초록 ▼

A coupling device including a first tightening part and a second tightening part. The first tightening part includes a tightening surface and is moveable about a pivot axis. The second tightening part is also moveable about the pivot axis. The first tightening part and the second tightening part are

A coupling device including a first tightening part and a second tightening part. The first tightening part includes a tightening surface and is moveable about a pivot axis. The second tightening part is also moveable about the pivot axis. The first tightening part and the second tightening part are translatable between a release position and a lock position, such that after said first tightening part is moveable about the pivot axis and into the locked position, the second tightening part is moveable about the pivot axis into said lock position.

대표청구항 ▼

The invention claimed is: 1. A device for coupling scaffolding elements to uprights in a scaffold, the device having both a gripping part and a hook-shaped part, the gripping part adapted for being connected to the upright and having a first gripping surface which faces the upright and extends at a

The invention claimed is: 1. A device for coupling scaffolding elements to uprights in a scaffold, the device having both a gripping part and a hook-shaped part, the gripping part adapted for being connected to the upright and having a first gripping surface which faces the upright and extends at a distance from the upright, the hook-shaped part having at least one second gripping surface which faces away from the upright, the hook-shaped part arranged to be hooked into the gripping part and to be supported by the gripping part by interaction means between the first and the second gripping surfaces, the device having a locking element which is switchable between a locking position and a release position, the device comprising a first tightening part arranged in the hook-shaped part so as to be pivotable about a pivoting axis, a second tightening part, which is shaped as a locking wedge being pivotable about the pivoting axis, the first tightening part and the second tightening part being part of the locking element. 2. The device according to claim 1, wherein the first tightening part includes a protruding portion having a forward tightening surface, a rear tightening surface and a supporting surface. 3. The device according to claim 1, wherein the gripping part includes a first resting surface and the hook-shaped part includes a second resting surface, the first resting surface and the second resting surface adapted to support the hook-shaped part which in the locking position faces downwards, the hook-shaped part being arranged to be supported by interaction between the first and the second resting surface. 4. The device according to claim 2, wherein the second tightening part includes an elongate hole through which the pivoting axis extends. 5. The device according to claim 4, wherein the protruding portion of the first tightening part is arranged to support the second tightening part in the release position. 6. The device according to claim 1, further comprising a third tightening part adapted to be brought against the upright by movement of the second tightening part into the locking position. 7. The device according to claim 6, wherein the third tightening part includes a fork-shaped portion with a recess, the recess positioned about the pivot axis. 8. A device for coupling scaffolding elements to uprights in a scaffold, the device having both a gripping part and a hook-shaped part, the gripping part adapted for being connected to the upright and having a first gripping surface which faces the upright and extends at a distance from the upright, the hook-shaped part having at least one second gripping surface which faces away from the upright, the hook-shaped part arranged to be hooked into the gripping part and to be supported by the gripping part by interaction means between the first and the second gripping surfaces, the device having a locking element which is switchable between a locking position and a release position, the device comprising a first tightening part arranged in the hook-shaped part so as to be pivotable about a pivoting axis, a second tightening part, which is shaped as a locking wedge being pivotable about the pivoting axis, the first tightening part and the second tightening part being part of the locking element; wherein the first tightening part includes a protruding portion having a forward tightening surface, a rear tightening surface and a supporting surface; and wherein the second tightening part includes an elongate hole through which the pivoting axis extends. 9. The device according to claim 8, wherein the protruding portion of the first tightening part is arranged to support the second tightening part in the release position. 10. A device for coupling scaffolding elements to uprights in a scaffold, the device having both a gripping part and a hook-shaped part, the gripping part adapted for being connected to the upright and having a first gripping surface which faces the upright and extends at a distance from the upright, the hook-shaped part having at least one second gripping surface which faces away from the upright, the hook-shaped part arranged to be hooked into the gripping part and to be supported by the gripping part by interaction means between the first and the second gripping surfaces, the device having a locking element which is switchable between a locking position and a release position, the device comprising a first tightening part arranged in the hook-shaped part so as to be pivotable about a pivoting axis, a second tightening part, which is shaped as a locking wedge being pivotable about the pivoting axis, the first tightening part and the second tightening part being part of the locking element; and a third tightening part adapted to be brought against the upright by movement of the second tightening part into the locking position, wherein the third tightening part includes a fork-shaped portion with a recess, the recess positioned about the pivot axis. 11. A coupling device comprising: a first tightening part having a tightening surface, said first tightening part moveable about a pivot axis; a second tightening part moveable about said pivot axis, said first tightening part and said second tightening part translatable between a release position and a lock position, wherein after said first tightening part is moved about said pivot axis and into said lock position, said second tightening part is moveable about said pivot axis into said lock position; and a third tightening part operable between said release position and said lock position, wherein said movement of said second tightening part from said release position to said lock position causes said third tightening part to move from said release position to said lock position; wherein said third tightening part includes a fork-shaped portion having a recess which is arranged about said pivot axis. 12. The coupling device according to claim 11, wherein said first tightening part includes a first surface and a second surface, said first surface adapted to engage a scaffold when said first tightening part is in said lock position, said second surface engagable with said second tightening part when said first tightening part is in said lock position. 13. The coupling device according to claim 11, further comprising a first resting surface and a second resting surface, said first and second resting surface adapted to engage a portion of a scaffold. 14. The coupling device according to claim 11, wherein said second tightening part is wedge-shaped, further wherein said first tightening part and second tightening part, each include a hole through which said pivot axis extends. 15. The coupling device according to claim 11, wherein said first tightening part includes a protruding portion arranged to underlie said second tightening part when said first and second tightening parts are in said release position. 16. The coupling device according to claim 11, wherein said pivot axis includes a pivot pin.