DE102017003694A1 - Kit for the construction of a substructure for terrace treads - Google Patents

Abstract

The invention relates to a kit for the construction of a substructure for terrace treads, at least consisting of a base strip and means for connecting two baseboards. The kit according to the invention is characterized in that the means for connecting two base strips (10, 10a) comprises a butt joint (40) comprising a depth stop (43) for the frontal connection and a cross connector (60) for connecting two base strips crossing each other in different planes (10, 10a). The invention combines several advantages in itself. On the one hand, the cross connector ensures an angle-accurate cross-connection of two sub-batten strips and, on the other hand, coaxiality of the two profiles is achieved in the end-side butt joint of two subbase strips. Overall, complicated alignments and surveying, since the profiles a correct longitudinal alignment is imposed. It is important that the kit components, base bar, butt joint and cross connector are functionally matched to each other.

Description

The invention relates to a kit for the construction of a substructure for terrace treads, according to the preamble of claim 1.

Terraces are walk-in areas outside a building and are usually located at ground level or on a flat attic floor. The tread of the terrace is arranged on a substructure in order to be spaced from the ground, for example for the purpose of ventilation or to compensate for unevenness of the supporting ground.

From the prior art it is known to build a substructure with wooden or aluminum strips. Larger bumps can be bridged by pedestal bearings on which the baseboards are attached. The construction of the substructure is very time consuming. The bump and crossing area of the substructure strips, in particular for counter battens, has to be paid close attention, taking into account the later surface appearance.

The EP 2 899 411 A1 describes an arrangement for connecting components, in particular two components of a substructure. Two intersecting profiles are screwed together without any further guidance by means of angle, which can lead to an inaccurate grid of the substructure.

The DE 20 2013 010 349 U1 describes a mounting system for terraced construction. The sub-frame described therein has a running in its longitudinal channel, are formed in the thread flanks. These are used to hold screws, which are used to fix terrace clips for fixing the decking on the substructure. The profile bottom has two outwardly directed hook-shaped arms that are not suitable to be placed directly on a substrate, as they either damage this or sink into the ground.

A frontal connection of pipe profiles is often made by the fact that outer collars surround two coaxial tubes to be joined and compress or these are held together by screwing. The outer structure, however, proves to be disturbing.

Furthermore, it is known to introduce a type of adapter in both tubes to extend the longitudinal axis of both profiles with each other. However, the pushed tubes deviate from their longitudinal axis, so that their coaxiality is lost. This in turn has a negative effect on the quality of the substructure in total or increases the effort to build the substructure as a whole.

Accordingly, it is an object of the present invention to provide means by which a high quality substructure can be rationally constructed.

This object is achieved by a kit with the features of claim 1. Further features of the invention are described in the dependent claims.

According to the invention, a kit for the construction of a substructure for patio treads is proposed, at least consisting of a sub-frame and means for connecting two sub-profiles.

The kit according to the invention is distinguished by the fact that the means for connecting two substructure strips are a butt joint comprising a depth stop for the frontal connection and a cross connector for connecting two substructure strips that cross each other in different planes.

The invention combines several advantages in itself. On the one hand, the cross connector ensures an angle-accurate cross-connection of two sub-batten strips and, on the other hand, coaxiality of the two profiles is achieved in the end-side butt joint of two subbase strips. Overall, complicated alignments and surveying, since the profiles a correct longitudinal alignment is imposed. It is important that the kit components, base bar, butt joint and cross connector are functionally matched to each other.

For this purpose, in a particularly advantageous embodiment of the invention, it is provided that the sub-frame is a two-chamber profile formed of two parallel tubes and spaced from one another, which are arranged on a common base plate and the inner walls of the channel have thread flanks, which directly below the Profile crest or a depression located there begin and the threaded end of the bottom plate or the profile bottom is spaced. The common base plate ensures a good support on the ground. The load distribution is particularly favorable by the flat bottom plate, so that neither the ground can be damaged if z. B. the substructure of the terrace is built on the sealing film of a flat roof, still sinking into the ground occurs when the terrace is on a garden area. Particularly advantageous is the arrangement of the thread flanks in the upper portion of the channel. Here you can work with a relatively short screw, which very quickly finds the Schraubansatz, since there is no room for a deflection of the screw. In addition, the sub-frame in this area has a certain flexibility, which allows easy squeezing the gutter walls. The screw will no longer impinge on the bottom of the profile, since the thread is far from there.

In addition, it is provided that the thread is interrupted by an incision and divided into an upper and lower portion. Since the screw re-engages the lower thread, the expansion in the upper area is equalized by the entry into the lower section again by the chambers in the upper section to move back towards each other while the screw is firmly enclosed. At the same time, a reverse rotation lock is used.

The flexibility of the profile is achieved by a further particularly advantageous feature of the invention. In this case, it is provided that each tube of the base strip narrows towards the base plate, so that essentially one mushroom-like cross-sectional profile is formed in each case.

A particularly advantageous embodiment of the invention provides that the butt joint comprises two parallel spaced bars that can be inserted into the chambers of the tubes of the substructure and from the profile cross-section and center distance an end-side coaxial connection of two baseboards emerges, the distance of the two rods through a depth stop in the form of a panel is formed on both sides projecting the bars and not only determines the immersion depth of the butt connector in the tubes of the base strip, but by its support on the front sides of the base strips both a deflection of the base strips themselves and the butt connector the longitudinal axis is prevented. For this purpose, the profile cross section of the depth stop is advantageously congruent to the profile cross section of the substructure. As a result, the depth stop is at the same time a profile termination, so that the penetration of dirt and moisture is prevented in the sub-frame. The support of the depth stop on the profile end walls of the base strips counteracts a horizontal and vertical deflection of the base strips, so that a coaxial alignment of the end-pushed abutment bars is ensured.

The inventively proposed cross connector is characterized in that it comprises a mounting plate, are arranged on the raised guide stops and clamps for receiving and fixing a base bar and the means for twist-proof attachment has on a base bar.

For this purpose, the invention expediently provides that a passage opening is arranged in the disk center, which is suitable for screwing the cross connector to the underlying base rail. Against twisting the cross connector can be secured by the screwing of a further spaced from the first additional screw.

Advantageously, it is provided for this purpose that further through openings distributed radially around the passage openings arranged in the disk center are provided. At least one of these passage openings, the central opening forms a pair of fasteners, which is aligned parallel to the trough profile and each opening is penetrated by a respective screw, which engages in the thread of the channel. Thus, in principle, an angle-faithful, preferably orthogonal arrangement of the intersecting substructure strips is ensured without having to use an angle measuring tool. The cross connector can also be deliberately twisted so that a diagonal grid can be created. Since all cross connectors without angle measurement can be mounted with the corresponding through holes above the gutter of the sub-frame, a rational pre-assembly is always guaranteed.

Further advantages and advantageous embodiments of the invention are the following description, the drawings and claims removed. There are various possibilities for designing and developing the teaching of the present invention in an advantageous manner. For this purpose, on the one hand to refer to the subordinate claims and on the other hand to the following explanation of an embodiment of the invention with reference to the drawings.

Showing:

1 the kit according to the invention in use for two orthogonal in two levels crossing substructure strips in a perspective view,

2 a top view of the situation after 1 .

3 a side view of the situation 1 .

4 a cross-section of the sub-frame,

4a this in 4 detail marked "A" in an enlargement,

5 a perspective view of the butt connector,

5a an enlargement of the bar profile of the butt connector,

6 an end view of the butt connector,

7 a top view of the butt connector,

8th a side view of the butt connector,

9 a side view of the cross connector,

10 a sectional view of the cross connector,

11 a bottom view of the cross connector,

12 a plan view of the cross connector and

13 another opposite the 9 horizontally rotated by 90 ° side view of the cross connector.

Before using the 1 to 3 the function and application of the kit according to the invention is explained, the individual kit components are based on the 4 to 13 described.

The 4 shows a cross section of the sub-frame 10 , This is a double-chamber profile and consists of two parallel and in cross section mirror images of mutually associated tubes 11 . 12 laying on a common floor plate 13 sit and are constantly spaced from each other over their entire length. Each tube is to the bottom plate 13 narrows so that essentially each has a mushroom-like cross-sectional profile. The constrictions are by paragraphs arranged in the foot area 14 . 15 in the side walls 16 . 17 educated. As a result, each tube has 11 . 12 two interconnected hollow chambers 18 . 19 , wherein the upper hollow chamber 18 larger than the underlying hollow chamber 19 , near the bottom plate 13 , The two directly adjacent side walls 17 two tubes 11 and 12 are spaced apart and form a groove 21 , which are parallel with the two tubes 11 . 12 extends over the entire profile length. In the gutter inner wall are thread flanks on both sides 22 formed. The course of the thread flanks is through an incision 23 interrupted, so each one upper section 22o and a lower section 22u (please refer 4a ) is formed. Below the gutter 21 there is another hollow chamber 24 , The transitions and edges of the tubes are preferred with radii 25 formed, wherein the mutually adjacent edges of the profile apex 28 a bevel 26 have, so here in pairwise cooperation of the chamfers a depression 27 is formed for screw heads, not shown here.

The 5 - 8th show the butt connector 40 , This comprises two parallel spaced bars 41 . 41a . 42 . 42a , The distance is through a depth stop 43 formed in the form of a diaphragm. There are two ways to make this butt connector. A first option is in the depth stop 43 to provide two corresponding to the cross-sectional profile of the rods openings and to guide the rods through these openings, the depth stop the rod length halved and there a weld or press connection is completed. Another option is four bars 41 . 41a . 42 . 42a to use and attach them with their front edges on the depth stop, the whole profile can be made in total by a molding process. Regardless of which production method is chosen for this purpose, the depth stop forms the closure or the middle part of the front-side butt joint of two coaxially merged substructure strips. For this purpose has the depth stop 43 a congruent outer contour to the cross-sectional profile of the sub-frame. In order to facilitate insertion of the rods into the tubes of the sub-assembly strip in the case of an accurate cross-section, the end edges of the rods are bevelled 44 Mistake.

The 9 - 13 show a cross connector 60 , This serves to connect in two levels crossing substructure bars. For the construction of a substructure on difficult ground or very differing height ratios, counter battens are often used. This can be used on the one hand as height compensation or on the other hand also be used for reasons of ventilation. The counter battens are the structure close to the ground, while the plane that is usually extending transversely to the counter battens is called battens. In order to properly fasten the underlay bars of the support level on the underlays of the counter level, the invention proposes a cross connector 60 in front. This consists of a mounting plate 61 which has a substantially circular cross section with a wavy edge 62 has. On the mounting plate 61 each raise two leadership stops 63 or terminals 64 , The guide stops 63 are V-shaped eyelets while the clamps 64 elastic hook arms 69 carry that to the disk center 65 are aligned. In the disk center 65 there is a passage opening 66 with a sink 67 , Radially around the centric passage opening 66 are near the plate edge further through openings 66a - 66j the same geometry distributed. Two larger panel windows 68 serve the material saving, making the disk center 65 is designed as a hub.

The 1 - 3 show a section of a substructure. From the underbody bars 10 . 10a a grid is created that extends over the later terrace tread. The number of substructure strips used depends on the required spans and support points. Depending on which underground the terrace is created, different surface qualities are encountered. These can be both relatively flat flat roofs and uneven lawns. The substructure not only creates a support structure for the terrace tread, but also compensates height differences and creates a controlled slope. Usually, as shown here, a substructure is provided with a counter battens. Such substructures consist of two levels. Above a level close to the subsurface of substructure strips 10 is a level above it from Unterbauleisten 10a arranged, which traverse the underlying substructure strips usually at right angles. The present underbody bars 10 . 10a are made of aluminum material. The rod length is usually limited to four meters. If the terrace area to be built has larger dimensions, the substructure strips must be pushed frontally. Such frontal impacts were previously weak in stability. The present invention solves this through a butt connector 40 , the exact coaxiality of two frontally connected substructure strips 10 ensures. The butt connector 40 will with his two bars 41 . 42 respectively. 41a and 42a in the hollow chambers 18 / 19 the tubes 11 . 12 the first sub-frame 10 plugged in. The insertion length is limited by the depth stop 43 , This closes the tubes 11 . 12 the underbody bar 10 , On the freely protruding adjacent bars 41a . 42a becomes the underbody bar to be pushed to the front 10 deferred until this too on the depth stop 43 seated. Although the butt connector and the baseboard are geometrically coordinated so that a well-fitting connector is possible, both profiles should be fixed by a laterally penetrating into the basement wall screw screw in position.

The further technical problem is the exact angle connection of the substructure strips from the upper level with the lower levels of the lower level. Usually, a substructure is constructed with a grid of rectangular crossing substructure strips. The angular accuracy is achieved by the cross connector 60 specified. This one becomes with its disk center 65 ( 12 ) over the gutter 21 the underbody bar 10 Aligned to the lower level, that's the three in-line passages 66 . 66c and 66h over the gutter 21 extend. After screwing the cross connector with the sub-frame 10 with at least two screws, the cross connector can no longer be twisted. If it is desired from a design point of view to choose a diagonal course of the terrace tread, this can be done with the present invention without further aids and otherwise elaborate marking measures by the cross connector is rotated about its disk center and, for example, the through holes 66 . 66b and 66g over the gutter 21 run. If the underbody bars 10 the lower level with the cross connectors 60 is preassembled, the Unterbauleisten 10a the upper level in the terminals 64 clipped or at the guide stops 63 screwed.

LIST OF REFERENCE NUMBERS

10

base bar

10a

base bar

11

first tube of 10

12

second tube of 10

13

Bottom plate of 10

14

Sales of 11 / 12

15

Sales of 11 / 12

16

Sidewall of 11 / 12

17

Sidewall of 11 / 12

18

Hollow chamber of 11 / 12

19

Hollow chamber of 11 / 12

21

Gutter between 11 and 12

22

thread flanks 21

22o

upper section of 22

22u

lower section of 22

23

Nick of 22

24

Hollow chamber below 21

25

radii

26

bevel

27

depression

28

profile apex

40

butt connectors

41

Staff of 40

41a

Staff of 40

42

Staff of 40

42a

Staff of 40

43

Depth stop / shutter

44

Bevel on 41 . 41a . 42 . 42a

60

cross connector

61

Mounting plate of 60

62

wavy edge of 61

63

Guide stop on 61

64

Clamp up 61

65

plate center

69

elastic hook arms of 64

66

centric passage opening

66a-j

radial passage openings

67

Depression of 66 . 66a j

68

plate window

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

• EP 2899411 A1 [0004]
• DE 202013010349 U1 [0005]

Claims (10)

Kit for constructing a substructure for terrace treads, at least consisting of sub-construction strips and means for connecting two sub-construction strips, characterized in that the means for connecting two sub-construction strips ( 10 . 10a ) a depth stop ( 43 ) comprehensive butt connector ( 40 ) to the frontal connection and a cross connector ( 60 ) for connecting two substructure strips crossing in different planes ( 10 . 10a ) are. Kit according to claim 1, characterized in that the substructure ( 10 . 10a ) one of two parallel and including a gutter ( 21 ) spaced apart tubes ( 11 . 12 ) formed double-chamber profile, which on a common bottom plate ( 13 ) are arranged and the inner walls of the channel ( 21 ) Thread flanks ( 22 ), which directly below the profile crest ( 28 ) or a depression located there ( 27 ) and the threaded end of the bottom plate ( 13 ) or the bottom of the profile is spaced. Kit according to claim 2, characterized in that the thread ( 22 ) through an incision ( 23 ) and into an upper section ( 22o ) and a lower section ( 22u ) is divided. Kit according to claims 1-3, characterized in that each tube ( 11 . 12 ) to the bottom plate ( 13 ) narrows, so that essentially a mushroom-like cross-sectional profile is formed in each case. Kit according to claims 1-4, characterized in that the butt connector ( 40 ) two parallel spaced rods ( 41 . 41a ; 42 . 42a ), which in the hollow chambers ( 18 . 19 ) of the tubes ( 11 . 12 ) of the substructure ( 10 . 10a ) and whose profile cross-section and center distance form a frontal coaxial connection of two substructure strips ( 10 . 10a ), the distance between two bars ( 41 . 41a ; 42 . 42a ) by a depth stop ( 43 ) is formed in the form of a diaphragm, on both sides of the bars ( 41 . 41a ; 42 . 42a protrude). Kit according to claim 5, characterized in that the profile cross section of the depth stop ( 43 ) is congruent to the profile cross-section of the sub-frame ( 10 . 10a ). Kit according to at least one of the preceding claims, characterized in that the cross connector ( 60 ) a mounting plate ( 61 ) on the raised guide stops ( 63 ) and terminals ( 64 ) for receiving and fixing a sub-frame ( 10 . 10a ) are arranged and the cross connector ( 60 ) Means for twist-proof mounting on a sub-frame ( 10 . 10a ) owns. Kit according to claim 7, characterized in that the means for attachment to a base ( 10 . 10a ) at least one in the disk center ( 65 ) arranged passage opening ( 66 ) is to receive a screw. Kit according to claim 8, characterized in that further radially around the in the disk center ( 65 ) arranged passage opening ( 66 ) distributed passage openings ( 66a - 66j ) are provided. Kit according to claim 9, characterized in that at least two passage openings ( 66 and 66a ) a fixation pair for mounting on the sub-frame ( 10 . 10a ) form.

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