Grid beam system for slab formwork
US-12546127-B2 · Feb 10, 2026 · US
US11988002B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11988002-B2 |
| Application number | US-201916979511-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 6, 2019 |
| Priority date | Mar 9, 2018 |
| Publication date | May 21, 2024 |
| Grant date | May 21, 2024 |
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A supporting device for the construction industry. Said device has a fixing element which rests against a side wall and is fixed at a fixing point of the side wall. Said device also has a cantilever which is connected to the fixing element and, when the fixing element is in the fixed state, projects from the side wall such that a load element can rest against a bearing point of a bearing element of the cantilever. The load element can now be displaced in a displacement direction substantially parallel to the side wall relative to the cantilever and, when the load element rests against the bearing element of the cantilever, the cantilever is coupled to the load element such that a displacement force component acts on the cantilever in the displacement direction when the load element is displaced, said displacement force component resulting in a torque on the cantilever.
Opening claim text (preview).
The invention claimed is: 1. A supporting device for the construction industry, comprising: a fixing element, designed to rest against a side wall and to be fixed to a fixing point of the side wall; a cantilever, which is connected to the fixing element and protrudes from the side wall when the fixing element is in the fixed state such that a load element can bear against a bearing point of a bearing element of the cantilever, wherein the load element can be moved with respect to the cantilever in a movement direction that is substantially parallel to the side wall, and which cantilever is coupled to the load element when the load element bears against the bearing element of the cantilever such that a movement force component acts on the cantilever in the movement direction due to a movement of the load element, which leads to a torque on the cantilever by means of a lever arm that reaches from the fixing point to the bearing point; and at least one rotation-reducing element, which is connected at one end to the cantilever and is designed to rest against the side wall by means of a different end when the load element bearing against the cantilever moves in order to counteract the torque on the cantilever. 2. The supporting device as per claim 1 , wherein the rotation-reducing element has a length from one end to the other end that is configured for reducing a rotational movement of the cantilever due to the torque on the cantilever such that the cantilever is prevented from folding or pivoting away around the fixing point. 3. The supporting device as per claim 2 , wherein the rotation-reducing element has a length from one end to the other end that is configured for reducing a rotational movement of the cantilever due to the torque on the cantilever such that the cantilever is prevented from folding or pivoting away about a first pivot axis, which is perpendicular on the side wall and comprises the fixing point, and/or about a second pivot axis, which lies in a plane of the side wall and comprises the fixing point. 4. The supporting device as per claim 1 , wherein the rotation-reducing element is designed as a support wing having an elongate shape in the form of: a solid body, or a hollow body having a tubular profile. 5. The supporting device as per claim 1 , wherein, when the fixing element is in the fixed state, the rotation-reducing element extends away from the cantilever substantially in the movement direction and/or an additional rotation-reducing element extends away from the cantilever in a direction that is substantially opposite the movement direction. 6. The supporting device as per claim 1 , wherein, when the fixing element is in the fixed state, one end of the rotation-reducing element/an additional rotation-reducing element is connected to an end portion of the cantilever, which end portion faces the side wall. 7. The supporting device as per claim 1 , wherein, when the fixing element is in the fixed state, rotation-reducing element an additional rotation-reducing element comprises a recess on a side of the rotation-reducing element/an additional rotation-reducing element that faces the side wall such that a wedge can be arranged between the rotation-reducing element/additional rotation-reducing element and the side wall so as to be guided by the recess, at least in part, such that, when the fixing element is in the fixed state, the wedge is pressed against the side wall in order to brace the supporting device. 8. The supporting device as per claim 1 , wherein an other end of a rotation-reducing element/additional rotation-reducing element protrudes relative to a side of the fixing element, which faces the side wall, by a protrusion in the direction of the side wall in a plane that is perpendicular to the movement direction such that, when the fixing element is in the fixed state, the protrusion is pressed against the side wall and the supporting device is. 9. The supporting device as per claim 1 , wherein the bearing element of the cantilever is connected to the fixing element when the fixing element is in the fixed state so as to be rotatable around a substantially horizontal first rotary shaft that extends substantially in parallel with the side wall. 10. The supporting device as per claim 9 , wherein an other end of a rotation-reducing element/additional rotation-reducing element is formed by a bearing element having a bearing surface that faces the side wall when the fixing element is in the fixed state, wherein the bearing surface is curved concentrically to the first rotary shaft of the bearing element of the cantilever in a plane that is perpendicular to the movement direction in the direction of the side wall such that, when the bearing element of the cantilever is oriented substantially horizontally and at different positive or negative inclination angles of the side wall with respect to the vertical in a plane that is perpendicular to the movement direction, the side wall forms a tangent on the bearing surface that faces the side wall. 11. The supporting device as per claim 10 , wherein the bearing surface is serrated, having teeth that run in the movement direction and are oriented in the direction of the side wall when the load element bearing against the cantilever moves, wherein the teeth are configured to act as spikes when they rest against the side wall. 12. The supporting device as per claim 11 , wherein the other end of the rotation-reducing element/additional rotation-reducing element protrudes relative to a side of the fixing element, which faces the side wall, by a protrusion in the direction of the side wall in a plane that is perpendicular to the movement direction such that, when the fixing element is in the fixed state, the protrusion is pressed against the side wall and the supporting device is braced, wherein the protrusion is formed by the teeth. 13. The supporting device as per claim 10 , wherein the bearing element is connected to the cantilever so as to be horizontally moveable in a plane that is perpendicular to the movement direction when the fixing element is in the fixed state. 14. The supporting device as per claim 9 , wherein the cantilever comprises a first support element in addition to the bearing element, wherein the bearing element is connected to the fixing element at one end so as to be rotatable about the first rotary shaft and at the other end to the first support element so as to be rotatable around a substantially horizontal second rotary shaft that extends substantially in parallel with the side wall when the fixing element is in the fixed state, the end of which first support element that faces the side wall being connected to the fixing element so as to be rotatable around a substantially horizontal third rotary shaft that extends substantially in parallel with the side wall when the fixing element is in the fixed state. 15. The supporting device as per claim 14 , wherein the bearing element is connected at the other end to a second support element so as to be rotatable about the substantially horizontal second rotary shaft that extends substantially in parallel with the side wall when the fixing element is in the fixed state, the end of which second support element that faces away from the bearing element is connected to the first support element by means of a substantially horizontal additional rotary shaft that extends substantially in parallel with the side wall, wherein a third support element is connected at one end to the end of the second support element that faces away from the bearing element and at the other end to the first rotary shaft, wherein the side wall i
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