DE102017126954A1 - Threshold connector and its use - Google Patents

Abstract

The invention relates to a threshold connector (10) for connecting a hollow chamber profile (20) having at least one hollow chamber (22) to the upper side (31) of a sleeper (1). The threshold connector (10) comprises at least one threshold holder (11) and a filling core (12) insertable into the hollow chamber (22), wherein the threshold holder (11) has a seal (16) on its upper side (14) facing the filling core (12) , To facilitate assembly, the filler core (12) and / or the threshold holder (11) has means for effecting a resilient, spaced attachment of the filler core (12) to the threshold holder (11). The filler core (12) is initially provided for installation the threshold holder (11) yieldingly spaced and the threshold holder (11) with the top (31) of the threshold (1) fixedly connected. Subsequently, the hollow chamber profile (20) is placed on the threshold connector (10) and the filling core (12) inserted into the hollow chamber (22). Thereafter, the filling core (12) in particular by a screw (30) fixed to the hollow chamber profile (20). By means of at least one screw (8), which is screwed from the underside of the threshold (1) by the threshold holder (11) in the filling core (12), the hollow chamber profile (20) on the top (14) of the threshold holder (11) and / or between the hollow chamber profile (20) and the top (14) of the threshold holder (11) arranged seal (16) pressed, wherein the distance between the filling core (12) and threshold holder (11) is reduced by compression of the seal (16).

Description

The invention relates to a multi-part threshold connector for connecting a hollow chamber profile with the top of a threshold with a threshold holder and an insertable into a hollow chamber of the hollow chamber filling core and a system with hollow section, threshold and multi-part threshold connector.

Technical area

Threshold connectors according to the present invention serve to connect a hollow chamber profile, in particular a post or frame profile with approximately T-, L- or Z-shaped cross-section, with a threshold profile, wherein the threshold profile has no flat surface. Basically, two different methods for connecting hollow chamber profiles with such thresholds are used in the prior art: in the first method, the end face of the hollow chamber profile is milled so that it corresponds exactly to the surface contour of the threshold profile. In the second method, the end face of the hollow chamber profile is usually cut to length vertically and connected by means of a threshold connector with the threshold profile, the threshold connector compensates for the uneven surface contour of the threshold, at least in some areas. The invention relates to a system according to the second method.

The end face of the hollow chamber profile must be sealed against the top of the sleeper connector in the rule. For this purpose, permanently elastic seals are often used, which must be compressed in order to achieve the desired sealing effect, at least a few tenths of a millimeter during assembly of the sleeper connector.

State of the art

From the DE 200 22 411 U1 a frame-post connection is known in which a hollow chamber profile by means of an eccentrically guided connecting element presses the end face of the post on the frame, thereby compressing a seal. However, such designs require extremely expensive connector designs.

From the DE 20 2007 015 357 U1 is a mechanical connector for connecting a hollow chamber profile with a frame known in which the connector consists of one piece of a base body and a vertically projecting therefrom, which can be inserted into a hollow chamber of the hollow chamber profile filling core. By special arrangement of the fasteners between the threshold connector and the frame profile eliminates a seal in this area.

From the DE 197 34 876 A1 is a connecting element for connecting a hollow chamber profile with an abutting profile part in door or window construction with a plug in the hollow profile holding element known in which a spreading element is arranged in the holding element, which is so displaceable or rotatable that thereby surfaces of the holding element against the Hollow chamber profile are pressed. Such a construction is on the one hand consuming and on the other hand does not solve the problem of sealing between the abutting profile part and the connector.

From the WO 2015/011092 A1 is a generic multi-part threshold connector with a main body (threshold holder) and a separate, insertable into a hollow chamber of the hollow chamber filling core known. In this construction, however, the filler core must first be accurately positioned in the hollow chamber of the hollow chamber profile and screwed there with the hollow chamber profile, then by at least one projecting through the threshold and the threshold holder in the filling screw a sufficient Anspresskraft between the end face of the hollow chamber profile and the top to enable the threshold holder. However, this exact positioning of the filling core in the hollow chamber of the hollow chamber profile when screwing is complicated and leads in case of incorrect execution to lack of tightness of the connection.

task

Object of the present invention is therefore to provide a multi-part generic threshold connector for connecting a hollow chamber profile with the top of a threshold, which provides a simplified installation while ensuring a tight connection.

Presentation of the invention

The terms threshold connectors and threshold holders are often used interchangeably. In the present application, however, is referred to as a threshold holder of the main body of a multi-part threshold connector, which rests when used properly with its underside on the threshold top and with its top on the end face of the hollow chamber profile. Accordingly, in the present application as a threshold connector denotes the combination of threshold holder and the insertable into a hollow chamber of the hollow chamber filling core.

The invention solves the above object by a threshold connector according to claim 1, preferably in conjunction with one or several of the features of the dependent claims 2-6, or by a system according to claim 7 and a method according to claim 8.

Core of the present invention is that threshold holder and filler core before final assembly compliant, but spaced from each other are connected. The distance between the threshold holder facing the end of the filling core to the top of the threshold holder is a few tenths to a few millimeters, preferably 0.2 to 6 mm. In the subsequent fixation of the Füllkerns in the hollow chamber of the hollow chamber profile allows this yielding, but spaced attachment of the Füllkerns on the threshold holder without additional measures an exact positioning of the Füllkerns, so that in the subsequent tightening the connection pressing the end face of the hollow chamber profile with the threshold holder or an interposed seal is made possible. By the inventive compliant, but spaced attachment of the filling core to the threshold holder, the actual assembly is much easier and ensures the sealing function between the end face of the hollow chamber profile and the threshold holder.

According to a first embodiment of the invention, the spaced resilient attachment of the filling core to the threshold holder is effected by elastic elements, preferably resilient elements such as resilient tongues, webs or the like, in connection with locking elements or the like. Alternatively or in conjunction with elastic elements and fixed stops, for example, small cams, bars or the like. Can be used which have a predetermined breaking point, tear off at a defined load and thus cause the necessary flexibility.

According to the invention, the threshold holder has on its filling core and thus the end face of the hollow chamber profile facing top a seal which is compressed during final assembly or during later tightening of the compound. This seal can be a flat seal, for example consisting of sponge rubber, which at least partially covers the outer contour of the end face of the hollow chamber profile during final assembly. This seal can rest loosely on the top of the threshold holder or, for example glued to the top of the threshold holder, force, material or positively connected or mechanically fastened. Alternatively, the threshold holder on its upper side also have a completely or partially circumferential linear seal, for example made of thermoplastic elastomer (TPE), sponge rubber or another foam, wherein the linear seal, for example glued to the top of the threshold holder, non-positively, material or form-fitting can be connected or mechanically fastened and at least partially covers the outer contour of the end face of the hollow chamber profile in the final assembly.

According to a further preferred embodiment of the invention, the threshold holder on its underside facing the threshold full or part of a seal, which may for example consist of sponge rubber. Alternatively, the threshold holder on its underside also have a completely or partially circumferential linear seal, for example made of thermoplastic elastomer (TPE), sponge rubber or another foam, the linear seal, for example, glued to the underside of the threshold holder, non-positively, material or form-fitting connected or mechanically attached.

Preferably, the filler core is made of plastic, particularly preferably by injection molding. This allows in a particularly efficient manner to provide resilient elements, in particular one or more spring tongues on the underside of the filler core facing the threshold holder. However, corresponding spring-elastic elements may alternatively also be provided on the upper side of the threshold holder.

Preferably, the threshold holder is made of plastic, particularly preferably by injection molding. This allows in a particularly rational manner, locking elements and guide pins or the like. provided.

These elastic elements, together with correspondingly arranged fastening means, preferably one or more clip connections, provide for the flexible, but spaced attachment of the filler core to the threshold holder provided according to the invention.

As far as according to a preferred embodiment of the invention, the attachment between threshold holder and the filler core is made by at least one clip connection, this may for example consist of one or more snap hooks on the top of the threshold holder and corresponding thereto undercut webs on the underside of the filling core, wherein when placing the Füllkerns on the top of the threshold holder engage the latching hooks behind the webs latching.

As far as the flexible, but spaced attachment of the filler core on the threshold holder with elastic means such as spring tongues, spring bars o. The like. Is effected, the length of the or Latch hook (s) thereby advantageously chosen so that the spring tongues o. The like. Not or only slightly loaded and thus not or at least not completely pressed so that a desired elastically yielding, but spaced attachment of the filler core is achieved at the threshold holder.

It is also within the scope of the present invention to provide a different type of spaced resilient attachment of the filler core to the sill holder, for example by use of a threaded connection which is not fully tightened in combination with at least one other resilient element, for example foam or a metal spring, in particular also in the form of a spiral spring.

According to a particularly preferred embodiment of the invention, one or more integrally connected at both ends with the filler core or the threshold holder spring bars are used, wherein at one of the two ends, the connection between the spring bars and the filling core or the threshold holder is designed as a predetermined breaking point. When tightening the protruding through the threshold and the threshold holder in the filler core screw during final assembly breaks the predetermined breaking point and allows a better compliance between the filler core and the threshold holder. At the same time, this ensures that during the pre-assembly of the threshold holder and filling core to the threshold connector while a still elastic, but relatively stiff, after breaking the predetermined breaking point but more yielding connection is achieved.

For assembly, first the filler core with the threshold holder are yieldingly spaced and the threshold holder is firmly connected to the top of the threshold. The order of these two process steps is not critical. Preferably, however, the threshold connector is delivered preassembled, that is, filler core and sill holders are already factory-fitted yieldingly spaced. The joining of the threshold holder and the threshold preferably takes place - as is known in the art - by means of screws which are rotated either from the underside of the threshold into the threshold holder or preferably from the top of the threshold holder into the threshold.

Subsequently, the hollow chamber profile is placed on the threshold connector or the filling core inserted into the hollow chamber. Thereafter, the filling core is firmly connected in particular by a screw with the hollow chamber profile. By means of at least one screw which is screwed from the underside of the threshold by the threshold holder in the filling core, the hollow chamber profile is pressed onto the top of the threshold holder and / or arranged between the hollow chamber profile and the top of the threshold holder seal, wherein the distance between the filling core and Threshold holder is reduced accordingly and the seal is compressed.

As far as according to the description of this application, the filling core is inserted into a hollow chamber of the hollow chamber profile, so of course also comprises the possibility to introduce the filling core in a reinforcing profile, which in turn was introduced into a hollow chamber of the hollow chamber profile.

list of figures

• 1 eine perspektivische Ansicht in Form einer Explosionszeichnung mit Schwelle, Schwellenverbinder und Blendrahmenprofil,
• 2 den Schwellenverbinder vor dem Zusammenbau,
• 3 den Füllkern in perspektivischer Ansicht von oben,
• 4 den Füllkern in perspektivischer Ansicht von unten,
• 5 den Schwellenhalter in perspektivischer Ansicht von oben,
• 6 den Schwellenhalter in perspektivischer Ansicht von unten,
• 7 Detail „C“ gemäß 5,
• 8 die fertige Verbindung mit Schwelle, Schwellenverbinder und Blendrahmenprofil,
• 9 einen Horizontalschnitt durch das mit der Schwelle verbundene Blendrahmenprofil,
• 10 einen Vertikalschnitt „AA“ gemäß 9 vor dem Verschrauben,
• 11 einen Vertikalschnitt wie in 10 nach dem Verschrauben.

The invention will be explained in more detail with reference to an embodiment and the drawing. It shows:

• 1 a perspective view in the form of an exploded view with threshold, threshold connector and frame profile,
• 2 the threshold connector before assembly,
• 3 the filling core in a perspective view from above,
• 4 the filling core in perspective view from below,
• 5 the threshold holder in a perspective view from above,
• 6 the threshold holder in perspective view from below,
• 7 Detail "C" according to 5 .
• 8th the finished connection with threshold, threshold connector and frame profile,
• 9 a horizontal section through the connected to the threshold frame profile,
• 10 a vertical section "AA" according to 9 before screwing,
• 11 a vertical section as in 10 after screwing.

Best way to carry out the invention

In 1 is a perspective view of a system in the form of an exploded drawing with threshold 1 , which is made of threshold holders 11 and filler core 12 existing threshold connector 10 and the hollow profile extruded as a Z-shaped plastic frame profile 20 shown before assembly. The threshold 1 is designed in a manner known per se in several parts and essentially comprises the threshold basic body 2 , the plastic strip 3 and the sill cover 4 ,

The threshold connector 10 consists essentially of the body 13 forming threshold holder 11 and the filler core 12 , Before mounting, the threshold holder 11 and the filling core 12 is elastically yieldingly connected ("pre-assembled state"). The distance between the bottom of the filler core 12 and the top 14 of the threshold holder 11 is 3.5 mm in the preassembled state.

In the 2 to 6 are various perspective views of the threshold holder 11 and the filler core 12 shown. The filler core 12 is made by injection molding of thermoplastic material, such as ABS, polycarbonate or rigid PVC. A central hole 33 takes the screw during later assembly 8th on.

On the bottom ( 4 ) of the filler core 12 are two spring bars 25 to recognize the one elastically spaced connection between the filling core 12 and the threshold holder 11 enable. The spring bars 25 are integral with the filler core 12 connected. In the embodiment shown here, the spring bars 25 at both ends with the filler core 12 connected, of which on one side via a predetermined breaking point. This ensures that the filling core 12 after putting on the threshold holder 11 initially relatively stiff, but at a distance connected to this. When tightening the screw later 8th breaks this breaking point, leaving the spring bars 25 only one-sided with the filler core 12 are connected and the screw 8th can be easily screwed.

The threshold holder 11 points to its top 14 a variety of centering pins 19 on, in the later assembly in different hollow chambers of the hollow chamber profile 20 engage, rest against the inner walls of these hollow chambers and thus a torsionally rigid connection between the hollow chamber profile 20 and the threshold 1 guarantee. A similar function is also assumed by the two guide pins 27 with respect to a torsionally rigid connection between the threshold holder 11 and the filler core 12 ,

In 7 is the detail "C" of the threshold holder 11 according to 5 shown enlarged. One recognizes on the upper side 14 two locking hooks 28 involved in the pre-assembly of the sleeper connector 10 So when putting on the filler core 12 on top 14 of the threshold holder 11 behind the two undercut bridges 26 ( 9 ) to grab. The length of these snap hooks 28 and the location of the two bridges 26 are designed so that by the spring bars 25 caused distance between the bottom 34 of the filler core 12 and the top 14 of the threshold holder 11 Approximately 3.5 mm and thus the seal 16 not yet compressed in the preassembled state.

The threshold connector 10 is initially mounted on the top for mounting 31 the threshold basic body 2 put on that on the bottom 15 of the threshold holder 11 protruding centering pin 18 ( 6 ) in the holes 6 of the threshold basic body 2 engage and when screwing in the screw 32 in the threshold basic body 2 a sealing pressing of the bottom 15 under compression of the gasket 17 on the threshold base body 2 and in the spinal canal 7 is effected.

At the in 1 illustrated embodiment is additionally a flashover cover 5 used the sill cover 4 in the end of the threshold 1 replaced and the inner rollover 21 ( 8th ) of the hollow chamber profile 20 on the inside 24 closes at the bottom. The flap cover 5 has on its upper side a plurality of centering pins 29 on, during later placement of the hollow chamber profile 20 in hollow chambers of the internal rollover 21 of the hollow chamber profile 20 engage and further increase the torsional stiffness of the connection. The attachment of the flap cover 5 at the threshold 1 done by means of the two screws 9 ,

After attaching the sleeper connector 10 on the threshold base body 2 becomes the hollow chamber profile 20 with its front face so on top 14 set of the pre-assembled threshold connector 10, that at this time still yieldingly spaced with the threshold holder 11 connected filling core 12 completely into the hollow chamber 22 protrudes. The next step is by screwing in the two screws 30 through the wall of the hollow chamber profile 20 in the filler core 12 a firm connection between filler core 12 and hollow chamber profile 20 produced.

Finally, the central screw 8th from the bottom of the threshold base body 2 through the threshold holder 11 in the filler core 12 screwed. Because the filler core 12 with its bottom 34 on the one hand a distance of about 3.5 mm to the top 14 of the threshold holder 11 on the other hand by the screws 30 firmly with the hollow chamber profile 20 is connected when screwing in the screw 8th in the filler core 12 the hollow chamber profile 20 with its front side axially towards the top 14 of the threshold holder 11 pulled and the seal 16 to the corresponding contour of the end face of the hollow chamber profile 20 pressed. Here is the seal 16 compressed and the sealing function produced. After tightening the screw 8th can, must the filler core 12 the top 14 of the threshold holder 11 however do not touch. The original distance of about 3.5 mm to top 14 of the threshold holder 11 Rather, it is designed so that even larger tolerances when inserting the sleeper connector 10 with the filler core 12 in the front side of the hollow chamber profile 20 can be compensated.

In the 9 to 11 is the threshold connection with the threshold connector 10 , the hollow chamber profile 20 and the threshold 1 shown in different sections. In the 9 and 10 is the filler core 12 already with the hollow chamber profile 20 by means of the two screws 30 firmly connected, but still spaced by 3.5 mm with the threshold holder 11 through the out of the locking hooks 28 and the jetties 26 existing locking connection connected. By screwing in the screw 8th becomes the filler core 12 and the permanently connected hollow chamber profile 20 with its front side on top 14 of the threshold holder 11 pulled, causing the seal 16 compressed and the end face of the hollow chamber profile 20 fixed to the top 14 of the threshold holder 11 is pressed. Here are the two spring bars 25 elastically deformed, as in 11 in comparison to 10 can be seen.

In 8th is finally the finished connection between the hollow chamber profile 20 and the threshold 1 in a sloping view from the outside 23 shown. The threshold 1 laterally superior inner rollover 21 is in the installed state - as usual in France in particular - on the inner wall of a building.

LIST OF REFERENCE NUMBERS

1

threshold

2

Emerging body

3

Plastic strip

4

threshold cover

5

Breakdown cover

6

holes

7

spinal canal

8th

screw

9

screw

10

sill connector

11

sill holder

12

filling core

13

body

14

top

15

bottom

16

Seal (top)

17

Seal (underside)

18

Centering pin (underside)

19

Centering pin (top)

20

Hollow chamber profile (frame profile)

21

inner rollover

22

hollow

23

outside

24

inside

25

spring Bars

26

Stege

27

spigot

28

latch hook

29

spigot

30

screw

31

Top (threshold)

32

screw

33

drilling

34

Bottom (filler core)

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 20022411 U1 [0004]
• DE 202007015357 U1 [0005]
• DE 19734876 A1 [0006]
• WO 2015/011092 A1 [0007]

Claims (8)

A threshold connector (10) for connecting a hollow chamber profile (20) having at least one hollow chamber (22) to the upper side (31) of a sleeper (1), comprising at least one threshold holder (11) and a filler core (12) insertable into the hollow chamber, wherein the DB = EPODOC & ... PN = EP0354303 Threshold holder (11) has a seal (16) on its upper side (14) facing the filler core (12), characterized in that the filler core (12) and / or the threshold holder (11) have means which provide a resilient, spaced attachment of the Fill core (12) on the threshold holder (11) effect. Threshold connector (10) according to Claim 1 characterized by means for firmly connecting, in particular screwing, the filling core (12) to the hollow chamber profile (20). Threshold connector (10) according to Claim 1 or 2 , characterized in that the threshold holder (11) on its the threshold (1) facing bottom (15) has a seal (17). Threshold connector (10) according to one of Claims 1 to 3 , characterized in that the filling core (12) consists of plastic. Threshold connector (10) according to one of Claims 1 to 4 , characterized in that the resilient, spaced attachment of the filling core (12) to the threshold holder (11) is made elastic. Threshold connector (10) according to one of Claims 1 to 5 , characterized in that the resilient, spaced attachment of the filler core (12) to the threshold holder (11) has a predetermined breaking point. A system comprising a sleeper (1), a hollow chamber profile (20) and a multi-part sleeper connector according to any one of Claims 1 to 6 , Method for connecting a hollow chamber profile (20) having at least one hollow chamber (22) to the upper side (31) of a sleeper (1) using a sleeper connector (10) comprising a filler core (12) and a sleeper holder (11) according to any one of Claims 1 to 6 method comprising the following steps: a) the filler core (12) is connected to the threshold holder (11) in a yieldingly spaced manner; b) the threshold holder (11) is fixedly connected to the top (31) of the threshold (1); c) the hollow chamber profile (20) is placed on the threshold connector (10) or the filling core (12) is inserted into the hollow chamber (22); d) the filling core (12) is - in particular by a screw (30) - firmly connected to the hollow chamber profile (20); e) by means of at least one screw (8) which is screwed from the underside of the threshold (1) by the threshold holder (11) in the filling core (12), the hollow chamber profile (20) on the top (14) of the threshold holder (11 ) and / or between the hollow chamber profile (20) and the top (14) of the threshold holder (11) arranged seal (16) pressed, wherein the distance between the filling core (12) and threshold holder (11) under compression of the seal (16) reduced, wherein the process steps a) and b) can also be done in reverse order.

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