Device for axial displacement of a hole saw for a hand-held drill
AssigneeTalgø Teknologi AS
InventorTor Ole Talgø
Life of this patent
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Abstract
A device is for an axial displacement of a hole saw for a hand-held drill, wherein the hole saw is coupled to the drill by a drive shaft, and the hole saw and an actuator are rotatably connected and positioned in a housing with a coupling for the drill. The actuator has an outer threaded portion which corresponds to an inner threaded portion in the housing so that the actuator and the hole saw are displaced axially along the drive shaft when the actuator rotates relative to the housing. The actuator is connected to the drive shaft via a slip clutch arranged to transfer and reduce a reduced torque from the drive shaft to the actuator.
Claims5
A device for an axial displacement of a hole saw for a hand-held drill, wherein;
- the hole saw is without a center drill bit, and is coupled directly to the drill via a drive shaft which on a first end is arranged for connection to the drill and on a second end is arranged for connection to the hole saw for thereby providing a direct transfer of a torque and an rpm from the drill to the hole saw;
- the hole saw and an actuator are rotatably connected and positioned within a housing;
- the device is provided with a coupling for the drill;
- the actuator comprises an outer threaded portion which corresponds to an inner threaded portion in the housing so that the actuator and the hole saw are displaced axially along the drive shaft when the actuator rotates relative to the housing;
- wherein
- the actuator is connected to the drive shaft via a slip clutch arranged to transfer a reduced rpm and torque from the drive shaft to the actuator, and
- the slip clutch encircles the drive shaft.
Dependencies are inferred from the claim text.