Coil for a threaded insert
AssigneeLudwig Hettich Holding GmbH & Co. KG
InventorUlrich Hettich
Life of this patent
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Abstract
The present invention relates to a coil (10) for transmitting torque to a threaded insert sleeve with an external thread and/or for tapping a thread. The coil (10) comprises a radially outer profile for anchoring the coil (10) in a threaded insert sleeve and for transmitting a torque to the threaded insert sleeve and/or for tapping a thread. In addition, the coil (10) comprises a driving profile suitable for receiving a drive, which can engage in the driving profile in such a way that a torque can be transmitted from the drive to said coil (10) and that at the same time the drive limits or avoids any torsion of the coil (10).
Claims24
A coil for transmitting a torque to a threaded insert sleeve with an external thread and/or for tapping a thread, said coil comprising:
- a radially outer profile, which is provided for anchoring said coil in said threaded insert sleeve for transmitting the torque to said threaded insert sleeve and for tapping the thread, said radially outer profile comprising a plurality of outer projections in the form of tapping teeth arranged spaced apart from one another on an outer side of the coil, and
- a driving profile suitable for receiving a drive, which can engage in said driving profile in such a way that a torque can be transmitted from the drive to said coil and at the same time any torsion of said coil is limited or avoided,
- in which the driving profile comprises a plurality of recesses, wherein at least two recesses are spaced apart from one another along a strip of material by a length of one coil turn, so that said at least two recesses are aligned along a longitudinal axis.
A coil for transmitting a torque to a threaded insert sleeve with an external thread and/or for tapping a thread, said coil comprising:
- a radially outer profile, which is provided for anchoring said coil in said threaded insert sleeve for transmitting the torque to said threaded insert sleeve and for tapping the thread, said radially outer profile comprising a plurality of outer projections in the form of tapping teeth arranged spaced apart from one another on an outer side of the coil, and
- a driving profile suitable for receiving a drive, which can engage in said driving profile in such a way that a torque can be transmitted from the drive to said coil and at the same time any torsion of said coil is limited or avoided,
- in which the driving profile has a shape of a hexalobular socket, a polylobular socket or a polygonal socket.
A threaded insert which is suitable for inserting into a drilled hole and comprises:
- a threaded insert sleeve with an external thread, and
- a coil, said coil comprising:
- a radially outer profile, which is provided for anchoring said coil in said threaded insert sleeve for tapping a thread, and
- a driving profile suitable for receiving a drive, which can engage in said driving profile in such a way that a torque can be transmitted from the drive to said coil and at the same time any torsion of said coil is limited or avoided,
- wherein said coil is disposed at least partially in a leading half of said threaded insert sleeve, and is connected to said threaded insert sleeve in a positive fit via its radially outer profile such that a torque transmitted to said coil via the driving profile is transmitted to said threaded insert sleeve.
Dependencies are inferred from the claim text.