Hilti Aktiengesellschaft

Hilti Aktiengesllschaft

Hans-Joerg Rieger

Ralf Meixner

Josef Plattner

Guenther Veik

Marco Balter

David Plattner

A deflection roller () for a deflection roller package () of a wire saw (), having a wheel (), a pivot bearing () and a sealing element (). The wheel () has a raceway () along the periphery thereof for guiding a saw wire () of the wire saw (). The pivot bearing () is coaxially inserted in the wheel (). An outer sleeve () protrudes from a lateral surface () of the wheel (). An inner sleeve () protrudes from a lateral surface opposite the one lateral surface (). A radius () of the inner sleeve () is smaller than a radius () of the outer sleeve (). The sealing element () is placed on the outer sleeve () or inserted into the inner sleeve ().

Deflection roller, deflection roller package and wire saw

A system includes a power tool and a suction device that is connected to the power tool via a suction hose. The power tool is drivable into a wall or into a substrate by a negative pressure produced by the suction device. A method includes driving the power tool into the wall or into the substrate by using the negative pressure produced by the suction device that is connected to the power tool via the suction hose.

System and method for driving a power tool into a substrate using a negative pressure produced by a suction device

A pivotable wire deflectorfor a saw wireof a wire sawhas a deflection roller, a pivot jointand a clamping and spreading mechanism. The defection rollerhas a running groovefor guiding the saw wireof the wire saw. The pivot jointhas a rotary bearing block with a cylindrical receptacle, and a tubewhich is arranged so as to be rotatable in the cylindrical receptacle, wherein the deflection rolleris attached to the one of rotary bearing blockor tube. A clampis fastened to the rotary bearing blockand arranged so as to enclose the tube. A levercan be moved manually between a first position and a second position.

Wire deflector and wire saw

A carriage () for a wall saw that includes a saw head and a motor-driven feed unit with a guide slide and a feed motor. The carriage is made up of a base frame () with a supporting frame () and a receiving plate (), a guide frame () with a handle (), and a chassis () with a first axle (), a second axle (), and at least three wheels (). At least one wheel () of the chassis () is designed to be connectable to a gearwheel () of the guide slide () in a force- and torque-transmitting manner with the aid of a connection device.

Carriage for a wall saw

A protection device for a rope saw assembly () includes at least two, telescopically displaceable relative to each other, cover members () having each a circular cross-section, an extending along a longitudinal axis receiving space () for the saw rope (), and a longitudinally extending opened slot (), and provided each with a securing device () located on one end () of each of the cover members () for securing a respective cover member () to a respective deflection roller () of the rope saw assembly ().

Protection device for a rope saw assembly

A hand-held power tool for driving a cutting or grinding working tool () includes a running gear () having a roller () and a support section () for supporting the roller (), and a locking device () for locking the roller () against rotation relative to the support section ().

Hand-held power tool

A deflection device for a rope saw assembly, includes a deflection roller (); a stationary protective cover () surrounding art least some regions of the deflection roller (); and at least one cover member () pivotally arranged on the protective cover () surrounding at least some regions of the deflection roller, and displaceable along a path radially spaced from the axle () of the deflection roller ().

Deflection device for a rope saw assembly

A hand-held power tool for driving a working tool () includes a drive belt (), first and second arms () longitudinally displaceable relative to each other and carrying respective deflection rollers () of the drive belt (), a belt tensioning device () located between the first and second arms () and including a spring () preloaded against the first arm (), and a displaceable pressure piston () located between the spring () and the second arm ().

Growing community of inventors

Thueringen, Austria

Hans-Joerg Rieger