Husqvarna Ab

David Grennhag

Andreas Jönsson

Pär Carlsson

Torbjörn Almqvist

Lars Freidlitz

Jakob Thordsson

Peter Liljenfeldt

Robert Vidlund

Andreas Jonsson

Andreas JÖNSSON

The present disclosure relates to a tool holding arrangement (″) comprising a rotatable shaft (″) which is at least connectable to a tool driving power source () and comprises a first shaft thread ('). The tool holding arrangement () comprises a thread insert (′) that comprises a first insert thread (′), adapted to engage the first shaft thread (′) so as to form a first thread arrangement (′). The thread insert (′) comprises a second insert thread () that is adapted to engage a tool thread () of a tool holding device () that is arranged to bescrewed onto the second insert thread () so as to form a second thread arrangement (), the first thread arrangement (′) having a higher pitch than the second thread arrangement ().

Tool holding arrangement, thread insert, rotatable shaft and drill unit

The present disclosure relates to a drill tool (), such as a core drill tool (), comprising a motor unit () and a gear unit (). The motor unit () comprises an electric motor () and a motor drive shaft () that extends along a first longitudinal axis () from the electric motor () and protrudes out of a motor unit housing () via a motor exit aperture () in a housing end part () and comprises a drive shaft gear (). The drive shaft gear () is adapted to propel a drill shaft () that extends along a second longitudinal axis () and comprises a tool holder () that is adapted to hold a tool. The housing end part () comprises a wall part () arranged transversally to the longitudinal axes () and is adapted to close the gear unit cavity () and to separate the electric motor () from the gear unit cavity ().

Drill unit with a motor unit and a gear unit

A gearbox for a rack () and pinion () linear transmission, said gearbox further including&#x2014;a reduction gear train (-) having at least a first (), a second (), a third (), and a fourth gear wheel (), where the fourth gear wheel is the pinion () for rotary engagement with the rack (); a rotary input shaft () operatively connected to the gear train (-) to effect a linear relative movement between the rack () and the pinion (); and an intermediate shaft () on which the first () and the second () gear wheel are fixed; the third gear wheel () being fixed on the input shaft (), the fourth gear wheel () being journalled to enable it to rotate freely on the input shaft () and constituting the pinion (), and the first gear wheel () and the fourth gear wheel () being in constant meshing engagement with each other.

Gearbox for a rack and pinion linear transmission and drillstand including a gearbox and a rack

A spacer () for spacing a tool such as a drill motor from a tool stand such as a drill stand, the spacer () comprising a spacer body () and a locking member (), the spacer body () having first () and second () opposing faces, the locking member () extending from a first end () thereof adjacent to the first face () to a second end () thereof adjacent to the second face (), the locking member () being able to slide relative to the spacer body() along a direction from the first end () to the second end (), the first end () and the second end () each being provided with at least one locking surface(), wherein the spacer () is arranged such that at application of a locking force each locking surface () of one of the first and second ends () transmits the locking force to each locking surface () of the other of the first and second ends ().

Growing community of inventors

Göteborg, Sweden

David Grennhag