Hilti Aktiengesellschaft

Joachim Guenther

Thomas Blatz

Friedemann Moeller

Roland Meuer

Dragomir Ljubojevic

Klaus Nagelschmied

Bert Melzer

Franz Huber

Roland Mcuer

Klaus Nagelschmicd

A device () for a user to secure a workpiece () that is positioned on a substrate () during the processing of the workpiece () with a hand-held power tool. A stepping element () has a stepping surface () via which the user applies a holding force, and that also has a placement surface () for placing the device () onto the workpiece ().

Device for a user to secure a workpiece

A vacuum cleaner having a housing (), including a filter element () for separating out particles () that have been picked up and transported in an air stream (L) as well as a holding device for holding the filter element () in the housing (). The filter element () has at least one projecting holding section (). The holding device () has a contact surface and a holding surface between which the holding section () of the filter element () comes to rest when the filter element is in the installed state. The contact surface and the holding surface are each provided with a defined irregularity.

Vacuum cleaner

A hand-held power tool has a drive spindle () rotatable about a rotational axis (A) and provided at its free end with a clamping flange () and a locking thread (), a locking nut () tightenable on the locking thread () for securing a disc-shaped tool () between the clamping flange () of the drive spindle () and its clamping surface (), and a safety spring () located between the disc-shaped tool () and an inner recess () formed in the clamping surface () of the locking nut (), radially preloaded against the locking thread, and having at least one radial, outwardly projecting nose (), with the disc-shaped tool () having at least one, opening radially inwardly and axially extending groove () associated with the at least one nose ().

Hand-held power tool with locking nut

A hand-held power tool includes a drive spindle () rotatable about a rotational axis (A) and provided at its free end with a clamping flange () and a locking thread () having at least one thread undercut (), and a locking nut () tightenable on the locking thread () for securing a disc-shaped tool () between its clamping surface () and the clamping flange () of the drive spindle (), with the thread undercut () having an axial length that corresponds to at least an axial length of an inner thread () of the locking nut ().

A hand-held power tool includes a drive spindle () rotatable about a rotational axis (A), a clamping flange () provided at a free end of the drive spindle () and having at least one inner thread () that in a mounted condition of the clamping flange () on the drive spindle (), engages in a thread undercut () of the clamping flange (), a locking pin likewise provided at the free end of the drive spindle () and having a locking thread (), and a locking nut () tightenable on the locking thread () for securing a disc-shaped tool () between the clamping flange () and the clamping surface () of the locking nut (), with the clamping flange () having in its axial region between the disc-shaped tool () and an inner recess () of the locking nut () in which the centering collar () of the clamping flange () can be partially received at least one radial, outwardly projecting nose (), and with the disc-shaped tool () having at least one, opening radially inwardly and axially extending groove () associated with the at least one nose () of the clamping flange.

Growing community of inventors

Kaufering, Germany

Joachim Guenther