EP3543430A1 - Positioning apparatus and method for producing a reinforced construction element - Google Patents

Abstract

The invention relates to a positioning device (20) and a method for using the positioning device (20) when producing a building material body from a building material (B). The positioning device (20) is adapted to hold a preferably made of a textile reinforcement reinforcing body (21) and to arrange and align by means of the positioning device (20) inside a formwork (22). For this purpose, the positioning device on a first holding part group (29) and a second holding part group (30), which are arranged on a base body (27). At least one of the two holding sub-groups (29, 30) is movable between a holding position (I) and a release position (II), for example by a linear movement and / or a pivoting movement. In the holding position (I), each holding part (31) engages on a respectively assigned engagement point (56) on the reinforcing body (21). In the release position (II) the distance of the holding parts (31) to each other is different from the distance of the engagement points (56) on the reinforcing body (21), so that the positioning device (20) with the reinforcing body (21) engaged or from the reinforcing body (21 ) can be removed. In the release position (II) an independent handling of the positioning device (20) relative to the reinforcing body (21) is made possible. For switching between the holding position (I) and the release position (II) is a manually operable and / or automatically actuated actuator (46) is present.

Description

The invention relates to a positioning device and a method for producing a provided with a reinforcement building material body using the positioning device.

For introducing a reinforcing body in a building material body nowadays spacers are arranged on the reinforcement before the reinforcing body is inserted into a formwork. The spacers specify the distance of the reinforcement to an inner surface of the formwork. Subsequently, flowable building material, such as concrete or mortar, filled in the formwork, so that the reinforcement is covered. After curing, the building material body can be turned off. A disadvantage of this method is that the spacers are visible on the visible side of the building material body, since they rest at these points inside the formwork and no building material between the formwork and the spacers can penetrate.

It can therefore be regarded as an object of the present invention to allow easy positioning of a reinforcing body in a formwork without affecting the visible side of the manufactured building material body.

This object is achieved by means of a positioning device according to claim 1 and by means of a method according to claim 17.

The positioning device according to the invention is set up to position a reinforcing element having intersecting reinforcing elements in a formwork. The reinforcing body may be formed, for example, as a reinforcing grid, which extends substantially in one plane.

Preferably, the reinforcing body is designed as a textile reinforcement and has fiber bundles, wherein the fibers of a fiber bundle are connected by a matrix, in particular of plastic or mineral material. The reinforcing body is preferably free of metallic components.

The positioning device has a base body on which a first holding part group and a second holding part group are arranged. The two holding subgroups are arranged in a first spatial direction at a distance from each other. Each holding part group has at least one holding part. If a holding part group has a plurality of holding parts, these are arranged at a distance from one another, in particular in a second spatial direction perpendicular to the first spatial direction. The at least one holding part of the first holding part group is movably mounted such that it can be moved by the actuation by means of an actuating device between a holding position and a release position. The movement may be a linear movement and / or pivoting movement. Preferably, the distance of the holding part of the first holding part group from the at least one holding part of the second holding part group in the holding position greater than in the release position.

The holding parts of the first and second holding part group are adapted to attack in the holding position in each case at an associated point of attack on one of the reinforcing elements of the reinforcing body. As a result, the reinforcing body is held on the holding elements and can be moved, arranged and / or aligned together with the positioning device. For example, the positioning device can be arranged by suitable means on the formwork, so that the reinforcing body is arranged in the desired position and orientation within the formwork.

In the release position of the at least one holding part of the first holding part group of the reinforcing body is released by the holding parts. In the release position, the handling of the positioning device is possible without influencing the position and orientation of the reinforcement body. Therefore, the positioning can be removed in the release position of the first holding part group from the reinforcing body or connected to the reinforcing body.

The positioning device therefore offers an easy way to arrange a reinforcing body within the formwork without the use of spacers. In particular, at the later visible side of the building material body associated shuttering inner surface are no spacers or parts of the reinforcement body. The holding parts or the holding sub-groups are located in the region of the upwardly open side of the formwork and protrude, for example, from a filled in the form flowable building material upwards. By moving at least the first holding part group in the release position, the positioning can be removed before the curing of the building material. The position of the reinforcement body is maintained. Alternatively, the holding elements may each have a predetermined breaking point and be severed after curing of the building material at the predetermined breaking point. Then we removed the positioning after curing of the building material. The visible from the outside holding parts are then on the opposite side of the visible side of the building material body produced and do not affect the appearance of the visible side.

It is advantageous if the holding parts of the first and the second holding part group are adapted to generate a tensile force on the reinforcing body in the holding position between the points of attack. As a result, in particular, a textile reinforcement body can be held in an extended position. By a switching movement of at least the first holding part group in the release position, this tensile force can be reduced.

Preferably, the holding parts of both holding part groups are arranged such that the points of attack are in the holding position in a common plane.

On the base body, a support surface is preferably provided, which is adapted to be placed on top of a formwork. For example, the base body may have one or more rod-shaped parts whose dimensions are sufficiently large that the base body can be placed on the edge of an upwardly open formwork.

It is also advantageous if the common plane in which the holding parts of the two holding part groups are in the holding position, is aligned in a predetermined orientation or orientation relative to the support surface. For example, the common plane can be aligned parallel to the support surface. As a result, for example, a reinforcing element formed by a reinforcing grid can be positioned very simply parallel to the support surface and, for example, horizontally in the formwork. Alternatively, it is also possible, for example, to align a reinforcing grid in a defined inclination relative to the horizontal in the formwork. For this purpose, for example, the holding parts of a holding part group with respect to the holding parts of the other holding part group can be arranged at different distances to the support surface very simply.

In a preferred embodiment adjusting means are provided which are adapted to adjust the distance between the holding parts and the support surface. As a result, the positioning device can be flexibly adapted to different purposes.

In one embodiment, the holding parts of the second holding part group can be immovably arranged by the actuating device on the base body. Regardless of the actuation of the actuator when switching between the holding position and the release position, the holding parts of the second holding part group remain unchanged relative to the base body. This simplifies the structural design of the positioning device.

In another embodiment, the holding parts of both holding sub-groups can be movably supported by the actuating device on the base body. When switching from the holding position to the release position, therefore, the holding parts of both holding subgroups move relative to the base body. In this embodiment, the removal of the positioning of the reinforcing body, without changing its position in the building material, can be simplified.

It is advantageous if the positioning device has a pretensioning device. The biasing means is adapted to bias the holding parts, which are movable by the actuating device, in the holding position. In the unactuated state of the actuator, the holding parts therefore take the holding position. By actuating the actuating device, the holding parts are moved counter to a biasing force generated by the biasing device in the release position.

The holding position is preferably defined by a stop which is associated with the first holding part group. Optionally, the release position can be defined by one of the first holding part group associated stop.

It is also advantageous if several or all holding parts of a common first holding part group are arranged on a common carrier. The carrier in turn is movable by the actuator. The carrier with the holding parts is therefore movably mounted on the base body.

The actuator may be a handle for have manual actuation. Additionally or alternatively, the actuating device may also have a motor-driven drive part. By means of a drive part which can be driven by a motor, an automated switching between the holding position and the release position can take place.

In order to be able to position larger reinforcing bodies, the positioning device can each have a plurality of first holding subgroups and a plurality of second holding subgroups. Preferably, a first holding part group and a second holding part group form a pair, respectively. The number of such pairs can be selected depending on the reinforcing body to be positioned.

In one embodiment, each retaining element may have a predetermined breaking point. This embodiment is advantageous if the positioning device remains on the formwork, as long as the building material hardens. The holding parts are then fixed in the building material and are cut to remove the positioning device at the predetermined breaking point.

In one embodiment, the holding parts are formed by hooks. The hooks of the first holding subgroup and the hooks of the associated second holding subgroup are opened on the sides facing away from each other and closed on the mutually facing sides.

By means of any of the above-described embodiments of the positioning device, a building material body can be produced as follows:

First, the at least one holding part of first holding subgroup moved by means of the actuating device in the release position. Subsequently, the holding parts are arranged adjacent to or at the respective point of attack on the reinforcing body and the holding parts of the first holding part group are moved to the holding position. In this position, the reinforcing body is held by the holding parts on the positioning device and can be handled together with the positioning device.

The positioning device is arranged on the formwork. For example, the positioning device can be placed with a support surface of the base body at the edge of the formwork. The reinforcing body is then arranged in the formwork, preferably without having direct contact with an inner wall of the formwork. At least at the later visible side of the building material body to be produced associated inner surface of the formwork Subsequently, a flowable building material is filled into the formwork. As a building material, for example, a mortar or a concrete can be used. The building material is cured in the formwork to produce the building material body.

In a variant of the method, the positioning device can be removed before curing of the building material. For this purpose, the at least one holding part of the first holding part group is moved by means of the actuating device in the release position. The holding parts release the reinforcement body and the positioning device can be removed. The reinforcing body, in particular a textile reinforcement body, remains in the desired position and orientation in the still-hardening building material within the formwork.

Alternatively, the positioning can remain on the formwork until the building material is cured. The holding parts are then severed, preferably at a respective predetermined breaking point, and the positioning device can subsequently be removed. In this variant of the method, the retaining elements are preferably made of plastic.

Advantageous embodiments of the method will become apparent from the dependent claims, the description and the drawings. Hereinafter, preferred embodiments of the invention will be explained in detail with reference to the accompanying drawings. Show it:

FIG. 1 a schematic side view of an embodiment of a positioning device,

FIG. 2 a schematic plan view of a reinforcing body in the form of a reinforcing grid,

FIG. 3 a plan view of the by the positioning of FIG. 1 held reinforcing grid FIG. 2 .

FIGS. 4 to 7 each a schematic, partially sectioned side view of different stages in positioning the reinforcing grid of the FIGS. 2 and 3 by means of the positioning device FIG. 1 in a formwork when producing a building material body,

FIG. 8 a schematic side view of a modified embodiment of a positioning and a cut formwork in the manufacture of a Building material body,

FIG. 9 a schematic side view of an embodiment of a positioning device in which a plurality of grid body can be held adjacent to each other,

FIG. 10 An embodiment of a positioning device in a schematic plan view, which can exert tensile forces on the reinforcing body in two spatial directions,

FIG. 11 a schematic representation of adjusting means for adjusting a holding part of a positioning device,

FIG. 12 An embodiment of a holding part for the positioning device with a predetermined breaking point,

FIG. 13 a schematic, enlarged view of the predetermined breaking point FIG. 12 .

FIGS. 14 and 15 each schematic representations of embodiments of the positioning device, which is set up for automatic or motorized operation.

In FIG. 1 an embodiment of a positioning device 20 is illustrated. The positioning device 20 is adapted to a reinforcing body 21 (FIG. FIG. 2 ), and hold and align together with the positioning device 20, for example, on a formwork 22 (see Figures 4- 7 ).

The reinforcing body 21 has a plurality of mutually interconnected, intersecting reinforcing elements 23. The reinforcing elements 22 are formed by a respective fiber bundle of a plurality of fibers (so-called rovings), which are arranged in a plastic matrix or mineral matrix. As a result of the hardening of the matrix, the reinforcing elements 23 form rods which, above all, can absorb a tensile force in order to reinforce a building material body to be produced. The reinforcing elements 23 are connected to each other at connecting or crossing points and thereby form the reinforcing body 21.

In the embodiment shown here, the reinforcing body 21 is a reinforcing grid extending substantially in one plane, which may also be referred to as a reinforcing mat. In a modification to this, other arbitrary two-dimensional or three-dimensional reinforcement structures can be realized, so that the reinforcement body 21 can have any desired shape. In principle, it can assume any shape which can be produced by means of the reinforcing elements 23.

The reinforcing body 21 is formed according to the example as a textile reinforcement body and free of metallic parts. In the illustration, the individual fibers bundled into the textile matrix each extend in a straight line in a single spatial direction. Depending on the shape of the reinforcing body 21, the fiber bundles could also extend in sections in a straight line with bending or bending points arranged therebetween.

The reinforcing body 21 must be positioned and aligned within the formwork 22 so that it can be separated from a building material B (FIG. Figures 4-7 ) and thereby assume the predetermined position and orientation in the building material body to be produced. For the arrangement of the reinforcing body 21 so far spacers are used, which are attached to the reinforcing body 21 and support it in the desired position and orientation within the formwork 22. By using the positioning device 20 can be dispensed with spacers for positioning the reinforcing body 21 within the formwork 22.

The positioning device 20 has a base body 27. By way of example, the base body has on an underside a support surface 28 which is adapted to the formwork 22 and - as in the example Figures 4-7 is illustrated - to be placed on an upper edge of the formwork 22. The bearing surface 28 may be divided on the base body 27 into a plurality of separate surface sections. In the exemplary embodiment, the base body 27 extends in a first spatial direction, which is referred to as the longitudinal direction L, and has at its opposite Längsendbereichen in each case a portion of the support surface 28. Each section of the support surface is associated with a front side of a wall of the formwork 22.

By way of example, the base body 27 is rod-shaped and preferably has a flat underside or underside extending in a plane for forming the support surface 28. For example, the rod-shaped base body 27 may have a polygonal and in particular rectangular cross-section.

On the base body 27 of the positioning device 20 at least two holding part groups 29, 30 are arranged, each with at least one holding part 31. In the first embodiment of the positioning device 20 according to the Figures 1-7 exactly one first holding part group 29 and exactly one second holding part group 30 is present. As will be explained on the basis of other exemplary embodiments, a plurality of first holding sub-groups 29 and a plurality of second holding sub-groups 30 may also be present, in particular a plurality of pairs each having exactly one first and one second holding subgroup 29, 30. The first holding subgroup 29 and the second holding subgroup 30 are shown in FIG Longitudinal direction L at a distance from each other on the base body 27 is arranged.

In the first exemplary embodiment of the positioning device 20, both holding subgroups 29, 30 each have a plurality of holding parts 31 according to the example. Preferably, the holding parts 31 of the same holding subgroup 29 or 30 are oriented at right angles to the longitudinal direction L in a second spatial direction, which is referred to as transverse direction Q, at a distance from each other and arranged according to the example in alignment. The distances between the holding subgroups 29, 30 in the longitudinal direction L and / or the number and the distances of the holding parts 31 of a single holding subgroup 29 or 30 are defined depending on the dimension of the reinforcing body 21 to be held. As exemplified in the FIGS. 2 and 3 is illustrated, the reinforcing grid forming the reinforcement body 21 in the transverse direction Q is made relatively short, so that, for example, two holding parts 31 per holding part group 29, 30 sufficient. For larger dimensions in the transverse direction Q can also be 3, 4 or more holding members 31 in each holding part group 29, 30 are used.

The holding parts 31 are arranged in a third spatial direction, which is designated as height direction H and which is aligned at right angles to the longitudinal direction L and at right angles to the transverse direction Q, below the base body 27 and, for example, below the support surface 28.

The holding parts 31 of a common holding part group 29 are arranged on the base body 27 via at least one carrier 32. The positioning device 20 may have at least one adjustment means 33 in order to vary and adjust the distance between one of the holding parts 31 and the base body 27 and, according to the example, in particular the support surface 28. The adjusting means 33 can for this purpose have a connection displaceable in the height direction H between the carrier 32 and the holding part 31 and / or between the carrier 32 and the base body 27, as is shown by way of example in FIG FIG. 11 is illustrated. For example, in the support 32 there may be an elongated hole 34 running in the height direction H, through which a bolt 35 projects and supports the support 32 on the base body 27 or movably supports it. Along the slot 34, the carrier 32 can be moved relative to the pin 35 and the base body 27 and thus vary the altitude of the holding member 31. Additionally or alternatively, the adjusting means 33 have a screw connection between the holding part 31 and the carrier 32, so that by screwing into the carrier 32 or unscrewing the holding part 31 from the carrier 32 in the height direction H, the position of the holding member 31 relative to the base body 27 and changed can be adjusted. It goes without saying that, as an alternative to the illustrated adjusting means 33, other adjusting means 33 are also used can be.

Preferably, several or all holding parts 31 can be positioned by means of a respective associated adjustment means 33 in the height direction H relative to the base body 27 in the vertical position and can be fixed in the desired height position.

In the embodiments illustrated here, each holding part 31 is formed by a hook 39. Each hook 39 has a working portion 40 extending curved around a hook inner region and an adjoining attachment portion 41 (FIG. FIG. 12 ). The attachment portion 41 is formed, for example, by a straight pin or bolt, at its free end, which is opposed to the working portion 40, a fastening means and, for example, an external thread 42 is present. By means of the external thread 42, the hook 39 can be attached to the carrier 32. The attachment portion 41 may alternatively include other attachment means to locate the hook 39 on the carrier 32.

In the first embodiment of the positioning device 20, the hooks 39 are aligned such that the working portion curves around at least one axis substantially parallel to the transverse direction Q extending axis. The hooks 39 are open in the longitudinal direction L to one side. The hooks 39 of the first holding part group 29 are aligned so that the openings of the hook inner portions of the curved working portions 40 are remote from the hooks 39 of the second holding part group 30. Accordingly, the openings of the hook inner regions of the curved working portions 40 of the hooks 39 of the second holding part group 30 are remote from the first holding part group 29.

Preferably, there are two or more planes, which are respectively spanned by the longitudinal direction L and the height direction H, wherein in each plane a holding part 31 or hook 39 of the first holding part group 29 and a holding part 31 or hook 39 of the second holding part group 30 is arranged.

The holding parts 31 and according to the example, the hooks 39 of the first holding part group 29 are by an actuator 46 between a holding position I ( FIGS. 1 and 3-5 ) and a release position II ( FIGS. 6 and 7 ) movable. For this purpose, the holding parts 31 of the first holding part group 29 are fixed to a common carrier 32, wherein the carrier 32 by means of the actuator 46 is movable and, for example, about a transverse axis Q extending pivot axis S pivotally mounted on the base body 27. As a result, the holding parts 31 of the first holding part group 29 can be moved relative to the base body when pivoting about the pivot axis S. In this case, the distance in the longitudinal direction L between the holding parts 31 of the two associated holding part groups 29, 30 of a pair changes. In the release position II, the distance between the holding parts 31 of the first holding part group and the second holding part group 29, 30 is smaller than in the holding position I.

The holding parts 31 and hooks 39 of the first holding part group 29 are biased by means of a biasing device 47 in the holding position I. For this purpose, the pretensioning device 47 has at least one biasing element, for example a spring 48, which has a pretensioning force on the holding parts 31 and, according to the example, the common carrier 32 applies. By means of the biasing force of the carrier 32 is urged against a first stop 49, so that the position of the carrier 32 is defined about the pivot axis S in the holding position I or at least limited.

The biasing force can act as a tensile force and / or pressing force on the carrier 32. In the embodiment, the biasing force is a tensile force generated by a coil spring. The spring 48 attacks, for example, at a distance from the pivot axis S on the carrier 32 and therefore generates a torque about the pivot axis S, which urges the carrier 32 against the first stop 49.

The actuating device 46 and / or the biasing device 47 are preferably arranged on top of or above the base body 27.

The actuator 46 is in the first embodiment according to the Figures 1-7 designed for manual operation and has for this purpose a handle 50. The handle 50 has a first handle portion 51 and a second handle portion 52. The second handle portion 52 is fixedly connected to the base body 27 and arranged according to the example in the height direction H below the first handle portion 51. The first grip part 51 is arranged on the support 32 at a distance from the pivot axis S and protrudes in a direction away from the support 32 which is aligned parallel to a radial plane through the pivot axis S. By pressing on the first handle part 51 in the height direction H, therefore, a torque about the pivot axis S can be effected. The first handle part 51 can be moved to move the holding parts 31 of the first holding part group 29 in the release position II in the height direction H to the second handle part 52, so that the Carrier 32 pivots against the biasing force about the pivot axis S. The second handle part 52 serves as a further, second stop, which specifies the release position II by limiting the pivotal position of the carrier 32.

The distance between the two handle parts 51, 52 may be adjustable in the release position II in an embodiment not shown in detail for adjusting the position of the holding parts 31. For this purpose, for example, the position of the first grip part 51 and / or the second grip part 52 in the height direction H can be changed or adjusted.

The above-described first embodiment of the positioning device 20 is used in the production of a reinforced and in particular textile-reinforced building material body as follows:

The reinforcing body 21 is gripped and held by the holding parts 31 of the positioning device 20, so that a common handling of the reinforcing body 21 with the positioning device 20 is possible. For this purpose, the holding parts 31 of the first holding part group 29 are moved to the release position II, so that the holding parts 31 can be moved through mesh between the reinforcing elements 23 of the reinforcement body 21. By subsequently moving the holding parts 31 into the holding position I, the holding parts 31 of both holding sub-groups 29, 30 engage in each case an attack point 56 on the associated reinforcing element 23 of the reinforcing body 21. In the embodiment described here, a tensile force F is thereby exerted on the reinforcing body 21 in the longitudinal direction L between the points of application 56 ( FIGS. 4 and 5 ).

The reinforcing body 21 can be arranged together with the positioning device 20 on the formwork 22 ( Fig. 4 ). For this purpose, the positioning device 20 is placed on the upper edge of the formwork 22 by means of the support surface 28. The reinforcing body 21 is thus located in the interior of the formwork 22. The reinforcing body 21 is in particular without contact with the bottom-side inner surface of the formwork 22, by which the later visible side of the manufactured building material body is limited. Spacers that support the reinforcing body 21 on the inside of the formwork 22 may be omitted.

According to the example, all the engagement points 56 extend in a common plane E. Depending on the positioning of the holding parts 31 in the height direction H, the position and orientation of the reinforcement body 21 within the formwork 22 can be defined. In the embodiment illustrated here, the plane E is oriented substantially parallel to the support surface 28 and may extend horizontally, for example.

After the positioning and alignment of the reinforcing body 21 in the formwork 22, a flowable building material B can be introduced into the interior of the formwork 22 (FIG. Fig. 4 ). The building material B covers the reinforcing body 21 in the height direction H above and below ( Fig. 5 ). After filling the building material B this can be evenly distributed in the formwork 22 by shaking or other measures. Once the filling and distribution of the building material B in the formwork 22 is completed, the positioning device 20 can be removed. For this purpose, by pressing on the actuator 46, a switching movement of the holding parts 31 of the first holding part group 29 caused in the release position II ( Fig. 6 ). Subsequently, the positioning device can be lifted on the side with the first holding part group 29 ( Fig. 7 ). Simultaneously or subsequently, the positioning device 20 is moved parallel to the longitudinal direction L, so that the holding parts 31 or hooks 39 of the second holding part group 30 are disengaged from the reinforcing body 21. Finally, the positioning device 20 can be removed from the formwork 22.

The reinforcing body 21 formed by the textile reinforcement does not drop in the not yet hardened building material B, even if the positioning device 20 is removed before curing. As a result, the building material B can surround the reinforcement body 21 on all sides without visible spacers or fixing means. It is essential that the later visible side of the manufactured building material body, which is assigned to the bottom-side inner surface of the formwork 22, can be uniformly formed without disturbances that would arise, for example, by visible end faces of spacers.

In an alternative embodiment, the positioning device 20 may remain disposed on the formwork 22 during the curing of the building material B and hold the reinforcing body 21. In this variant, the holding parts 31 are fixed in the cured building material B on the opposite side of the visible side and protrude there out of the building material body. The holding parts 31 are severed in this embodiment before removing the positioning device 20 from the cured building material B.

For this purpose, it may be advantageous if the holding parts 31 and, according to the example, the hooks 39 have a predetermined breaking point 57 ( FIGS. 12 and 13 ). The predetermined breaking point 57 may be formed by a notch on the holding part 31. The position of the predetermined breaking point 57 is preferably arranged at the height on the holding part 31, which corresponds to the back of the manufactured building material body. The distance between the predetermined breaking point 57 and the center of the curved working portion 40 of the hook 39 in the height direction H thus corresponds to the distance between the surface of the poured into the formwork 22 flowable material B from the reinforcing body 21. The predetermined breaking point 57 may be located in the attachment portion 41.

The notching or weakening of the holding part 31 is preferably carried out in the transverse direction Q, so that a breakage of the holding parts 31 or hook 39 by generating the tensile force F is avoided.

In the embodiment of the positioning device 20 explained so far, the holding parts 31 of the second holding part group 30 can not be moved by the actuating device 46. In a modification to this, it is also possible to move all the holding parts 31 in a switching movement between the holding position I and the release position II or vice versa.

In FIG. 8 an exemplary embodiment is illustrated. In this case, both supports 32 of both holding sub-groups 29, 30 are each mounted pivotably about a transverse axis Q extending pivot axis S on the base body 27. Via a mechanical coupling device 60, for example, a coupling rod 61, the two carriers 32 of the two holding part groups 29, 30 coupled to each other motion. Upon actuation of the actuator 46 for moving the holding parts 31 from the holding position I to the release position II, both carriers 32 are pivoted and the respective holding parts 31 are moved towards each other.

In FIG. 8 the pivotal position of the carrier 32 is illustrated in the release position II. By the coupling of the two carriers 32, all holding parts 31 or hooks 39 move away from their previous point of attack 56, so that the removal of the positioning device 20 from the reinforcing body 21 is simplified without changing its orientation or position within the still flowable building material B. Preferably, the positioning device 20 can be removed by a movement in the height direction H, as indicated by the arrow in FIG FIG. 8 is indicated.

For positioning a larger reinforcing body 21 within a formwork 22, a plurality of separate positioning devices 20 can also be used.

Instead of pivoting the holding parts 31 for carrying out the switching movement between the holding position I and the release position II, the holding parts 31 or the relevant carrier 32 can also be moved parallel to the longitudinal direction L. An embodiment of this is in FIG. 9 illustrated. There, the first grip part 51 is mounted about a pivot axis S extending in the transverse direction Q and connected on the other side relative to the pivot axis S via a connecting rod 62 with the carrier 32 of the holding parts 31 of the first holding part group 29. The carrier 32 of the first holding part group 29 is slidably mounted on the base body 27 in the longitudinal direction L. About the Connecting rod 62, the pivoting movement of the first handle part 51 is converted into a linear movement of the carrier 32, so that the carrier 32 can be moved with the holding parts 31 along the base body 27 between the holding position I and the release position II. The biasing of the carrier 32 in the holding position I is carried out as in the other embodiments by means of the biasing means 47th

It is understood that in the embodiment according to FIG. 9 Both carriers 32 of both holding part groups 29, 30 can be linearly displaceable. For this purpose, a separate actuating device 46 and a separate biasing device 47 may be present for the movement. It is also possible to assign the actuating device 46 to both carriers 32, wherein instead of a fixed second grip part 52, the second grip part 52 is also movably mounted about the pivot axis S and connected via a further connecting rod 62 to the carrier 32 of the second holding part group 30 (in FIG FIG. 9 shown in dashed lines). The second carrier 32 may be assigned a separate biasing device 47.

In FIG. 9 another optional embodiment is illustrated. For example, each holding member 31 may be configured to hold a plurality of separate, not directly interconnected reinforcing bodies 21. For this purpose, the holding part 31, for example, two curved working portions 40 and thus have two hook inner regions which are arranged adjacent to each other in the height direction H. In this embodiment, for example, two reinforcing bodies 21 according to FIG. 2 held in the form of reinforcing meshes or reinforcing mats approximately parallel to each other and positioned in the formwork 22 become.

In FIG. 10 is a highly schematic plan view of an embodiment of the positioning device 20 is shown, which consists so to speak of two of the previously described embodiments, which are arranged in a cross shape and the base body 27 are connected to each other at the intersection. In this way, a reinforcing body can be received and held, so that tensile forces can be generated on the reinforcing body 21 in two mutually perpendicular directions. At the in FIG. 10 illustrated example, two pairs of each of a first holding part group 29 and a second holding part group 30 are present, which face each other in a spatial direction along the rod-shaped base body 27. The number of pairs of holding sub-groups 29, 30 may vary in each spatial direction depending on the dimension of the reinforcing body 21 and be selected accordingly.

In the FIGS. 14 and 15 By way of example, actuating devices 46 are illustrated in which an automatable, motorized movement of the holding parts 31 of at least the first holding part group 29 or both holding part groups 29, 30 for performing the switching movement between the holding position I and the release position II is present.

In the schematic in FIG. 14 illustrated embodiment, the carrier 32 of the two holding part groups 29, 30 are mounted linearly movable on the base body 27. Each carrier 32 is connected to a spindle nut or has a spindle nut which sits on an associated drive spindle 65. By driving the drive spindle 65 about its respective axis of rotation, a linear movement of the respective carrier 32 in the longitudinal direction L along the base body 27 is effected. According to the example, the two drive spindles 65 are connected to a common drive motor 66 and have opposite thread pitches, so that the two carriers 32 are moved towards each other during the rotation of the drive motor 66 in one direction and during the rotation in the opposite direction. In a modification to this, as in previously described embodiments, a support 32 could also be arranged immovably on the base body 27 by the actuating device 46. A further modification is possible in that each drive spindle 65 is assigned a separate drive motor 66. The at least one drive motor 66 is preferably formed by an electric motor and / or electrically controllable.

Instead of a drive motor 66, the actuator 46 can be performed so to speak passively without own motor drive. For this purpose, the drive motor 66 in FIG. 14 be replaced for example by a coupling device which can be coupled to perform the switching movement between the holding position I and the release position II with a corresponding external drive motor.

In FIG. 15 an actuator 46 is illustrated without its own motor drive. In this embodiment, the holding parts 31 are analogous to FIG. 14 slidably mounted on the base body 27 in the longitudinal direction L and in each case with a longitudinally extending Rack 67 connected. Both racks are engaged with a drive pinion 68 disposed therebetween. By rotation of the drive pinion 68, the carriers 32 of the two holding sub-groups 29, 30 can be moved toward or away from each other. The drive pinion 68 may be provided with a coupling device for connection to an external drive motor. Alternatively to the illustrated embodiment, it is also possible to arrange the drive motor on the base body 27 and connect to the drive pinion 68.

In a modification to the illustrated embodiments, many other types of drive are possible. For example, belt drives can also be used to couple a drive sprocket 68 or a drive motor 66 to the supports 32.

The invention relates to a positioning device 20 and to a method for using the positioning device 20 in producing a building material body from a building material B. The positioning device 20 is adapted to hold a reinforcing body 21 preferably consisting of a textile reinforcement and by means of the positioning device 20 inside a formwork 22 to arrange and align. For this purpose, the positioning device has a first holding part group 29 and a second holding part group 30, which are arranged on a base body 27. At least one of the two holding sub-groups 29, 30 is movable between a holding position I and a release position II, for example by a linear movement and / or a pivoting movement. In the holding position I, each holding part 31 engages at a respectively assigned point of attack 56 on the reinforcing body 21 at. In the release position II, the distance of the holding parts 31 to each other is different from the distance of the engagement points 56 on the reinforcing body 21, so that the positioning device 20 can be brought into engagement with the reinforcing body 21 or removed from the reinforcing body 21. In the release position II, an independent handling of the positioning device 20 with respect to the reinforcing body 21 is made possible. For switching between the holding position I and the release position II is a manually operable and / or automatically actuated actuator 46 is present.

LIST OF REFERENCE NUMBERS

20

positioning

21

reinforcing body

22

formwork

23

reinforcing element

27

base body

28

bearing surface

29

first holding subgroup

30

second holding subgroup

31

holding part

32

carrier

33

adjustment

34

Long hole

35

bolt

39

hook

40

working section

41

mounting portion

42

external thread

46

actuator

47

biasing means

48

feather

49

first stop

50

handle

51

first handle part

52

second handle part

56

point of attack

57

Breaking point

60

coupling device

61

coupling rod

62

connecting rod

65

drive spindle

66

drive motor

67

rack

68

pinion

I

holding position

II

release position

B

building material

e

level

F

traction

S

swivel axis

Claims (19)

Positioning device (20) for positioning a reinforcing element (21) having intersecting reinforcing elements (23) in a formwork (22),
with a base body (27) on which at least one first holding part group (29) and at least one second holding part group (30) are arranged, each holding part group (29, 30) having at least one holding part (31), and wherein the at least one holding part ( 31) of the first holding part group (29) is movably mounted and by means of an actuating device (46) between a holding position (I) and a release position (II) is movable,
wherein the holding parts (31) of the first and second holding part groups (29, 30) are adapted to engage in the holding position (I) at an attack point (56) on an associated reinforcing element (23) of the reinforcing body (21),
and wherein the holding parts (31) of the first and second holding part groups (29, 30) are adapted to enable the movement of the positioning device (20) relative to the reinforcing body (21) in the release position (II). Positioning device according to claim 1,
characterized in that the holding parts (31) of the first and second holding part group (30) arranged thereto are, in the holding position (I) between the engagement points (56) to generate a tensile force (F) on the reinforcing body (21). Positioning device according to claim 1 or 2,
characterized in that the holding parts (31) of the first and second holding part group (29, 30) are adapted to generate in the release position (II) no tensile force (F) between the points of attack (56). Positioning device according to one of the preceding claims,
characterized in that the at least one holding part (31) of the first holding part group (29) in the holding position (I) a greater distance from at least one holding part (31) of the second holding part group (30) than in the release position (II). Positioning device according to one of the preceding claims,
characterized in that the holding parts (31) are arranged such that the engagement points (56) are in the holding position (II) in a common plane (E). Positioning device according to one of the preceding claims,
characterized in that on the base body (27) a bearing surface (28) is provided, which is adapted to be placed on an upper side of the formwork (22). Positioning device according to claim 5 and 6,
characterized in that the plane (E) is aligned in a predetermined orientation relative to the support surface (28). Positioning device according to claim 6 or 7,
characterized in that adjusting means (33) are provided which are adapted to adjust the distance between at least one associated holding part (31) and the support surface (28). Positioning device according to one of the preceding claims,
characterized in that all the holding parts (31) by the actuating means (46) are movably arranged on the base body (27). Positioning device according to one of claims 1 to 8,
characterized in that the holding parts (31) of the second holding part group (30) by the actuating device (46) immovably on the base body (27) are arranged. Positioning device according to one of the preceding claims,
characterized in that by the actuating means (46) for switching between the holding position (I) and the release position (II) movable on the base body (27) arranged holding parts (31) by means of a biasing means (47) in the holding position (I) are biased , Positioning device according to one of the preceding claims,
characterized in that several or all holding parts (31) of a common first holding part group (29) or second holding part group (30) on a common carrier (32) are arranged, which is movably mounted on the base body (27). Positioning device according to one of the preceding claims,
characterized in that the actuating means (46) comprises a handle (50) adapted for manual operation. Positioning device according to one of the preceding claims,
characterized in that the actuating device (46) has a motor-driven drive part. Positioning device according to one of the preceding claims,
characterized in that a plurality of first holding part groups (29) and a plurality of second holding part groups (30) are present. Positioning device according to one of the preceding claims,
characterized in that the holding parts (31) each have a predetermined breaking point (57). A method for producing a reinforced building material body using the positioning device (20) according to one of the preceding claims, with the following steps: Moving the at least one holding part (31) of the first holding part group (29) by means of an actuating device (46) into the release position (II), Positioning the holding parts (31) adjacent to or at the respective point of application (56) on the reinforcing body (21), Moving the at least one holding part (31) of the first holding part group (29) by means of an actuating device (46) into the holding position (I), - Positioning of the held by the holding parts (31) reinforcing body (21) in the formwork (22) by means of the positioning device (20), - filling a flowable building material (B) in the formwork (22), - curing the building material (B). Method according to claim 17,
characterized in that following the filling of the flowable building material (B) and before the curing of the building material (B), the following steps are carried out: - Moving the at least one holding part (31) of the first holding part group (29) by means of an actuating device (46) in the release position (II) and - Removing the positioning device (20) from the reinforcing body (21). Method according to claim 17,
characterized in that after curing of the building material (B) the following steps are carried out: - Cutting the holding parts (31) and - Removing the positioning device (20) from the reinforcing body (21).

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