A coupling member includes a hook-shaped coupling part arranged to be hooked into a gripping part of an upright and a locking arrangement switchable between a locking position and a release position. Further, the locking arrangement includes a pivotally attached first clamping part and a wedge-shape
A coupling member includes a hook-shaped coupling part arranged to be hooked into a gripping part of an upright and a locking arrangement switchable between a locking position and a release position. Further, the locking arrangement includes a pivotally attached first clamping part and a wedge-shaped locking part, which is slidable between a locking position and a release position. The wedge-shaped locking part is arranged to push the first clamping part towards the upright and the gripping part by means of wedge action. Moreover, the first clamping part comprises two transversally spaced apart side parts which jointly define a cavity there between. The first clamping part is arranged externally on the hook-shaped coupling part, and is arranged partly within the cavity. Further, each of the side parts includes fastening means for pivotal attachment of the first clamping part to the hook-shaped coupling part.
대표청구항▼
1. Coupling member for coupling scaffolding elements to uprights, said coupling member having a longitudinal direction and a height direction, said coupling member comprising: a hook-shaped coupling part arranged to be hooked into a gripping part of said upright; anda locking arrangement switchable
1. Coupling member for coupling scaffolding elements to uprights, said coupling member having a longitudinal direction and a height direction, said coupling member comprising: a hook-shaped coupling part arranged to be hooked into a gripping part of said upright; anda locking arrangement switchable between a locking position, in which said coupling member may be secured to said upright, and a release position, in which said coupling member may be released from said upright,wherein said locking arrangement comprising:a first clamping part that is pivotally attached to said hook-shaped coupling part about a pivoting axis, and arranged to, in said locking position, interact with at least one of said upright and said gripping part for tightening coupling between said coupling member and said upright; anda wedge-shaped locking part which is slidable between a locking position and a release position, said wedge-shaped locking part being arranged to, during motion from said release position to said locking position, by means of wedge action push said first clamping part towards said upright and said gripping part for interaction with at least one thereof, andwherein said first clamping part comprises two transversally spaced apart side parts which jointly define a cavity therebetween;said first clamping part is arranged externally on said hook-shaped coupling part, such that said hook-shaped coupling part is arranged at least partly within said cavity;each of said two side parts comprises a fastening device for said pivotal attachment of said first clamping part to said hook-shaped coupling part,upon tightening of the coupling member, a first forward facing support surface of the hook-shaped coupling part is arranged to interact with a first rearward facing tightening surface of said wedge-shaped locking part to achieve said wedge action,said first forward facing support surface is positioned forward of said pivoting axis, andthe first rearward facing tightening surface of said wedge-shaped locking part is a surface of an outer peripheral flange portion of the wedge-shaped locking part with increased thickness in a thickness direction of the wedge-shaped locking part compared with the thickness of a central portion of the wedge-shaped locking part, the thickness direction being the direction perpendicular to a primary plane of the wedge-shaped locking part extending both in the longitudinal direction and the height direction of the coupling member, andthe outer peripheral flange portion of the wedge-shaped locking part with increased thickness comprises a forward side flange portion located at an outer peripheral portion of the wedge-shaped locking part on a forward side of the wedge-shaped locking part, a rear side flange portion located at an outer peripheral portion of the wedge-shaped locking part on a rear side of the wedge-shaped locking part, and a top side flange portion connecting the forward side flange portion and the rear side flange portion and located at an outer peripheral portion of the wedge-shaped locking part on a top side of the wedge-shaped locking part. 2. Coupling member according to claim 1, wherein said hook-shaped coupling part comprises a resting surface which in a use position faces downwards and being arranged to interact with said gripping part of said upright, and said pivoting axis in the use position is arranged below said resting surface of said hook-shaped coupling part. 3. Coupling member according to claim 1, wherein each of said two transversally spaced apart side parts comprises at least one tightening surface for said interaction with at least one of said upright and said gripping part. 4. Coupling member according to claim 1, wherein the first clamping part further comprises a connector part that is fixedly connected with each of said transversally spaced apart side parts, such that a single rigid first clamping part is formed. 5. Coupling member according to claim 4, wherein the first clamping part further comprises a wedge rest part that is fixedly connected to said connector part, and said wedge rest part comprises a resting surface for the wedge-shaped locking part to rest on in an unlocked position of the coupling member. 6. Coupling member according to claim 1, wherein said wedge-shaped locking part is arranged to, in said release position, be supported by a portion of said first clamping part. 7. Coupling member according to claim 1, wherein said locking arrangement further comprises a second clamping part, which in a use position is arranged on an upper portion of said hook-shaped coupling part. 8. Coupling member according to claim 7, wherein said second clamping part is slidable between a locking position and a release position, said wedge-shaped locking part being arranged to, during motion from said release position to said locking position, by means of wedge action push said second clamping part towards said upright for interaction therewith. 9. Coupling member according to claim 7, wherein said second clamping part comprising two side portions, and said second clamping part is slidably coupled through said two side portions to a pair of external recesses provided on the hook-shaped coupling part. 10. Coupling member according to claim 7, wherein said first and second clamping parts are separately mounted on said hook-shaped coupling part, and free from direct mutual contact. 11. Coupling member according to claim 7, wherein said second clamping part is slidably coupled to said hook-shaped coupling part. 12. Coupling member according to claim 7, wherein said second clamping part is slidably coupled to an external surface of said hook-shaped coupling part. 13. Coupling member according to claim 1, wherein said wedge-shaped locking part comprises an elongated hole, which extends essentially in a longitudinal direction of said wedge-shaped locking part. 14. Coupling member according to claim 1, wherein each of said transversally spaced apart side parts is formed of a metal plate. 15. Coupling member according to claim 1, wherein said hook-shaped coupling part is formed of two hook-shaped side parts that are joined together. 16. Coupling member according to claim 15, wherein said wedge-shaped locking part is arranged partly between said two hook-shaped side parts of said hook-shaped coupling part, and said wedge-shaped locking part is arranged partly within said cavity of said first clamping part. 17. Coupling system comprising a coupling member according to claim 1, and an upright having at least one gripping part, wherein said gripping part exhibits a resting surface which in a use position faces upwards, and the hook-shaped coupling part exhibits a resting surface which in the use position faces downwards, and the hook-shaped coupling part is arranged to be supported by interaction between the said resting surfaces. 18. Coupling system according to claim 17, wherein said gripping part exhibits a second tightening surface present on an outer periphery of said gripping part, which second tightening surface in the use position faces at least partly downwards, and said first clamping part comprises at least one tightening surface, which in a locked position of said locking arrangement faces at least partly upwards, such that said coupling system may be tightened and secured in the locked position by interaction between said second tightening surface of said gripping part and said tightening surface of said first clamping part.
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이 특허에 인용된 특허 (13)
Ellingboe, Eric Andrew; Schneider, Daniel R.; Leppert, Kerry W., Clamp.
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