EP3363953A1 - Holder for a distance rod and panel for a formwork and/or isolation of a strip foundation with such a support - Google Patents

Abstract

A holder (100) for a spacer bar (300) and a plate (400) for a formwork and / or insulation of a strip foundation are described. The holder (100) is designed for mounting on the plate (400) and comprises a receptacle (140) for the spacer bar (300), which is designed so that a bar end (310) of the spacer bar (300) in an insertion direction (E ) perpendicular to a rod axis (N) of the spacer bar (300) can be introduced into the receptacle (140) up to an end position (E). The receptacle comprises at least one clamping element (130) and a counter element (135), which jam the rod end (310) in the end position (E). The clamping element (130) is deflectable about an axis perpendicular to the insertion direction (E) so that the rod end (310) can be inserted into the end position (EP).

The holder allows, for a desired plate spacing any, verklemmbare in the holder spacer element, for example, a Moni iron to use.

Description

The present invention relates to a holder for a spacer bar and plate for a formwork and / or insulation of a strip foundation with such a holder.

To create a formwork for a strip foundation plates are arranged in a trench parallel to each other. These boards are often designed as permanent formwork made of Styrodur / hard foam, which has an insulating effect on the finished strip foundation.

In order for the panels to withstand the pressure created by the casting of the strip foundation, the portion of the trench lying outside the panels must be refilled and compacted prior to casting. This can cause high pressure on the plates.

In order that the plates in turn do not change their spacing from each other, in particular reduce, systems are used for Abstandungs wars between parallel plates for a formwork and / or insulation of a strip foundation. The system is exposed to the resulting from the compression high pressure.

Such systems commonly include holders on, or for mounting on, the plates. Between the plates, an associated connecting element can be arranged by being inserted into the holders and locked with them. Examples of such systems are in DE 20 2008 013 996 U1 . DE 10 2014 106 068 A1 and DE 10 2012 219 997 A1 known.

The width of the respective strip foundation, which can be created with these systems, is predetermined by a length of the respectively associated connecting element.

invention

The present invention is concerned with the object of improving holders for distance bars to the extent that the width of the strip foundation can be easily varied with the holder and are designed for spacer bars that can withstand high pressure. The present invention proposes a holder according to claim 1.

The holder is designed for a spacer bar and for mounting on a plate for a formwork and / or insulation of a strip foundation. The holder includes a A receptacle for the spacer bar, which is formed so that a rod end of the spacer bar can be inserted in an insertion direction perpendicular to a rod axis of the spacer bar in the receptacle to an end position. The holder is characterized in that the receptacle comprises at least one clamping element and a counter element, which clamp the rod end in the end position, wherein the clamping element is deflectable about an axis perpendicular to the insertion direction so that the rod end can be inserted into the end position.

The holder allows to use any, clamped in the holder spacer rod as a spacer for a desired plate spacing.

In a preferred embodiment, the counter element and the clamping element define a constriction that can be expanded by deflection of the clamping element so far that the rod end can be inserted into the end position, wherein when the rod end is in the end position, the bottleneck is narrowed so far again that the bar end is jammed.

So the distance bar can be easily jammed.

The clamping element may be a tab having at least three sections, wherein the first section may be connected to the rest of the holder and formed parallel to the insertion direction, the second section adjoining the first section in the direction of the counter element and the third section adjoining the second section opposite to the direction of the counter element can connect kinking.

So the spacer bar can be easily inserted.

The counter element can be designed mirror-symmetrically to the clamping element.

So the distance bar can be introduced even easier.

The counter element may be deflectable about a further axis which is parallel to the axis, opposite to the clamping element.

So the distance bar can be even more easily jammed.

By means of the third sections of the clamping element and of the counter-element, a catching basket projecting perpendicular to the insertion direction and opening in the opposite direction to the insertion direction can be formed.

The holder may comprise ribs extending perpendicular to the insertion direction. The ribs can form a rib structure open on both sides. The ribs may also form a rib structure open only on one side.

This allows the holder to fill with concrete during casting of the strip foundation, so that the holder does not compromise the stability of the strip foundation.

The holder may further include a reinforcing member to which the rod end in the end position connects perpendicular to the insertion direction, wherein at least a part of the ribs extending radially from the reinforcing member. In another embodiment, the holder comprises pressure wings, which increase the base surface of the holder on the plate side relative to a base surface of the receptacle.

As a result, the holder can absorb the pressure exerted on the spacer bar particularly well.

The receptacle may further comprise a stop element against which the bar end strikes in the end position in the insertion direction.

The stop element can be undercut or recessed on the holder side. As a result, a spacer bar, which has a skip over the bar end, can be clamped securely in the holder.

The holder may further comprise a through hole for a screw, wherein the through hole is arranged so that it is accessible when the spacer bar is jammed.

The receptacle may be formed on a first side of the holder. The holder may further comprise at least one fixing mandrel on a mounting side opposite the first side, wherein the fixing mandrel may extend perpendicular to the insertion direction.

According to the invention, a plate according to claim 12 is further proposed for a formwork and / or insulation of a strip foundation. At least one inventive holder is mounted on the plate.

• Figur 1 ein System zur Abstandswahrung zwischen parallelen Platten gemäß einem Ausführungsbeispiel der Erfindung;
• Figur 2 ein Halter gemäß einem Ausführungsbeispiel der Erfindung von vorne;
• Figur 3 eine perspektivische Ansicht des Halters aus Figur 2 von hinten;
• Figur 4 eine perspektivische Ansicht des Halters aus Figur 2 von vorne;
• Figur 5 den Halter aus Figur 2 mit verklemmtem Abstandstab von oben;
• Figur 6 den Halter aus Figur 2 mit verklemmtem Abstandstab von unten;
• Figur 7 den Halter aus Figur 2 mit verklemmtem Abstandstab von einer Seite;
• Figur 8 eine Platte für eine Schalung und/oder Isolierung eines Streifenfundaments gemäß einem Ausführungsbeispiel der Erfindung; und
• Figur 9 einen Halter gemäß einem Ausführungsbeispiel mit verklemmtem Abstandstab von der Seite.

The above-described characteristics, features, and advantages of this invention, as well as the manner in which they will be achieved, will become clearer and more clearly understood in connection with the following description of the embodiments, which will be described in detail in conjunction with the drawings. Show it:

• FIG. 1 a system for spacing between parallel plates according to an embodiment of the invention;
• FIG. 2 a holder according to an embodiment of the invention from the front;
• FIG. 3 a perspective view of the holder FIG. 2 from the back;
• FIG. 4 a perspective view of the holder FIG. 2 from the front;
• FIG. 5 the holder off FIG. 2 with jammed spacer bar from above;
• FIG. 6 the holder off FIG. 2 with jammed spacer bar from below;
• FIG. 7 the holder off FIG. 2 with jammed spacer bar from one side;
• FIG. 8 a board for a formwork and / or insulation of a strip foundation according to an embodiment of the invention; and
• FIG. 9 a holder according to an embodiment with jammed distance bar from the side.

FIG. 1 shows a system for spacing between parallel plates according to an embodiment of the invention in an application example. In a trench, insulating plates 400 are placed parallel to each other so that surface normals of the plates 400 are horizontally aligned. The insulating plates 400 constitute a permanent formwork for a strip foundation. The spacing between the plates 400 is maintained by a system comprising holders 100 connected to the plates 400.

FIGS. 2 to 4 show various views of a holder according to the embodiment of the invention. The holders 100 each comprise a mounting side 110 with which the holder 100 can be mounted on one of the plates 400. Opposite the mounting side 110 is a front side 120 of the holder 100. On the front side 120, a clamping element 130 and a counter element 135 are arranged. Clamping element 130 and counter element 135 form a receptacle for a bar end 310 of a spacer bar 300. Between the clamping element 130 and the counter element 135, the bar end 310 can be clamped in an end position EP. FIGS. 5 to 7 show various views of a holder according to the embodiment of the invention with clamped spacer rod.

The clamping element 135 is in the exemplary embodiment about an axis parallel to the surface normal of the plate 400 deflected. It defines a bottleneck ES in a normal position together with the counter element 135. The constriction ES is expandable by deflection of the clamping element 130. The deflection can be achieved by inserting the rod end 310s along an insertion direction E. The rod axis N is aligned perpendicular to the insertion direction E and parallel to the surface normal. When the rod end 310 is in the end position EP, it deflects the clamping element 130 only partially. The constriction ES is then narrower than a diameter of the spacer rod 300 and the clamping member 130 presses against the rod end 310, whereby the spacer rod 300 is non-positively connected to the holder 100.

Thus, different spacer bars can be used with different rod cross sections as for spacing, provided that the diameter of the spacer bar is in a predetermined by the geometry of the clamping element and the counter element diameter range.

In the illustrated embodiment, the clamping member 130 is formed as a tab with three sections. A first portion 131 is connected to the rest of the holder and formed parallel to the insertion direction. A second portion 132 connects to the first portion in the direction of the counter element kinking. A third section 133 abuts the second section 132 opposite to the direction of the mating member 135, kinking. However, in other embodiments of the invention, the clamping element may also have a different shape.

The counter element 135 is formed mirror-symmetrically to the clamping element 130 in the illustrated embodiment. However, in other embodiments of the invention, the counter element may also have a different shape.

The counter element 135 is in the illustrated embodiment, in addition to another, parallel to the axis axis opposite to the clamping element 130 deflected. In other embodiments of the invention, however, the counter element is designed not deflectable.

In the exemplary embodiment illustrated, the third sections 134 of the clamping element 130 and of the counter element 135 form a collecting basket 140 which projects perpendicularly to the insertion direction E and opens counter to the insertion direction E.

In the exemplary embodiment, the holder 100 comprises ribs 150 extending perpendicular to the insertion direction E. The ribs 150 in the example form a rib structure open on both sides. This allows the holder to fill with concrete during casting of the strip foundation, so that the holder does not compromise the stability of the strip foundation. In other embodiments of the invention, the holder is formed without ribs or with a partially or completely closed rib structure.

In the exemplary embodiment, the holder 100 comprises a reinforcing element, to which the bar end 310 in the end position EP connects perpendicular to the insertion direction E. A part of the ribs 150 extends radially from the reinforcing element. As a result, the holder pressure, which is exerted on the spacer bar on the holder, transferred particularly well to the plate. In order to further improve this, the holder 100 in the exemplary embodiment comprises pressure wings 180 which increase the base area of the holder 100 on the plate side relative to a base surface of the receptacle.

In the exemplary embodiment, the receptacle comprises a stop element 155 against which the bar end 310 strikes in the insertion direction E in the end position EP.

The holder 100 in the exemplary embodiment further comprises a through opening 160 for a screw 500, the through opening 160 being arranged so that it is accessible when the spacer bar 400 is clamped in the end position EP.

The holder 100 further comprises in the exemplary embodiment fixing mandrels 111 on the mounting side, wherein the fixing mandrels 111 extend perpendicular to the insertion direction.

With the screw passed through the through hole and screwed into the plate, the fixing pins are pressed into the plate and the holder with only one screw fixed against rotation on the plate. In other embodiments of the invention, the holder is formed without fixing mandrels or with only one fixing mandrel.

In the exemplary embodiment, the holder 100 comprises an adjusting collar 170. This allows the holder to be easily mounted, for example, on positions pre-marked on the plate.

An embodiment of the invention relates to a plate 400, are mounted on the holder 100. This is exemplary in FIG. 8 shown. The plate of length L and height H comprises in three horizontal rows holders 100, which are arranged in the rows equidistant with distance D. The rows are also equidistant to each other. Holders 100 in adjacent rows are offset from one another by half a distance D between horizontally adjacent retainers 100.

An embodiment of the invention comprises a stop element 155, which protrudes undercut from the front side 120 of the holder 100, that is recessed on a side facing the holder 100. As a result, a spacer bar 300, which has a skip over the bar end, can be clamped securely in the holder. This is exemplary in FIG. 9 shown.

LIST OF REFERENCE NUMBERS

100

holder

110

mounting side

111

locking pin

120

front

130

clamping element

131

first section

132

second part

133

third section

135

counter-element

140

Intake, catcher

150

ribs

155

stop element

160

Through opening

170

Justierkimme

180

pressure wings

300

spacer bar

310

rod end

400

plate

500

screw

e

insertion

N

Direction perpendicular E, direction of the rod axis

EP

end position

IT

bottleneck

D

horizontal distance between two holders on a plate

H

Height of the plate

L

Length of the plate

Claims (14)

A spacer bar holder (100), wherein the holder (100) is adapted to be mounted on a board (400) for forming and / or insulating a strip foundation, comprising a spacer rod receptacle (300) adapted to receive a rod end (310) of the spacer rod (300) in an insertion direction (E) perpendicular to a rod axis (N) of the spacer rod (300) can be inserted into the receptacle up to an end position (EP),
characterized in that the receptacle (140) comprises at least one clamping element (130) (130) and a counter element (135) clamping the bar end (310) in the end position (EP), the clamping element (130) being vertical about an axis to the insertion direction (E) is deflectable so that the rod end (310) can be inserted into the final position (EP). Holder (100) according to claim 1, wherein the counter element (135) and the clamping element (130) define a constriction (ES), which by expansion of the clamping element (130) is expandable so far that the rod end (310) in the end position (EP ), wherein, when the bar end (310) is in the end position (EP), the constriction (ES) is narrowed again so far that the bar end (310) is jammed. A holder (100) according to claim 1 or 2, wherein the clamping member (130) is a tab having at least a first, a second and a third portion (131, 132, 133), the first portion (131) being connected to the remaining holder (13). 100) and parallel to the insertion direction (E) is formed, the second portion (132) adjoining the first portion in the direction of the counter element (135) kinking connects and the third portion (133) to the second portion (132) opposite to the Direction of the counter element (135) adjoins kinking. Holder (100) according to one of the preceding claims, wherein the counter element (135) is formed mirror-symmetrically to the clamping element (130). Holder (100) according to claim 4, wherein the counter element (135) about a further, parallel to the axis axis opposite to the clamping element (130) is deflectable. A holder (100) according to claim 3, wherein the holder (100) is further formed according to claim 4 or 5, wherein the third portions (133) of the clamping element (130) and the counter-element (135) is formed a catching basket (140) projecting perpendicularly to the insertion direction (E) and opening counter to the insertion direction (E). Holder (100) according to one of the preceding claims, wherein the holder (100) comprises ribs (150) extending perpendicularly to the insertion direction and forming a rib structure open on both sides. The holder (100) according to claim 7, further comprising a reinforcing member to which the rod end (310) connects in the end position perpendicular to the insertion direction (E), at least part of the ribs (150) extending radially from the reinforcing member. Holder (100) according to one of the preceding claims, wherein the receptacle (140) further comprises a stop member (155) against which the rod end (310) in the end position (EP) abuts in the insertion direction (E). Holder (100) according to claim 9, wherein the receptacle is recessed on the holder side. A holder (100) according to any one of the preceding claims, wherein the holder (100) further comprises a through hole (160) for a screw (500), the through hole (160) being arranged to be accessible when the spacer bar (300) is stuck. A holder (100) according to any one of the preceding claims, wherein the receptacle is formed on a first side of the holder (100) and wherein the holder (100) further comprises at least one fixing mandrel (111) on a mounting side (110) opposite the first side. wherein the fixing mandrel (111) extends perpendicular to the insertion direction (E). Holder (100) according to one of the preceding claims, wherein the holder (100) comprises pressure wings, which increase the base surface of the holder (100) on the plate side relative to a base surface of the receptacle. A panel (400) for shuttering and / or insulating a strip foundation, wherein at least one holder (100) according to any one of the preceding claims is mounted on the plate (400).

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