DE102021121380A1 - shock clamp - Google Patents

Abstract

Joint clamp (23, 30, 51, 71, 81) for arranging at contact joints of two stand elements (11, 12, 21, 22, 52, 54, 84, 85) of a framework, comprising: at least one first receiving area (31, 32), which is arranged to be arranged at least partially over a first post element (11, 12, 21, 22, 52, 54, 84, 85); at least one second receiving area (31, 32) which is set up to be arranged at least partially over a second stand element (11, 12, 21, 22, 52, 54, 84, 85); at least one first clamping element (24, 25, 33, 34, 55, 60) which is arranged on the first receiving area (31, 32) and which is set up to hold the at least one first stand element (11, 12, 21, 22, 52 , 54, 84, 85) at the first receiving area (31, 32); at least one second clamping element (24, 25, 33, 34, 55, 60) which is arranged on the second receiving area (31, 32) and which is set up to hold the at least one second stand element (11, 12, 21, 22, 52 , 54, 84, 85) at the second receiving area (31, 32); wherein the clamping elements (24, 25, 33, 34, 55, 60) are set up to align the stand elements (11, 12, 21, 22, 52, 54, 84, 85) to one another by clamping and the stand elements (11 , 12, 21, 22, 52, 54, 84, 85) in a mutually aligned position in the respective receiving area (31, 32).

Description

field of invention

The present invention relates to a butt clamp for arranging contact butts of two stand elements of a scaffolding, a scaffolding system and a use of such a butt clamp in a supporting structure and/or a façade scaffold.

background

Scaffolding is a temporary building construction of variable length, width and height. They are assembled at their place of use from scaffolding components to work platforms, facade scaffolding, shoring, for example for assembly or formwork work. In order to increase the height and/or width of a scaffold, vertical elements and/or horizontal elements are connected to one another, as a result of which the scaffold grows in height and/or width. The vertical elements are connected to one another at their contact joints by means of connecting elements, so-called joint bolts. The task of the impact bolt includes the safe transfer of loads between the vertical elements.

In this context, it has now emerged that there is a need to further improve such a connection, in particular there is a further need to provide a cost-effective and stable connection. It is therefore an object of the present invention to provide an improved connection, in particular it is an object of the present invention to provide the most cost-effective and stable impact clamp possible for the connection.

These and other objects that may be mentioned or recognized by a person skilled in the art upon reading the following description are solved by the subject matter of the independent claims. The dependent claims develop the central idea of the present invention in a particularly advantageous manner.

Summary of the Invention

A joint clamp according to the invention for arranging at contact joints of two stand elements of a frame comprises: at least one first receiving area which is set up to be arranged at least partially over a first stand element; at least one second receiving area configured to be at least partially positioned over a second stand member; at least one first clamping element, which is arranged on the first receiving area and which is set up to clamp the at least one first stand element on the first receiving area; at least one second clamping element which is arranged on the second receiving area and which is set up to clamp the at least one second stand element on the second receiving area; wherein the clamping elements are set up to align the stand elements with one another by clamping and to clamp the stand elements in a position aligned with one another in the respective receiving area.

The term impact clamp is to be understood broadly in the present case and includes devices that are set up to connect two stand elements mechanically via a clamping force. The term contact butt is to be understood broadly in the present case and includes a mechanical connection of two end faces of two stator elements. The connecting surface between the two end faces can fully overlap or only partially overlap. The end faces of the stand elements can be the same size or different sizes. The end faces can be ring-shaped, for example. The end faces of the stand elements are preferably of the same size. In the present case, the force is transmitted via a surface pressure via the end faces. In the present case, the term stand element is to be understood broadly and means vertical support elements that are set up to absorb loads. The vertical support elements include, for example, hollow cylinders. The stand elements are also set up to accommodate connecting elements for attaching crossbars. The term scaffolding is to be understood broadly in the present case and includes building structures that are set up to be extended in length, width and/or height. The scaffolding can be shoring or facade scaffolding. The scaffolding can provide a working plane. In the present case, the frames preferably have a modular structure for any extension. The term receiving area is to be understood broadly in the present case and includes areas or sections of a device that are set up to receive vertical stands partially, preferably their ends. The receiving areas include hollow bodies with a completely or partially closed lateral surface. The hollow body is, for example, a hollow cylinder or a rectangular tube. The term clamping element is to be understood broadly in the present case and includes mechanically pronounced structures that are set up to exert a clamping force on at least one stand element. The clamping force can be provided, for example, via a screw connection, a spring or a wedge. The clamping element can have any geometric shape, for example a cylindrical shape, a wedge-shaped shape, a flat, concave or convex shape. The clamping element can be of any materials. For example, made of mild steel, stainless steel or tool steel, etc.

The invention is based on the finding that the transmission of force in the area of the contact joints is essentially influenced by the alignment and the surface contact of the two end faces of the stand elements that are in contact or are opposite one another. The surface contact and the orientation thus influence the stiffness (i.e. bending, compressive, torsional, tensile stiffness) of the connection or the superordinate structure. The device according to the invention enables a targeted alignment of the end faces (i.e. centering each other) and fixation via clamping elements. In this way, the rigidity can advantageously be increased and the alignment and fixation can also be guaranteed over the erection period, i.e. during operation of the scaffold. This also allows the payload to be significantly increased. Furthermore, load limitations due to contact shocks can be avoided or reduced. Furthermore, a rigid connection for the contact butt according to the invention is advantageously made possible. Overall, the present invention enables stiffening and stabilization of the contact joint or associated framework.

The receiving areas are preferably designed in such a way that full-surface contact can be provided at the contact joint plane between an end face of the first post element and an end face of the second post element. The end face of a stand element is usually an annular face. The two stand elements are usually additionally connected to one another via a bolt. For example, a centric alignment of the two end faces on top of one another can be made possible via a common bearing surface of the first and second receiving area, which allows and/or ensures full-area contact of the end faces at the contact joint. The rigidity and load-bearing capacity of the contact joint can advantageously be increased as a result of the full-surface contact.

The clamping elements preferably each comprise at least one wedge element for aligning and fixing the stand elements. The term wedge element is to be understood broadly in the present case and includes all structural elements with a wedge shape that can provide a clamping effect. The wedge element is characterized by self-locking due to a correspondingly selected wedge angle. This enables quick assembly and reproduced assembly of the wedge elements. For example, the wedge element can be brought into position by hitting it with a hammer, as a result of which the upright or the end face of the upright is aligned and clamped or fixed. For disassembly, for example, a hammer blow can also be used to loosen the wedge connection.

Preferably, the clamp members each include three wedge members for aligning and fixing the post members, preferably two wedge members are wedged on the first post member and a third wedge member is wedged over a contact at the butt plane on the second post member. As a result, the two stand elements can advantageously be fixed one above the other at their two end faces. An even clamping force can be applied over a larger area thanks to three wedge elements distributed over a length. Furthermore, the choice of three wedge elements favors a stabilization of the alignment of the post element in the device and thus a stabilization of the alignment of the contact butt. This can have a beneficial effect on the stiffness and load-bearing capacity of the contact joint.

Preferably, the three wedge elements are connected to one another on a first end face of the wedge element by means of a first fastening element and are each connected to one another on a second end face of the wedge element by means of a second fastening element, with the first and second end faces essentially lying opposite one another. By attaching the wedge elements to one another, assembly can advantageously be simplified by the wedge elements being able to be moved or positioned simultaneously, for example. For example, the three wedge members may be connected end-to-end with a pin member or plate or pin member/plate combination. For example, the three wedge elements and one fastening element can be made integral.

Preferably, the three wedge elements are arranged at different distances from each other. The different distances, for example twice the distance between the first and second wedge element than between the second and third wedge element, can advantageously enable stability when receiving a stand element in the shock clamp, especially in the receiving area of the shock clamp.

Preferably, either the first or the second clamping element is set up to clamp the first and the second stand element. In the present case, the alignment and fixing of both stand elements can advantageously be made possible via the first clamping element. About the second clamping element can advantageously white afterwards an additionally increased stability can be made possible.

The three wedge elements are preferably arranged in the first and second clamping element in such a way that clamping of the first post element with two wedge elements each is made possible, regardless of whether the first receiving area or second receiving area is arranged above the first post element. This enables constant stability of the contact joint while at the same time simplifying assembly due to a reduction in the possibility of errors.

Preferably, the wedge elements enable the shock clamp to be freely arranged over the first and/or second post element in a first position and to clamp the shock clamp to the first and/or second post element in a second position. The first position corresponds to an unkeyed movable disposition of the shock clamp over the post members. The second position corresponds to a wedged arrangement of the shock clamp over the post members.

The wedge elements are preferably set up to be brought into engagement on a peripheral surface of the first and/or second stand element during the transition from the first position to the second position and to move the first and/or second stand element into the mutually aligned position of the respective receiving area .

The abutment clamp preferably has a geometry such that in the second position an at least partially planar contact between the stand elements and the abutment clamp is made possible. The surface contact can be made possible, for example, by a recess or a bulge in the hollow cross section of the impact clamp. The surface contact can advantageously reduce the surface pressure and thus increase the load and rigidity. Furthermore, this can increase the stability.

The three wedge elements of the first or second clamping element are preferably moved individually or together as a unit.

According to a further aspect of the invention there is provided a scaffolding system comprising: at least one impact clamp as described in detail above; and at least one first stand member; and at least one second post member.

The scaffolding system is preferably a shoring and/or a facade scaffolding. In the present case, the term shoring means scaffolding that is set up to temporarily absorb loads for a structure, since this structure is not yet viable. In the present case, the term facade scaffolding means scaffolding that is set up to allow people (e.g. craftsmen) temporary access to a building.

A final aspect relates to the use of a joint clamp, as described in more detail above, in a shoring and/or facade scaffolding.

character list

• 1 einen Kontaktstoß aus zwei Ständerelementen als Stoßbolzenverbindung;
• 2 einen Kontaktstoß samt montierter Stoßklemme nach einer Ausführungsform;
• 3 eine Stoßklemme nach einer Ausführungsform in detaillierter Auflösung;
• 4 einen Kontaktstoß samt montierter Stoßklemme nach einer Ausführungsform in Schnittdarstellung;
• 5 ein Klemmelement nach einer Ausführungsform;
• 6 einen Kontaktstoß samt montierter Stoßklemme in einer zweiten Position nach einer Ausführungsform in Schnittdarstellung; und
• 7 einen Kontaktstoß samt montierter Stoßklemme nach einer zweiten Ausführungsform mit montierten Befestigungshaken.

A detailed description of the figures is given below

• 1 a contact butt from two stand elements as a butt bolt connection;
• 2 a contact butt and mounted butt clamp according to one embodiment;
• 3 a shock clamp according to an embodiment in detailed resolution;
• 4 a contact butt together with a mounted butt clamp according to one embodiment in a sectional view;
• 5 a clamping element according to an embodiment;
• 6 a contact butt together with the mounted butt clamp in a second position according to one embodiment in a sectional view; and
• 7 a contact shock together with a mounted shock clamp according to a second embodiment with mounted fastening hooks.

1 shows a contact butt 10 as a butt bolt connection. In this case, a first stand element 11 and a second stand element 12 are connected to one another. In the present case, fastening elements 16 and 17 are additionally attached to the stand elements 11 and 12 and are set up in order to fasten crossbars (not shown) to the stand elements. The contact butt is part of a framework, such as a shoring (not shown). An impact bolt 15 protrudes from the second stand element 12 in the upper area. The second stand element 12 has an annular surface 13 . A further stand element (not shown) can be pushed onto this impact bolt 15 . The impact bolt 15 is thus also used to connect two stand elements. The contact butt connection 14 between the stand elements 11 and 12 also has a butt pin (not visible). The contact surface in the vertical direction between stand elements 11 and 12 has an annular surface (cf. annular surface 13 of second stand element 12).

2 shows a contact shock 20 together with the mounted shock clamp 23. The contact shock 20 in turn comprises a first stand element 21 and a second stand element 22. In contrast to FIG 1 the shock clamp 23 is presently arranged over the ends of the stand elements 21 and 22 . The impact clamp 23 has a first clamping element 24 and a second clamping element 25 .

3 shows a shock clamp 30 of an embodiment in a detailed view without stand elements, which are shown in 2 is also shown. The shock clamp 30 has a first receiving area 31 which is designed to be arranged at least partially over a second stand element (12, 22). The shock clamp also has a second receiving area 32 which is designed to be arranged at least partially over a first stand element (11, 21). The impact clamp 30 also has a first clamping element 33 which is arranged on the first receiving area 31 and which is set up to clamp the at least one second stand element (12, 22) on the first receiving area 31. The impact clamp 30 has a second clamping element 34 which is arranged on the second receiving area 32 and which is set up to clamp the at least one first stand element (11, 21) on the second receiving area 32. The clamping elements 33 and 34 are set up to align the stand elements (11, 12, 21, 22) with one another by clamping and to clamp the stand elements (11, 12, 21, 22) in a position aligned with one another in the respective receiving area 31 and 32 . In the present case, the clamp elements 33 and 34 each have three wedge elements 35, 36, 37, 38, 39 and 40 for aligning and fixing the stand elements (11, 12, 21, 22). The three wedge elements 35 , 36 , 37 are connected to each other on a first face of the wedge element 33 by means of a plate 41 and on a second face of the wedge element 33 by means of a pin element 48 . The same applies here to the clamping element 34 with plate 42. The impact clamp 30 has two bulges 43 and 44. Due to the bulge 44, a partially surface contact between the stand elements and the impact clamp 30 can be made possible. The impact clamp 30 has a plurality of recesses (not visible) on a bulge opposite the bulge 44 , which are designed to accommodate the clamp elements 33 and 34 . The shock clamp 30 also has a recess 46 in the present case, which is designed to attach a hook to one of the stand elements 11, 12, 21, 22 (for example the first stand element 11, 21). The shock clamp 30 can be pushed over the hook through the recess 46 without the interfering contour of the hook impairing the assembly.

4 shows a contact butt 50 together with the mounted butt clamp 51 in a sectional view. The contact butt 50 includes a first post member 52, a second post member 54, and a mounting bolt 53. As shown in FIG. The three wedge elements 56, 57 and 58 of the second clamping element 55 are arranged at different distances from each other. In the present case, the first clamping element 55 is set up to clamp the first stand element 52 and the second stand element 54 . The receiving areas of the butt clamp 51 are designed in such a way that there is full-surface contact in the contact butt plane 90 at the contact butt 50 between an end face of the first stand element 52 and an end face of the second stand element 53 . As a result of the clamping of the wedge elements, the first stand element 52 and the second stand element 54 are pressed against the inner wall 59 of the impact clamp 51 and are thereby aligned and clamped.

5 12 shows a clamping element 60 according to one embodiment. In the present case, the clamping element 60 comprises three wedge elements 61, 62, 63 which are arranged at a distance from one another. The wedge elements 61, 62, 63 are connected via a pin 64 on one side. The wedge elements 61, 62, 63 are connected by a plate 65 on a second side opposite to the first. By connecting the wedge elements to one another on both sides, the clamping element 60 can be brought into the first or second position with one movement.

6 shows a contact butt 70 together with the mounted butt clamp 71 in a second position according to an embodiment in a sectional view. In the present case, the section goes through the shock clamp 71, the upper second stand element 72 and a shock bolt 74. The clamping wedge 73 of the clamping element is in a second position in which the stand element 72 is pressed against the curved inner wall 75 and 76 of the first receiving area of the shock clamp 71 becomes. In this position, due to the existing geometry, in particular due to the coordinated diameters of the receiving area of the shock clamp 71 and the stand element 72, there is essentially a planar contact between the stand element 72 and the shock clamp 71. The geometric shape of the shock clamp and the stand element can reproducibly support the stand element are aligned and fixed, since the clamping wedge 73 always reproducibly presses the stand element 72 into the bulge 77 of the impact clamp 71, whereby the position of the stand element 72 is statically determined.

7 shows a contact joint 80 together with a mounted shock clamp 81 over a first stand element 84 and a second stand element 85 with fastening hooks 83 welded to the first stand element 84. The shock clamp 81 has a recess 82 in the lower area. The recess 82 makes it possible to push the shock clamp 81 over a fastening hook 83 which is arranged on a lower first stand element 84 during assembly. This enables assembly despite interfering contours on the first stand element 84.

However, the present invention is not limited to the preceding preferred exemplary embodiments, as long as it is covered by the subject matter of the following claims. In addition, it is pointed out that the terms "comprising" and "having" do not exclude other elements or steps and the indefinite articles "a" or "a" do not exclude a plurality.

Reference List

10,

contact bump

20, 50, 70, 80

Contact butt together with mounted butt clamp

11, 12, 21, 22, 52, 53, 72, 84, 85

stand element

13

contact surface

14

contact butt joint

15, 53, 74

bolt

16, 17

Fasteners for crossbars

23, 30, 51, 71, 81

shock clamp

24, 25, 33, 34, 55

clamping element

31, 32

recording area

35, 36, 37, 38, 39, 40, 56, 57, 58, 73

wedge element

41, 42, 65

plate

48

Pen

43, 44, 77

bulge

46, 82

recess

75, 76

curved inner wall

83

mounting hook

90

Contact butt level (with full-surface contact)

Claims (15)

Butt clamp (23, 30, 51, 71, 81) for arranging at contact butts of two stand elements (11, 12, 21, 22, 52, 54, 84, 85) of a framework, comprising: at least one first receiving area (31, 32) which is set up to be arranged at least partially over a first stand element (11, 12, 21, 22, 52, 54, 84, 85); at least one second receiving area (31, 32) which is set up to be arranged at least partially over a second stand element (11, 12, 21, 22, 52, 54, 84, 85); at least one first clamping element (24, 25, 33, 34, 55, 60) which is arranged on the first receiving area (31, 32) and which is set up to hold the at least one first stand element (11, 12, 21, 22, 52 , 54, 84, 85) at the first receiving area (31, 32); at least one second clamping element (24, 25, 33, 34, 55, 60) which is arranged on the second receiving area (31, 32) and which is set up to hold the at least one second stand element (11, 12, 21, 22, 52 , 54, 84, 85) at the second receiving area (31, 32); whereby the clamping elements (24, 25, 33, 34, 55, 60) are set up to align the stand elements (11, 12, 21, 22, 52, 54, 84, 85) to one another by clamping and the stand elements (11, 12, 21, 22, 52, 54, 84, 85) in a mutually aligned position in the respective receiving area (31, 32). shock clamp (23, 30, 51, 71, 81). claim 1 , wherein the receiving areas (31, 32) are designed in such a way that full-surface contact at a contact joint plane (90) between an end face of the first post element (11, 12, 21, 22, 52, 54, 84, 85) and an end face of the second stand element (11, 12, 21, 22, 52, 54, 84, 85) can be provided. Impact clamp (23, 30, 51, 71, 81) according to one of the preceding claims, wherein the clamping elements (24, 25, 33, 34, 55, 60), each having at least one wedge element (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) for aligning and fixing the stand elements (11, 12, 21, 22, 52, 54, 84, 85). Impact clamp (23, 30, 51, 71, 81) according to any one of the preceding claims, wherein the clamp elements each have three wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) for Alignment and fixing of the stand elements (11, 12, 21, 22, 52, 54, 84, 85) include, preferably two wedge elements (39, 40, 56, 57, 62, 63) on the first stand element (11, 21, 52, 84) are wedged and a third wedge element (38, 58, 61) over a contact is wedged at the butt plane (90) on the second post member (12, 22, 54, 72, 85). A shock clamp (23, 30, 51, 71, 81) according to any one of the preceding claims, wherein the three wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) are attached to one each first end face of the wedge element (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) are connected to one another by means of a first fastening element (41, 42) and are each connected to a second end face of the wedge element ( 35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) are connected to one another by means of a second fastening element (48), the first and second end faces lying essentially opposite one another. A shock clamp (23, 30, 51, 71, 81) according to any one of the preceding claims, wherein the three wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) are of different spacing are arranged from each other. Impact clamp (23, 30, 51, 71, 81) according to one of the preceding claims, wherein either the first or the second clamping element (24, 25, 33, 34, 55, 60), the first and the second stand element (11 , 12, 21, 22, 52, 54, 84, 85) to pinch. A shock clamp (23, 30, 51, 71, 81) according to any one of the preceding claims, wherein the three wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) in the first and are arranged in the second clamping element (24, 25, 33, 34, 55) in such a way that the first stand element (11, 12, 21, 22, 52, 54, 84, 85) can be clamped with two wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) regardless of whether the first receiving area (31, 32) or the second receiving area (31, 32) is above the first stand element (11, 12, 21, 22, 52, 54, 84, 85). A shock clamp (23, 30, 51, 71, 81) according to any one of the preceding claims, wherein the wedge members (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) are in a first position allow the shock clamp (23, 30, 51, 71, 81) to be freely arranged over the first and/or second stand element (11, 12, 21, 22, 52, 54, 84, 85) and in a second position to clamp the Impact clamp (23, 30, 51, 71, 81) with the first and/or second stand element (11, 12, 21, 22, 52, 53). shock clamp (23, 30, 51, 71, 81). claim 9 , wherein the wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) are arranged on a peripheral surface of the first and/or second position in the transition from the first position to the second position post member (11, 12, 21, 22, 52, 54, 84, 85) to be engaged and the first and/or second post member (11, 12, 21, 22, 52, 54, 84, 85) into the mutually aligned position of the respective receiving area (31, 32) to move. shock clamp (23, 30, 51, 71, 81). claim 9 , wherein the impact clamp (23, 30, 51, 71, 81) has a geometry such that in the second position there is at least partially surface contact between the stand elements (11, 12, 21, 22, 52, 54, 84, 85) and of the butt clamps (23, 30, 51, 71, 81) is made possible. shock clamp (23, 30, 51, 71, 81). claim 9 , wherein the three wedge elements (35, 36, 37, 38, 39, 40, 56, 57, 58, 61, 62, 63) of the first or second clamping element (24, 25, 33, 34, 55, 60), respectively be moved individually or together as a unit. Scaffolding system, comprising: at least one impact clamp (23, 30, 51, 71, 81) one of Claims 1 until 12 ; and at least one first post member (11, 12, 21, 22, 52, 53); and at least one second stand member (11, 12, 21, 22, 52, 53). scaffolding system Claim 13 , wherein the scaffolding system is a shoring and / or a facade scaffolding. Use of a shock clamp (23, 30, 51, 71, 81) according to one of Claims 1 until 12 in a shoring and/or facade scaffolding.

Images