Hilti Aktiengesellschaft

Bruno Werder

Josef Schittl

Walter Nessler

Michael Selb

Urs Zogg

A flange device and to a method for fastening a saw blade to a drive spindle of a sawing device. Among other things, the flange device includes a nut, which is arranged in a movable manner in an interior of a flange body, wherein, in a closed state of the flange device, the nut surrounds a central screwing device, which is guided in the drive spindle, for the purpose of fastening. A system for fastening a saw blade to a drive spindle of a sawing device, wherein the system has a flange device, and a sawing device and a central screwing device. The drive spindle of the sawing device can be pressed in the direction of the flange device by a spring, such that, in the closed state, it can be received by an interior of the nut of the flange device.

System, method and flange device for fastening a saw blade to a drive spindle of a sawing device

Wall saw having a locking device (). A saw blade flange () of the wall saw is adjustable by the locking device () between a locked state and an unlocked state, wherein, in the locked state, the saw blade flange () is connected to the drive spindle () for rotation therewith, and, in the unlocked state, is adjustable in relation to the drive spindle (). In the unlocked state of the saw blade flange, the drive spindle is blocked in the direction of rotation of the saw blade and is designed to be rotatable about the axis of rotation in a counter direction directed counter to the direction of rotation.

Wall saw having a locking device

A device () for adjusting the blade guard holder () arranged on the saw arm () of a wall saw (), having a coupling element () is provided, whereby a first end of the coupling element () is joined to the blade guard holder (), and, in a locked state, a second end is joined to the saw arm ().

Device for adjusting the blade guard holder of a wall saw

A rail-guided power tool () has at least one carrying handle () and one device head () arranged on a guide carriage (). The guide carriage () can be moved by an adjustment mechanism () from a locked position&#x2014;in which the guide carriage () is engaged with a guide rail () via at least one adjustable guide roller ()&#x2014;into a released position&#x2014;in which the at least one adjustable guide roller () is at a distance from the guide rail (). The power tool () also has an unlocking mechanism () including an actuator (), a transmitter () and an unlocking device (), whereby the unlocking mechanism () is configured in one piece.

Growing community of inventors

Gamprin, Liechtenstein

Bruno Werder