EP3947859A1 - Anchor apparatus - Google Patents

Abstract

The invention relates to improvements in the technical field of construction shuttering, in particular concrete shuttering. For that purpose, the anchor apparatus (1) is proposed. The anchor apparatus comprises a locking device (8) by means of which functional units (5, 6), which are used to stabilise shuttering elements (2, 3), can be fixed in receiving openings (7) in the shuttering elements (2, 3). Each locking device (8) comprises a blocking pin (9) having an unround cross-section at a free end (10). By means of the free end (10), the blocking pin (9) can be inserted into a longitudinal groove in the functional unit (5, 6) to be fixed, which longitudinal groove is open at one end and has an expanded groove width (12) at the other end. The free end (10) of the blocking pin (9) is dimensioned in such a way that, when in the blocking position, the blocking pin (9) cannot be guided through the longitudinal groove (11).

Description

Anchor device

The invention relates to an anchor device of a

Concrete wall formwork with two opposite one another

Formwork elements, which by means of a tie rod

Anchoring device can be connected to one another, the

Anchor device has two functional units, which can be connected to the anchor rod to stabilize the formwork elements, each formwork element

Has receiving openings in which either the

Functional units can be used, the

Functional units in the receiving openings of the

Formwork elements are each fixable by means of a locking device.

The publications WO 2016/026812 A1 and DE 10 2014 012 037 A1 describe an anchor device of the type mentioned at the beginning. The locking device of these

Anchor device known from publications comprises a locking pin, which is used to fix and release a

Functional unit, for example an anchor nut unit, by applying axial force, e.g. by hitting a hammer on its respective front end or rear end

is axially adjustable between an open position and a closed position.

The object of the invention is to provide an anchor device of the type mentioned at the beginning with an alternative one

Provide locking device.

To solve this problem, an anchor device of the type mentioned is proposed which has the means and

Features of the independent claim directed to such an anchor device. In particular, becomes the solution The object is therefore proposed in the anchor device mentioned at the beginning that each closure device of the

Anchoring device has a locking pin with a non-circular

Has cross section at a free end. The free end of the locking pin can be inserted into a longitudinal groove on the functional unit that is open at one end and has a widened groove width at the other end. The locking pin is rotatably mounted on the formwork element about its longitudinal axis and can be adjusted between a release position and a locking pitch. In the release position of the locking pin, the free end of the locking pin can be inserted axially into the longitudinal groove. In the locking pitch of the locking pin, the free end of the locking pin is too wide to be axially insertable into the longitudinal groove. If the locking pin is moved from its locking division into its release position, the locking pin can be inserted with its free end through the longitudinal groove into the groove width extension. If the locking pin has reached there with its free end, the locking pin is out of his

Release position brought into its blocked division. In the

With a locking pitch, the free end is then aligned so that it is too ready to be guided through the longitudinal groove in the opposite direction. In the locking division, the free end of the locking pin is thus opposite to its axial one

Insertion direction through the longitudinal groove form-fitting in the

Groove width extension held, whereby the functional unit in its position in the receiving opening of the respective

Formwork element is set.

The free end of the locking pin can therefore be dimensioned such that it cannot be guided through the longitudinal groove when the locking pin is in the locking pitch.

In one embodiment of the anchor device it is provided that the anchor rod for connection to the functional unit, in particular to both functional units of the Anchor device, having an external thread.

In one embodiment of the anchor device it is provided that a functional unit has an anchor nut unit which can be inserted on and in the one formwork element

is determinable. The anchor nut unit can have an internal thread into which the previously mentioned anchor rod can be screwed with its external thread for fastening.

In one embodiment of the anchor device, it is provided that a functional unit has an interchangeable sleeve that has one, for example the one already mentioned above,

Associated anchor nut unit and can be used on a formwork element and can be fixed therein and has a longitudinal channel for a lock-free reception of one or the anchor rod. The formwork element into which the interchangeable sleeve can be inserted can be a formwork element that is opposite the previously mentioned anchor nut unit.

The interchangeable sleeve can be inserted into the receiving opening of a

Insert the formwork element of the anchor device. With the help of the previously explained locking device, which is also the

Functional unit is assigned, which is the interchangeable sleeve

has, the interchangeable sleeve in their

Determine the position of use in the receiving opening. The

Assembly of the anchor device is facilitated because the

Interchangeable sleeve has a longitudinal channel through which the anchor rod can simply be passed, so that the interchangeable sleeve is in its position of use before the anchor device

is braced, is axially displaceable relative to the anchor rod. It remains possible to adjust the anchor device before it is brought into its ready-to-use state by tensioning it.

In one embodiment of the anchor device it is provided that an anchor rod, for example the previously mentioned, can be screwed into the functional unit of one formwork element on the one hand and, on the other hand, extending through the longitudinal channel in the interchangeable sleeve, can be locked on the other formwork element by means of a locking unit. The closing unit can be fixed on the anchor rod for bracing the anchor device, for example by means of an internal thread. About the clamping unit, the anchor rod and the

The forces required to brace the anchor device can be applied.

In one embodiment of the anchor device it is provided that between two in the position of use

Formwork elements of the anchor device at least one

Spacer sleeve is arranged through which a,

for example the previously mentioned anchor rod in

Position of use extends. In the case of the previously explained

Bracing of the anchor device can be provided that the spacer sleeve is / is clamped between the two formwork elements of the anchor device so that the two formwork elements occupy a distance from one another defined by the spacer sleeve.

In one embodiment of the anchor device, it is provided that a rotation lock is formed which enables the locking pin to be transferred from the release position into the locking division and / or from the locking division into the release position

with special needs. The anti-rotation device can be used to effectively prevent the locking pin from inadvertently moving from one position to the other. In particular where the anchor device is exposed to vibrations, the anti-rotation device can be used to unintentionally loosen the

Effectively avoid locking devices.

In one embodiment of the anchor device it is provided that the widening of the groove width merges into a circumferential groove extending in the circumferential direction, preferably with an axial slope and / or closed. In particular when the circumferential groove is closed and circumferential and has a slope

has, the groove width expansion can be used for additional bracing of the anchor device.

In one embodiment of the anchor device, it is provided that a dowel pin is formed on the receiving opening which, when the functional unit is in the position of use, runs in the circumferential groove and / or extends into it,

in particular to brace the functional unit by rotating it about its longitudinal axis.

In one embodiment of the anchor device it is provided that the locking pin is mounted in the dowel pin. In another embodiment of the anchor device it is provided that the locking pin is arranged at a distance from the clamping pin. In this embodiment of the anchor device, the dowel pin can run in a separate longitudinal groove and / or protrude into a separate longitudinal groove.

The invention will now be described in more detail using an exemplary embodiment, but is not limited to this exemplary embodiment. Further exemplary embodiments result from combining the features of one or more features

Protection claims with one another and / or in combination

single or multiple features of the exemplary embodiment. They show in a partly highly schematic representation:

Fig. 1 is a side view of an anchor device with 2 held at a distance by a spacer sleeve

Formwork elements, wherein to illustrate the structure of the anchor device at a free end of an anchor rod, an interchangeable sleeve and a Closing unit of the anchor device are shown,

Fig. Figure 2 is a side view of the one in Figure 1 on the left

Page shown formwork element with a

Anchor nut unit prior to its insertion into a

Receiving opening of the formwork element for the anchor nut unit,

Fig. 3 a combined from the two previous figures

Rear view illustrating an in

Fig. 4 shown sectional view of the in Figures 1 to

3 elements of the anchor device shown,

Fig. 5 is a sectional view of a spar of the in FIG

Figures 1 to 4 shown on the left

Formwork element with a functional unit of the anchor device which comprises an anchor nut unit, wherein a locking pin is a

Locking device in the release position and the anchor nut unit before its introduction into the

Receiving opening of the formwork element are shown,

Fig. 6 shows a sectional view of the functional unit with the anchor nut unit from FIG. 5 inserted into the receiving opening and with the locking pin in locking division,

Fig. 7 a along the line in Figure 4 with VII - VII

marked line sectional view of the

Functional unit with anchor nut unit with in

Locking pin located in the locking division,

Fig. 8 10

different views of a locking pin in shown in the previous figures

Anchor device.

Figures 1-7 show an anchor device, designated as a whole by 1, of a concrete wall formwork with two themselves

opposite formwork elements 2 and 3, which by means of an anchor rod 4 of the anchor device 1 together

are connected.

The anchor device 1 has two functional units 5 and 6. The functional units 5 and 6 are connected to one another via the anchor rod 4 to stabilize the formwork elements 2 and 3. Each formwork element 2, 3 has receiving openings 7, in which the functional units 5 or 6 can optionally be used and are used in the position of use. Within each receiving opening 7 of the formwork elements 2, 3, each of the functional units 5 and 6 can be fixed by means of a locking device 8 assigned to the receiving opening 7.

Each locking device 8 has a locking pin 9 with a non-circular cross section at its free end 10. With the free end 10, the locking pin 9 can be inserted into a longitudinal groove 11 of the respective functional unit 5, 6. The longitudinal groove 11 is open at one end and is provided with a groove width widening 12 at the other end. The respective locking pin 9 is rotatably mounted on its formwork element 2, 3 about its longitudinal axis and can thus between a

Release position and a blocking division can be adjusted.

In its release position (see, for example, FIG. 5), the free end 10 of the locking pin 9 can pass through the longitudinal groove 11. In its locking pitch, the free end 10 of the locking pin 9 is too wide to be guided out axially into the longitudinal groove 11 or through the longitudinal groove 11. That way you can with the aid of the locking pin 9 and due to the design of its free end 10, the functional units 5, 6 are fixed in the receiving openings 7 of the formwork elements 2 and 3

achieve.

The anchor rod 4 is provided with an external thread 13 for connection to at least one of the functional units 5, 6.

The functional unit 5, with which the anchor rod 4 can be connected, comprises an anchor nut unit 14 which can be inserted into the receiving opening 7 provided for this purpose on the one formwork element 2 of the two formwork elements 2 and 3 and can be fixed therein. The anchor nut unit 14 is equipped with an internal thread 15 that matches the external thread 13 of the anchor rod 4. The anchor rod 4 can thus be reliably connected to the anchor nut unit 14.

The other functional unit 6 of the two functional units 5 and 6 has an interchangeable sleeve 16. The interchangeable sleeve 16 is assigned to the anchor nut unit 14 and in the

Formwork element 3 can be used, which is opposite the anchor nut unit 14. To this end, the

Formwork element 3 has a receiving opening 7 which the

Replaceable sleeve 16 receives in its position of use.

The interchangeable sleeve 16 is provided with a longitudinal channel 17 through which the anchor rod 4 can be passed despite its external thread 13. Thus, the anchor rod 4 is lock-free in the longitudinal channel 17 of the interchangeable sleeve 16

recorded.

The anchor rod 4 is on the one hand on the functional unit 5 of one formwork element 2, namely here the

Anchor nut unit 14, screwed in and on the other hand

the anchor rod 4 extends through the longitudinal channel 17 in the interchangeable sleeve 16. By means of a closing unit 18 is the Tie rod 4 is then locked on the other formwork element 3. For this purpose, the closing unit 18 is screwed onto the external thread 13 of the anchor rod 4 up to the stop on the formwork element 3.

Between the two formwork elements 2 and 3 in the position of use of the anchor device 1, at least one spacer sleeve 19 is arranged, through which the anchor rod 4 extends in the position of use. The spacer sleeve 19 specifies a defined distance between the two formwork elements 2 and 3 of the anchor device 1.

Figures 8-10 show different views of a locking pin 9 and also illustrate a rotation lock 20 for the locking pin 9. The rotation lock 20 prevents undesired / unintentional transfer of the locking pin 9 from the release position into the locking division and also from the locking division into the release position . The

For this purpose, anti-rotation device 20 comprises a plurality of troughs 21 distributed evenly around an axis of rotation of locking pin 9, into which an actuating lever 22 of locking pin 9 can be moved both in locking pitch and in the release position of locking pin 9. Contrary to the restoring force of a restoring element (not shown in the figures), for example a restoring spring, of the anti-rotation device 20, the actuating lever 22 is transferred from one trough 21 into another trough 21 in order to move the locking pin 9 out of the

Release position in the blocked division or from the

To move the locking division into the release position. The

The restoring force of the restoring element holds the locking pin 9 in the trough 21 and prevents the locking pin 9 from taking off

Accidentally changes his position and thereby the

Closure _V orrichtung

Figures 1 - 7 make it clear that the Groove width extensions 12, which on the two

Functional units 5, 6 and here specifically at the

Armature nut unit 14 on the one hand and the interchangeable sleeve 16 on the other hand, each in a

Circumferential direction closed circumferential groove 23

pass, which also has an axial slope.

A dowel pin 24 is also assigned to each functional unit 5, 6. The position of the spring pins can be seen clearly in FIG. The dowel pins 24 are formed on the receiving opening 7 of the two formwork elements 2, 3. At in

Functional unit 5, 6 located in the position of use, the respective dowel pin runs in the circumferential groove 23 or protrudes into it. With the help of the dowel pins 24 it is possible to turn the respective functional unit 5, 6 around your

To brace the longitudinal axis. In this case, the previously mentioned axial slope of the respective circumferential groove 23 with the dowel pin 24 arranged in a stationary manner on the respective formwork element 2, 3 is used. By rotating the respective

Functional unit 5, 6 about its longitudinal axis, the slope of the respective circumferential groove 23 can be used to generate an axial clamping force that can be transmitted to the respective formwork element 2, 3 via the dowel pin 24.

In an embodiment not shown in the figures, the aforementioned locking pin 9 is in the same

Formwork element 2, 3 mounted dowel pin 24 assigned. In the embodiment shown in the figures a

Anchoring device 1 is provided that the respective

Locking pin 9 is arranged at a distance from the clamping pin 24 assigned to the same functional unit 5, 6. In the exemplary embodiment of the anchor device 1 shown in the figures, the respective locking pin 9 and the respective clamping pin 24 are inserted through separate longitudinal grooves 11 into the circumferential groove 23. The receiving openings 7 for the functional units 5 and 6 are formed in spars 25 of the formwork elements 2 and 3. Each of the formwork elements 2 and 3 also has one

Formwork skin 26, which is attached to the spar 25 of the respective

Formwork element 2.3 is attached or at least rests against it.

The invention is concerned with improvements on the

technical field of building formwork, especially the

Concrete formwork. For this purpose, the anchor device 1

suggested. This has a closure device 8 with which the formwork elements 2, 3

Functional units 5, 6 used can be set in receiving openings 7 of the formwork elements 2, 3. Each

The locking device 8 comprises a locking pin 9 with a non-circular cross section at a free end 10. With the free end 10, the locking pin 9 can be extended into a groove width expansion 12 that is open at one end and a slot width at the other end

having longitudinal groove of the functional unit 5, 6 to be fixed are introduced. The free end 10 of the locking pin 9 is dimensioned such that it cannot be guided through the longitudinal groove 11 when the locking pin 9 is in the locking pitch.

/ List of reference symbols

List of reference symbols

1 anchor device

2 formwork element

3 formwork element

4 tie rod

5 functional unit

6 functional unit

7 receiving opening in 2,3

8 locking device

9 locking pin

10 free end

11 longitudinal groove

12 Groove width expansion

13 external thread from 4

14 anchor nut unit

15 internal threads from 14

16 interchangeable sleeve

17 longitudinal channel

18 clamping unit

19 spacer sleeve

20 anti-rotation device

21 hollow

22 operating lever

23 circumferential groove

24 roll pin

25 spar of 2, 3

26 formlining

/ Expectations

Claims

Expectations 1. Anchor device (1) of a concrete wall formwork with two opposing formwork elements (2,3) which can be connected to one another by means of an anchor rod (4) of the anchor device, the anchor device (1) having two functional units (5,6) which are connected to the anchor rod (4) can be connected to stabilize the formwork elements (2, 3), each formwork element (2, 3) having receiving openings (7) in which the functional units (5, 6) can optionally be inserted, the Functional units (5, 6) in the receiving openings (7) of the Formwork elements (2, 3) each by means of a Closure device (8) can be fixed, thereby characterized in that each of the locking devices (8) has a locking pin (9) with a non-circular cross-section at a free end (10), with which the locking pin (9) in an open at one end and a groove width extension (12) at the other end Longitudinal groove (11) on the functional unit (5, 6) is insertable, wherein the locking pin (9) on the formwork element (2, 3) rotatably mounted about its longitudinal axis and between a Release position in which the free end (10) of the locking pin (9) can be axially inserted into the longitudinal groove (11), and a locking pitch in which the free end (10) of the locking pin (9) is too wide to be axially inserted into the Longitudinal groove (11) to be insertable is adjustable. 2. Anchoring device (1) according to claim 1, characterized characterized in that the anchor rod (4) has an external thread (13) for connection to the functional unit (5, 6) having . 3. Anchoring device (1) according to claim 1 or 2, characterized characterized in that a functional unit (5) a Has anchor nut unit (14), which on the one Formwork element (2) can be used and fixed therein. 4. Anchoring device (1) according to one of the preceding claims, characterized in that a functional unit (6) has an interchangeable sleeve (16) which the or one Anchor nut unit (14) assigned and attached to one, in particular one of the formwork element (3) opposite the or an anchor nut unit (14) can be inserted and fixed therein and has a longitudinal channel (17) for a lock-free accommodation of an anchor rod (4). 5. Anchoring device according to claim 4, characterized in that one or the anchor rod (4) on the one hand on the Functional unit (5) of one formwork element (2) can be screwed in and on the other hand, extending through the longitudinal channel (17) in the interchangeable sleeve (16), can be locked on the other formwork element (3) by means of a locking unit (18). 6. Anchoring device (1) according to one of the preceding claims, characterized in that between two in Formwork elements (2, 3) of the anchor device (1) located in the position of use, at least one spacer sleeve (19) through which one or the anchor rod (4) extends in the position of use. 7. Anchoring device (1) according to one of the preceding claims, characterized in that a rotation lock (20) is formed which prevents transfer of the locking pin (9) from the release position into the locking division and / or from the locking division into the release position. 8. Anchoring device (1) according to one of the preceding claims, characterized in that the groove width extension (12) extends in a circumferential direction, preferably with an axial slope and / or closed Circumferential groove (23) passes. 9. Anchoring device according to one of the preceding claims, characterized in that a dowel pin (24) is formed on the receiving opening (7), which at in Functional unit (5, 6) located in the position of use runs in one or the circumferential groove (23) and / or extends into this, in particular to clamp the functional unit (5, 6) by rotating it about its longitudinal axis. 10. Anchoring device (1) according to one of the preceding claims, characterized in that the locking pin (9) is mounted in the clamping pin (24) or that the locking pin (9) is arranged at a distance from the clamping pin (24), in particular wherein the clamping pin in a separate Longitudinal groove (11) runs. / Summary