Combination of climbing console and lagging member

Abstract

The invention relates to a climbing bracket (1) with a frame (14) and a hook (2) slidably mounted in the frame (14), wherein the hook (2) can be suspended in a formwork part (3) that can be inserted into a wall recess and can be secured within the formwork part (3) against detachment from the formwork part (3). For securing, the formwork part (3) and the hook (2) each comprise at least one passive securing element, wherein a securing element of the formwork part (3) engages with a securing element of the hook (2) during a force acting on the hook (2) in a vertical or oblique upward direction such that detachment of the hook (2) from the formwork part (3) is prevented. The invention further relates to a formwork part (3) for suspending the climbing bracket (1).The formwork part (3) can be used to form a wall recess in a formwork and has an entry opening (31) to the outside, a closed back (5) and a recess in the lower part to accommodate part of the hook (2).

Description

Field of invention

[0001] The invention relates to a combination of a climbing bracket with a formwork part in which the climbing bracket can be suspended, for use in a wall according to the independent claims. background

[0002] When concreting high walls, so-called climbing brackets are typically used, which can be hung in specially designed wall recesses. The brackets typically have a triangular frame, one side of which rests against the wall when the bracket is in place, while the other side projects perpendicular to the wall to form a walkway and / or to support the formwork. The walkway is usually formed by boards placed on adjacent brackets. The formwork is typically placed directly against the wall, supported by several brackets. A post for fall protection is usually inserted at the outer end of the frame. State of the art

[0003] From EP 0 611 257, such a bracket is known, in which the frame includes a hook that is inserted into the wall recess and is slidably mounted within the frame. The frame is pulled towards the hook by a transverse wedge, which can be inserted into aligned openings of the frame and the hook, until it rests firmly against the wall. A problem with this solution arises from the inadequate securing of the bracket against upward displacement, for the following reasons: in order to insert the hook, which is essentially L-shaped, into the wall recess, the recess must be of sufficient height to allow the hook's leg to be inserted. Once inserted, a gap remains in the recess above the hook. Therefore, it is possible, for example, if the bracket is bumped from below, for the hook to pop out and the bracket to be unintentionally dislodged.This problem is addressed by inserting a wedge into the aforementioned free space. However, this solution introduces a new problem: it has been found that the wedge interferes with the placement of the next wall formwork, as there is no flat surface directly against the wall. Therefore, an additional support had to be used.

[0004] CH 705 227 describes a climbing bracket with a hook on a frame, wherein the hook can be engaged in a formwork element. The hook has widening means by which it can be widened within the formwork element, so that after engagement, the hook cannot be detached from the formwork element due to a permanent, force-fit connection. DE 3840761 A1, GB 1360002 A and CH 66066 A also describe a climbing bracket for engagement in a formwork element. Description of the invention

[0005] The object of the present invention is to provide an even safer and more user-friendly climbing console.

[0006] This problem is solved by a combination of a climbing bracket and a formwork part according to claim 1.

[0007] The climbing bracket of the combination according to the invention is used in particular in the construction of concrete structures for hanging in at least one wall recess provided with a formwork part according to the invention.

[0008] The inventive formwork component of the combination is used as a lost element in a wall recess. Brief description of the drawings

[0009] Preferred embodiments of the invention are described in the dependent claims, the following description, and the figures. These show: Figure 1an exploded view of a first embodiment of an inventive combination of a climbing bracket with a hook and a formwork part for hanging the climbing bracket as well as a locking pin, Figure 2 a side view of the first embodiment of the climbing bracket, wherein the hook is hooked into the formwork part, Figure 3 the side view from Fig. 2 , whereby the hook is secured in the casing part, Figure 4 a side view of a second, unclaimed embodiment of the climbing bracket, wherein the hook is hooked into the formwork part, Figure 5 the side view from Fig. 4 , whereby the hook is secured in the casing part, Figure 6 a side view of a third embodiment of the climbing bracket, wherein the hook is hooked into the formwork part, Figure 7 the side view from Fig. 6 , whereby the hook is secured in the casing part, Figure 8a side view of a fourth, unclaimed embodiment of the climbing console with a safety lever, wherein the hook is arranged in an intermediate position between the inserted position and the hooked position, Figure 9 the side view from Fig. 8 where the hook is attached to the formwork part, Figure 10 the side view from Fig. 9 where the hook is secured in the casing part, Figure 11 the side view from Fig. 10 wherein the hook is hooked into the casing part and with a further embodiment of the locking lever. Figure 12 a side view of a fifth, unclaimed embodiment of the climbing bracket, wherein the hook is inserted in the formwork part, Figure 13 the side view from Fig. 12 where the hook is secured in the casing part, Figure 14a perspective view of a sixth, unclaimed embodiment of the climbing bracket after securing the hook in the formwork part, Figure 15 a side view of a seventh, unclaimed embodiment of the climbing console wherein the hook is attached and has a locking mechanism, and Figure 16 the side view from Fig. 15 where the hook is secured in the formwork part and the bolt is inserted into the formwork part. Ways to implement the invention

[0010] In the context of this document, the term "passive" is to be understood as meaning that a passive belay device only "secures" when an external force is applied. In the context of this document, this external force refers to one that acts vertically upwards or diagonally upwards on a hook of the climbing console or on another element of the climbing console through which the external force can be transmitted to the hook in the aforementioned direction.

[0011] Throughout the following text, the term "front side" refers to the side of the element in question facing the formwork component. Accordingly, the term "rear" refers to the side opposite the front side.

[0012] Fig. 1Figure 1 shows an exploded view of a first embodiment of a climbing bracket 1. The climbing bracket 1 is suspended in a recess provided for this purpose in a wall (not shown) and serves as a platform and formwork for the subsequent construction work. The climbing bracket 1 comprises a frame 14. Such a frame 14 is sufficiently described in document CH 705 227 and is therefore not explained in detail here. The frame 14 is only shown in Fig. 1 , 2 , 14 , 15 and 16The climbing bracket 1 is shown in the illustration, but it is assumed to be present in all other embodiments. A hook 2 is provided for attaching the climbing bracket 1 to the wall, which can be inserted into the recess in the wall (not shown). The hook 2 is preferably captive, attached to the frame 14, which applies to all embodiments of the invention. Optionally, the climbing bracket 1 has a panel with an opening (not shown) on its end face at the frame 14, the panel being, in particular, a rubber lip. The rubber lip serves to prevent the ingress of dirt, such as cement slurry, into the recess in the wall. This is also described in detail in document CH 705 227. Furthermore, the climbing bracket 1 includes a clamping device 16a, designed as a transverse wedge in the present examples, which serves to attach or clamp the hook 2 to the frame 14.This fastening is achieved by the fact that, after inserting the hook 2 into the frame 14, the wedge 16a can be inserted through a lateral opening of the frame 14 and a lateral opening 16 of the hook 2.

[0013] The climbing bracket 1 is hung in the wall as described below. First, during the assembly of the wall section, which is assumed to already exist, a locking pin 6 is attached to the formwork elements erected for the wall section in such a way that an opening 31 of the formwork part 3 can be slid onto the locking pin 6 until the end face of the formwork part 3 rests against the locking pin 6 and the opening 31 is closed. This prevents the opening 31 from being closed during the subsequent filling of the space between the formwork elements with concrete.

[0014] The formwork part 3 has a closed rear side 5 and a recess 5a in the lower part for receiving part of the hook 2.

[0015] After the concrete has hardened, formwork section 3 is firmly anchored in the concrete as a permanent element, forming a recess accessible through opening 31. To continue constructing the wall section upwards, climbing bracket 1 can now be inserted into the recess formed by formwork section 3 by first inserting hook 2 of climbing bracket 1 through opening 31 and then hooking it into formwork section 3. Hook 2 is then secured against loosening or disengagement using safety elements. Afterward, any further elements of climbing bracket 1 are installed, such as... . Boards that serve as a platform for further work.

[0016] The following terms are used throughout the document to refer to the positions of hook 2 in the casing part 3: "Inserted" means that the front part of the hook 2 is positioned in the recess of the formwork part 3, but it can essentially be pulled out horizontally. "Hooked" means that the front part of the hook 2 was first inserted into the formwork part 3 and then pressed downwards, so that it can no longer be removed by pulling it horizontally out of the formwork part 3, but only by pulling the hook upwards and then horizontally (cf. e.g. Fig. 2 ), and "secured" means that the securing elements of the hook 2 and the formwork part 3, which are yet to be described, are positioned relative to each other and interact in such a way that they prevent the hook from coming loose or being knocked out of the formwork part when an external force is applied vertically or obliquely upwards.

[0017] Fig. 2 shows a side view of a first embodiment of console 1 in the suspended state and Fig. 3 the console off Fig. 2 in a secured state. The hook 2 has a projection 4a as a securing element on a first surface which, when the hook 2 is subjected to tensile stress, interacts with a second surface of the formwork part 3. Correspondingly, the formwork part 3 has a recess 4b as a securing element on the second surface.

[0018] In Fig. 3 The securing of hook 2 is shown. Once hook 2 has been hooked into the lower recess of the formwork part 3, it is turned in the opposite direction to the insertion direction x (which, for clarity, is only shown in the Fig. 1 and 2 (shown, but assumed to be given for all embodiments) is pulled until the projection 4a enters the indentation 4b.

[0019] The climbing console 1 is then attached using the transverse wedge 16a ( Fig. 1 ) firmly clamped to the formwork part 3 or to the wall by driving or inserting the cross wedge 16a into the aligned holes 16 of the frame 14 and the hook 2.

[0020] If an external force is applied to the climbing bracket 1 from below, it is impossible to lift the hook 2 from its secured position, thus preventing it from potentially coming out of the formwork section 3, as the hook 2 is "stuck" in the recess 4b with its projection 4a. However, the securing effect also exists if the climbing bracket is not clamped to the formwork section 3 or the wall as previously described. In this case, when the external force is applied from below, the hook 2 pivots around the point of engagement between projection 4a and recess 4b until its upper front edge abuts the rear side 5. This wedges the hook 2 into the lower recess of the formwork section 3, preventing it from being unhooked.

[0021] Figs. 4 and 5 Each shows a side view of a second, unclaimed embodiment of the climbing console, wherein in Fig. 4the hook 2 is hooked into the formwork part 3 and in Fig. 5The hook 2 is secured in the casing part 3. This embodiment differs from the first embodiment in that different securing elements are provided. The casing part 3 has a securing flap 8b as a securing element, and the hook 2 has a mating surface 8a for the securing flap 8b on one of its upper edges. The securing flap 8b is attached to the side of the casing part 3 facing the upper edge of the hook 2. The securing flap 8b is pivotable between a vertical position and an inclined or horizontal position. It is in the inclined or horizontal position during the insertion of the hook 2 into the casing part 3 and in the vertical position after insertion. In the vertical position, the securing flap 8b prevents the hook 2 from disengaging by abutting the mating surface 8a of the hook 2 when the hook 2 is moved upwards.

[0022] Due to its shape and elastic material, the safety flap 8b is flexible and can be moved into the horizontal or inclined position when the hook 2 is inserted, springing back into the vertical position when the hook 2 is hooked or secured.

[0023] The opposite surface 8a is formed here by a groove in the upper edge of the hook 2. Alternatively, it can also be just a section of the upper edge of the hook 2.

[0024] The groove 8a limits the lateral slippage of the locking flap 8b when external force is applied. The clearance is determined or adjustable by the length of the groove 8a. Furthermore, the locking flap can be adjusted in any of the ways in which it is related to Figs. 1 to 7 and 14 The named embodiments are used as an additional safety element.

[0025] Figs. 6 and 7Each shows a side view of a third embodiment of the climbing console 1, wherein in Fig. 6 the hook 2 is hooked into the formwork part 3 and in Fig. 7 Hook 2 is secured in the casing part 3.

[0026] In this embodiment, the first surface 4c of the hook 2 and the second surface 4d of the formwork part 3, which interact when the hook 2 is subjected to tensile stress, are inclined in the insertion direction x of the hook 2. In other words, a lower region of the two surfaces 4c, 4d is located further away from the rear face 5 of the formwork part 3 in the insertion direction x than an upper region of both surfaces 4c, 4d. The locking effect is similar to that of the first embodiment of the climbing bracket 1 and the formwork part 3 and is therefore not described again. However, it should be noted that a combination of the first and third embodiments is also possible. Furthermore, in a combination of the two embodiments, or even in the third embodiment alone, the locking flap 8b and the groove 8a, or the area 8a of the upper edge of the hook 2, can also be used.

[0027] Fig. 8, 9 and 10Each shows a side view of a fourth, unclaimed embodiment of the climbing console 1 with a safety lever 7, wherein in Fig. 8 Hook 2 is in an intermediate position between the inserted position and the hooked position, in Fig. 9 the hook 2 is hooked into the formwork part 3 as well as in Fig. 10 The hook 2 is secured in the formwork part 3. In this embodiment, the locking lever 7 acts as a locking element for the hook 2, and the "cover" 15 of the formwork part 3 acts as a locking element for the hook 2 itself. This variant can also be used alone or in addition to the elements associated with Figs. 1 to 3 , 6 to 7 and 14 named embodiments are used.

[0028] The hook 2 thus features the locking lever 7 as a locking element, and the formwork part 3 features the ceiling 15 as a counter surface to the locking lever 7. The locking lever 7 is pivotable between a vertical position and an inclined or horizontal position. During the insertion of the hook 2 into the formwork part 3, the locking lever 7 is in the inclined or horizontal position, and after the hook is engaged, it is in the vertical position. In the vertical position, it prevents the hook 2 from detaching by abutting the counter surface 15 of the formwork part 3 when the hook 2 is moved upwards.

[0029] In one embodiment, the locking lever 7 is rounded at a rear lower edge facing the inlet opening 31 of the casing part 3 such that, during pivoting, the locking lever 7 rolls on this rounded edge, which in Fig. 8 as is evident.

[0030] When the hook 2 is inserted into the formwork part 3, the locking lever 7 is tilted in the opposite direction of insertion x, which can be done manually. However, this is not necessary, as the locking lever 7 tilts itself as soon as its upper section abuts the top edge of the opening 31. Once the hook 2 is inserted and lowered into the engaged position, the locking lever 7 straightens up because its lower edge is pressed against the support of the formwork part 3. The movement of the locking lever 7 is effected on the one hand by the rounded lower edge corner of the locking lever 7, which faces the opening 31, and on the other hand by the fastening 7a, 7b. The locking lever 7 is attached to the hook 2 by means of a pin 7a, which is located laterally or in the middle of the hook 2 and is slidable in an elongated hole 7b of the locking lever 7.The rounded edge corner allows the locking lever 7 to be pivoted into the angled position (see . Fig. 8 If the hook 2 is now pressed downwards into the hooked position, the front area of ​​the locking lever 7 is also pressed downwards via the pin 7a, whereby the locking lever 7 rolls down on the rounded edge corner and comes to rest with its lower edge on the support surface of the casing part 3.

[0031] It should be noted that in all embodiments of the climbing bracket 1, the hook 2 preferably rests on the bearing surface of the formwork part 3 when it is in the secured position.

[0032] Fig. 11 shows the side view Fig. 10where the hook 2 is engaged in the casing part 3. Here, a further embodiment of the locking lever 7 is used. In this embodiment, the locking lever 7 has a first spring 12, which is designed such that it pivots the locking lever 7 into the vertical position as soon as the hook 2 is engaged. Here, the first spring 12 is wrapped around the pin 7a and attached at one end to the body of the hook 2 and at the other end to the locking lever 7. The first spring 12 is designed such that it is tensioned in the inclined position of the locking lever 7 and assists its pivoting into the upright position.

[0033] It should be noted that in the embodiments according to Fig. 8, 9 , 10, 11 The locking lever 7 has a suitable height so that it can pivot within the casing part 3. In other words, in the upright position it has a certain distance from the opposite surface 15.

[0034] Figures 12 and 13 Each shows a side view of a fifth, unclaimed embodiment of the climbing console, wherein in Fig. 12 the hook 2 is inserted into the formwork part 3 and in Fig. 13 Hook 2 is secured in the casing part 3.

[0035] In this embodiment, the hook 2 has at least one lateral projection 17 as a locking element, and the formwork part 3 has a guide channel 17a as a locking element. The guide channel 17a is designed such that it receives the projection 17 of the hook 2 and guides the hook 2 from an insertion position to the secured position of the hook 2 in the formwork part 3, in which, when a force is applied to the hook 2 in a vertical or oblique direction, it abuts a wall of the guide channel 17a.

[0036] Figure 14Figure 1 shows a perspective view of a sixth, unclaimed embodiment of the climbing bracket 1 after the hook 2 has been secured in the formwork part 3. In this embodiment, the hook 2 or the frame 14 has at least one sliding rail 18 laterally as a securing element, and the formwork part 3 has an elongated channel 18a as a securing element. The sliding rail 18 is designed such that, after the hook 2 has been inserted into the formwork part 3, it can be pushed into the elongated channel 18a to an end position in which, when a force is applied to the hook 2 in a vertical or oblique direction, it abuts a wall of the elongated channel 18a. The procedure for securing the hook 2 in the formwork part 3 for the sixth embodiment is explained below. First, the hook 2 is inserted into the entry opening 31 as described above.The sliding rail 18, which is slidably attached to the hook 2 or the frame 14 by means of a holder 18b, remains outside the formwork part 3. The hook 2 is then moved into the engaged position, as already described for other embodiments. The sliding rail 18 is still outside the formwork part 3, but it is now aligned with the elongated channel 18a, as it has moved downwards with the hook 2. The sliding rail 18 is then pushed in the insertion direction x and enters the channel 18a, thus securing the hook 2 in the formwork part 3. The wedge 16a, which secures the hook 2 to the frame 14 (see figure 1), is also shown in this figure. Fig. 2 ) fixed.

[0037] Figure 15 and Figure 16 Figure 1 shows a side view of a seventh, unclaimed embodiment of the climbing console 1, in which a bar 9 is used as a safety element. Fig. 15Hook 2 is engaged in the formwork section 3 and bolt 9 is inserted into the climbing bracket 1. Fig. 16 The hook 2 is secured in the formwork part 3 and the bolt 9 is inserted into the formwork part 3. In this embodiment, the bolt 9 acts as a securing element above the hook 2, and the cover 15 of the formwork part 3 acts as a securing element for the hook 2 itself. This variant can also be used alone or in addition to the elements associated with Figs. 1 to 3 , 6 to 7 and 14 The named embodiments are used. The following explains the procedure for securing the hook 2 in the casing part 3 for the seventh embodiment. Two variants of the design of the bolt 9 are provided. First, the hook 2 is inserted into the entry opening 31 and brought into the engaged position.

[0038] In a first version, which in Figs. 15 and 16As shown, the bolt includes a foot 9a on which it rests on the hook 2. The foot 9a is mounted on the hook 2 so that it can slide towards and away from the opening 31. After the frame 14 is attached, the foot is clamped between the top of the frame 14 and the hook. When the hook 2 is inserted, the bolt 9 initially remains outside the casing part 3. Subsequently, the hook 2 is engaged, as already described for other embodiments, and the bolt 9 is pushed into the entry opening 31. The bolt 9 can be inserted either in the engaged position or only when the hook is in the final position corresponding to the secured position. This secures the hook 2 in the casing part 3. To unhook hook 2, the latch 9 is manually moved backwards so that it comes out of the formwork part 3, and hook 2 is pulled out of the formwork part 3 in the manner already described.

[0039] In a second variant, a second spring is provided for the bolt 9 (not shown), which connects the bolt 9 to the hook 2 or to the foot 9a and secures it in the Figs. 15 and 16 The positions shown are maintained. When the hook 2 is inserted into the entry opening 31, the bolt 9 is pushed backward as soon as it comes into contact with the ceiling 15. When the hook 2 moves from the inserted state to the engaged state, the second spring pushes the bolt 9 back into its upright position, thus securing the hook 2 in the formwork section 3, which in Fig. 16 as shown. To unhook hook 2, the bolt 9 is manually swung over and hook 2 is pulled out of the formwork part 3 in the manner already explained.

[0040] The climbing bracket described here, in conjunction with the formwork component, provides secure attachment to a wall. The focus here is on the occurrence of an upward external force acting on the bracket. This upward or oblique direction of force is the only direction of action that is particularly critical for causing the climbing bracket to detach from the formwork component. Such a force can occur on a construction site when material is lifted by a crane to / from the platform supported by the climbing bracket. In this situation, the material or parts of the crane can become stuck on the climbing bracket while the crane motor continues to operate and attempts to lift the stuck material further upwards. The present invention effectively addresses this problem through the improved climbing bracket and the improved formwork component.Despite the additional elements, the two parts are very easy and user-friendly to connect.

[0041] Although preferred embodiments of the invention have been described, it should be noted that the invention can be implemented in other ways within the scope of the following claims. Terms used in the description, such as "preferred," "in particular," "advantageous," etc., refer only to optional and exemplary embodiments.

Claims

1. Combination of a climbing bracket (1) for hooking up in a formwork part (3), with a formwork part (3), wherein the climbing bracket (1) has a frame (14) and a hook (2) displaceably mounted in the frame (14), wherein the hook (2) is hooked up in the formwork part (3) and is secured within the formwork part (3) against detachment from the formwork part (3), wherein the formwork part is inserted into a formwork to form a wall cavity and has an entry opening (31) to the outside, a closed rear side (5) and, in the lower part, a depression for receiving a part of the hook (2), characterized in that, for securing, the formwork part (3) and the hook (2) of the climbing bracket (1) each comprise at least one passive safety element (4a, 4b; 4c, 4d), wherein a respective securing element of the formwork part (3) engages with a respective securing element of the hook (2) during the action of a force on the hook (2) in a vertical or oblique upward direction in such a way that a detachment of the hook (2) from the formwork part (3) is preventable, wherein the hook (2) has a first surface and the formwork part (3) has a second surface cooperating with the first surface under tensile load of the hook (2), wherein - the hook (2) has a projection (4a) on the first surface and the formwork part (3) has a recess (4b) on the second surface as securing elements, and / or - the first surface (4c) of the hook (2) and the second surface (4d) of the formwork part (3), which interact when the hook (2) is subjected to tensile load, are inclined in the insertion direction (x) of the hook (2) in such a way that a lower region of the first and the second surface (4c, 4d) is further away from a vertical rear side (5) in an insertion direction (x), wherein the rear side is perpendicular to the insertion direction (x), of the formwork part (3) than an upper region of the first and second surfaces (4c, 4d).

2. Combination according to claim 1, wherein the recess (4b) is arranged such that when the climbing bracket is secured, the hook (2) with the projection (4a) remains blocked in the recess (4b) of the formwork part (3) during an action of a force on the hook (2) in the vertical or oblique upward direction.

3. Use of a climbing bracket (1) of the combination according to one of the claims 1 or 2 in the construction of structures made of concrete for hooking up in at least one wall cavity provided with a formwork part (3) of the combination according to one of the claims 1 or 2.

4. Use of a formwork part (3) of the combination according to one of the claims 1 or 2 as a lost element in a wall cavity.

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