Hilti Aktiengesellschaft

Hilti Aktiengsellschaft

Thomas Blatz

Joachim Guenther

Friedemann Moeller

Roland Meuer

Klaus Nagelschmied

Karin Groth

Lionel Barbier

Klaus Nagelschmicd

Roland Mcuer

A clamping device () for the axial (AR) clamping of a tool disk () on a flange () associated with a drive spindle () of a hand-held power tool (), wherein the clamping device () has a screw (), which is to be screwed into an internal thread () of the drive spindle () to securely clamp the tool disk (), wherein the screw () is mounted in a coupling module () of the clamping device (), wherein the coupling module () has an internal contour () which is paired or can be paired positively with the drive spindle () for conjoint rotation in the circumferential direction (U).

Clamping device and hand-held power tool

A method for controlling a machine tool-having an operating switch and a lock switch including:

Switch for machine tool and switching logic

An operating device () for a power tool, including at least one first and second switching element (), the first switching element () being settable to a first and a second mode, and the second switching element () being settable to a first and a second mode, the first switching element () including at least one first signaling means () for the particular signaling of the first or second mode, and the second switching element () including at least one second signaling means () for the particular signaling of the first or second mode. The operating device is designed in such a way that the second switching element () is settable from the first mode to the second mode only when the first switching element () is set from the first mode to the second mode.

Switch device for a power tool

A hand-held power tool guiding device is disclosed. The device includes a receptacle element for receiving the power tool, a remote control device for operating the power tool, and a guiding and support device, which is designed to be adjustable with an adjusting lever. The adjusting lever has a handle which is configured to be rotatable relative to the adjusting lever around an axis of rotation.

Hand-held power tool guiding device

A hand-held power tool guiding device and method is disclosed. The device includes a receptacle element for receiving the power tool, a remote control device for operating the power tool, and a transmission device for transmitting the movement of the remote control device to the power tool. The transmission device has a switch actuator and a connecting element, where the switch actuator is adjustable into a standby position during insertion of the power tool into the receptacle element.

Hand-held power tool guiding device and method

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 cover device for a power tool with at least one disc-shaped working tool (), includes first and second cover parts () and a locking mechanism () for releasably pivotally positioning the second cover part () relative to the first cover part () and having a locking element () provided on one of the first and second cover parts () and engageable with a counter-locking element () provided on another of the first and second cover parts (), and an actuation member () pivotally supported at a pivot point () on the one of the first and second cover parts () and having an actuation section () and a locking section () extending at an angle from the actuation section (), with the locking element () being provided at a free end of the locking section ().

Cover device for a power tool

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.

A motorized power tool includes an output shaft () including a tool receptacle () for receiving a disc-shaped tool () and having an outer thread with a constant outer diameter (D) and that forms a first securing element () for a locking element (), a centering section () adjoining the tool receptacle () and extending beyond a radial projection of the tool receptacle, and a second securing element () provided at the free end () of the output shaft () for receiving an attachment element () for securing a shaft extension () to the output shaft ().

Power tool with output shaft

A hand-held power tool for rotating a working tool disc () includes a removable protection hood () for partially covering the working tool disc () during operation, and a clamping device () for securing the protection hood () relative to a power tool head () and having a clamping member () that limits partially a substantially cylindrical region () for receiving an attachment collar, and a clamping element () provided at opposite ends () of the clamping member () for displacing the clamping device () into its locking position and having a locking region () projecting into the receiving region () of the clamping member () at least in the locking position of the clamping device ().

Hand-held power tool with protection hood

A power tool, in particular a circular saw, for eccentrically a rotatable working tool and, in particular, a circular saw blade, includes a roller device () supported on a tool housing () and having at least two roller pairs () each having a first roller () and a second roller () engageable with opposite sides of the working tool (), with at least one of the rollers () of at least one roller pair () being rotatable by a tool motor () which is located in the housing (), for driving the working tool (), and a pivot device () for pivoting the first rollers () together relative to the second rollers () between a release position in which the working tool () is brought in or removed from the roller device (), and a drive position in which a forcelocking connection between the at least one of the rollers () of the at least one roller pair () and the working tool () is established.

Power tool with an eccentrically driven working tool

A quick lock nut () for positive friction locking securement of a disc-like tool () to an external thread () on a working spindle () driven about an axis of rotation (A), having an associated inner threaded part () and a manually displaceable tensioning means () for axial clamping and release of the inner threaded part () relative to the tool (), wherein at least one flat spring () extending essentially parallel to the axis of rotation (A) is associated with the inner threaded part () on the tool side, by means of which the inner threaded part () can be axially resiliently tensioned with the tool ().

Growing community of inventors

Kaufering, Germany

Thomas Blatz