31b one actuation area each 45a . 45b on, in particular in the form of a bore through which the locking elements 31a . 31b can be actuated by means of a tool. In particular, the locking elements 31a . 31b be transferred by the actuation of the rest position in the operating position, so that the inner end of the tape 11a relative to the outer band end 11b is freely relocatable.

So that the tool in the Aktuierungsbereiche 45a . 45b can engage, assigns the cover element 51 corresponding tool passages 53a . 53b on. The tool passages 53a . 53b are designed such that the Aktuierungsbereiche 45a . 45b can be displaced accordingly, so that the locking device 7 can be transferred from the rest to the operating position.

The present description of the preferred embodiments is not limited to the above-described respective figures. Rather, the comments on the respective figures apply mutatis mutandis for the other figures.

As well apply the statements made to the figures also for the preceding aspects and embodiments. Consequently can be described by means of the (respective) figures Individual features and / or by means of the individual features of the aspects and / or (Individual features) embodiments further preferred embodiments are formed, with the individual features combined with each other can be.

1

Seal inner sleeve

5

locking device

7

locking device

3

tape

11a

inner tape end

11b

outer tape end

13a, 13b

first and second engagement area

15

recess

17

Latching device mounting area

19

head Start

21

sliding

23

Rest area

31a, 31b

first and second blocking element

33a, 33b

first and second complementary engagement area

35a, 35b

corresponding head Start

37a, 37b

Tips of the corresponding projections 35a . 35b

39

clamping element

41a, 41b

arcuate return

43a, 43b

Clamping element receptacle

45a, 45b

Aktuierungsbereich

51

cover element

53a, 53b

Tool passages

55

fastener

B1, B2

first and second actuating direction

D

axis of rotation

R

radius vector

S

axis of symmetry

U

comprehensive vector

W

expansion direction

Z

Cylinder axis z-axis

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19544877 C1 [0004]

Claims (13)

Sealing inner sleeve ( 1 ) for insertion into tubes: a band ( 3 ), which is bent around a bending axis (Z) along a circumference such that an inner band end ( 11a ) and an outer band end ( 11b ) overlap each other, the seal inner sleeve ( 1 ) at least one locking device ( 5 ), which - a recess ( 15 ), which at least partially in the inner band end ( 11a ) is formed and whose longitudinal sides extend along the circumference, - a latching device ( 7 ) and - one in the outer band end ( 11b ) arranged latch mounting area ( 17 ) for fastening the latching device ( 7 ), wherein the tape ( 3 ) is expandable, so that the latching device ( 7 ) relative to the recess ( 15 ) along a Aufweitrichtung (W) is displaceable, wherein the recess ( 15 ) on the two opposite longitudinal sides a first engagement area ( 13a ) and a second engagement area ( 13b ), wherein the latching device ( 7 ) a first blocking element ( 31a ), a second blocking element ( 31b ) and at least one tensioning element ( 39 ), wherein the first blocking element ( 31a ) a first complementary engagement area ( 33a ), which is designed to at least partially in a rest position in the first engagement area ( 13a ) and the second blocking element ( 31a ) a second complementary engagement area ( 33b ), which is designed to at least partially in the rest position in the second engagement region ( 13b ), the first complementary engagement area ( 33a ) of the first blocking element ( 31a ) is displaceable from the rest position along a first actuation direction (B1) and the second complementary engagement region (B1) 33b ) of the second blocking element ( 31b ) is displaceable from the rest position along a second actuating direction (B2) and wherein the at least one tensioning element ( 39 ) is adapted to the first complementary engagement area ( 33a ) a force against the first actuating direction (B1) and to the second complementary engagement region ( 33b ) to apply a force against the second actuating direction (B2) to the first and second first complementary engagement area (B2) 33a . 33b ) in the rest position, so that the latching device ( 7 ) not relative to the recess ( 15 ) is displaceable counter to the widening direction (W). Sealing inner sleeve ( 1 ) according to claim 1, wherein the first actuating direction (B1) is substantially antiparallel to the second actuating direction (B2). Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the latching device ( 7 ) at least one cover element ( 51 ) and a fastening means ( 55 ) for releasably securing the latching device ( 7 ) on the detent attachment area ( 17 ) having. Sealing inner sleeve ( 1 ) according to claim 3, wherein the cover element ( 51 ) and the fastening means ( 55 ) are integrally formed. Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the first blocking element ( 31a ) and the second blocking element ( 31b ) are plate-shaped. Sealing inner sleeve ( 1 ) according to claim 5, wherein the blocking elements ( 31a . 31b ) have a greater thickness than the inner band end ( 11a ). Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the first blocking element ( 31a ) and the second blocking element ( 31b ) are formed substantially identical or congruent. Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the blocking elements ( 31a . 31b ) around the fastener ( 55 ) are pivotable. Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the tensioning element ( 39 ) is a wire-shaped or leaf-shaped spring. Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the blocking elements ( 31a . 31b ) are integrally formed. Sealing inner sleeve ( 1 ) according to claim 10, wherein the blocking elements ( 31a . 31b ) have a solid-state joint. Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the blocking elements ( 31a . 31b ) each have an actuation area ( 45a . 45b ), by which the blocking elements ( 31a . 31b ) can be transferred by means of a tool from the rest position to the operating position. Sealing inner sleeve ( 1 ) according to one of the preceding claims, wherein the inner seal sleeve ( 1 ) two locking devices ( 5 ) having.