Hilti Aktiengesellschaft

Hilti Aktiengeschaft

Hans Rupprecht

Paul Deutschenbaur

Oliver Ohlendorf

Rolf Spangenberg

Rudolf Reitberger

Xaver Hanslmeier

Franz Hoyss

Eduard Sever

Georg Holzmeier

Armin Below

Helmut Specht

Leopold Von Keudell

Manfred Jakob

Sonya Wörz

Diep Chau-Ngoc

Norbert Burtscher

Berno Nigg

John Van Taack-trakranen

A flange unit for a filter unit for positioning in a water treatment device, the water treatment device including a water reservoir and a suction head. The flange unit includes a base plate having a central recess for accommodating a filling piece of the suction head, a connecting unit for detachably connecting the flange unit to an inner side of the water reservoir, a closure element for closing the recess, and a handle unit for detaching the connecting unit from the flange holding device and for carrying the filter unit.

Flange arrangement for a filter unit

A device for retaining at least one container, in particular a case, on a transport unit, including a retaining bracket for insertion into a recess of the container, whereby the container is retained by the retaining bracket and is fastened on the transport unit, the retaining bracket including a first and second bearing pin; and a first bearing element for accommodating the first bearing pin and a second bearing element for accommodating the second bearing pin, the first and second bearing pins being rotatable in the particular bearing element around a shared axis. The retaining bracket is insertable into the recess of the container. The first and second bearing elements each include a recess, so that the first and second bearing pins are removable from the particular bearing element when the retaining bracket is located in a removal position.

Mounting

A method for controlling a water supply system for use with a machine tool is disclosed. The water supply system includes a housing with an interface for supplying electrical energy, a water tank, a line, a pump device, a current-measuring device, a water-pressure-measuring device, and a control device. The method includes activating the pump device if the machine tool is connected to the interface and the motor current of the machine tool exceeds a predetermined threshold value, and deactivating the pump device if the machine tool is connected and the motor current undershoots a predetermined threshold value; or activating the pump device if the machine tool is not connected and the water pressure in the line undershoots a predetermined threshold value and deactivating the pump device if the machine tool is not connected and the water pressure exceeds a predetermined threshold value.

Automatic control of assemblies of a water supply system

A grinding tool, in particular a concrete grinding tool, comprising a drive spindle () driven by a motor in the working rotational direction (A) having a tool receptacle () at its free end. The tool receptacle () is provided with a flange () non-rotationally disposed on the drive spindle () and a nut () that can be threaded onto the free end () for clamping the tool () against the flange (). The tool receptacle () further comprises an anti-rotation device () that prevents a rotation of the tool () relative to the drive spindle () in the working direction of rotation (A) of the drive spindle ().

Tool receptacle for a grinding tool

A dust protection cover for a rotary grinding tool and having a base ( ) fixedly securable with the tool housing ( ) a substantially circular cover body ( ) connectable with the base ( ) for completely circumferentially covering the grinding disc ( ) securable at the free end of the output shaft of the tool drive motor, and displaceable between a operational position, in which the cover body completely covers the grinding disc, and a release position in which the cover body exposes a portion of a grinding disc circumference, and a connection element(s) projecting from a side of the base ( ) adjacent to the tool housing for securing the cover body ( ) to the base ( ) in the release position of the cover body.

Dust protection cover for a rotary grinding tool

A masonry slitting apparatus includes a housing (1) containing a drive unit (2) for a slitting tool (4) and a trolley (3) to which the housing is pivotally connected by a rotary bearing (6) located in a first end region of the housing and trolley. The trolley (3) has a locking rail projecting toward the housing in a second end region with an adjustable depth stop (18) located on the locking rail (17). The housing (1) has a locking pawl (12) cooperating with the locking rail (17) and the pawl is actuated by a locking switch (11) in a handle (9) on the housing (1). The depth stop (18) has a locking arm (28) for securing the housing in a working position.

Masonry slitting apparatus

A masonry-slitting apparatus has a housing (1) containing a drive unit (2) for a slitting member (4), and a trolley (3) on which the housing (1) is pivotally mounted about a rotary bearing (6) located in a first end region of the housing. The housing (1) has a first handle (10) in the first end region and a second handle (9) in a second end region at the opposite end from the first end region. Each handle (9, 10) has a substantially cylindrically shaped gripping surface (12, 13) extending parallel to one another and disposed at right angles to a disk plane of the slitting member (4). An electric switch (5) is located in the gripping surface (13) of the first handle (10) and a locking switch (11), actuating an arresting element (8), is located in the gripping surface (12) of the second handle (9).

A working tool holder for a drilling or chiseling device includes a holder sleeve with an axially extending conically shaped section within a holder opening or bore. A working tool to be secured in the holder sleeve, has a tool shaft with a conically shaped section to engage the conically shaped section in the holder opening. Grooves are formed in the tool shaft to receive inwardly projecting ridges in the holder opening. The tool shaft has recesses to receive the pins mounted in the holder sleeve. The tool shaft and an actuating sleeve extending around the holder sleeve each have connecting threads for securing the working tool in the holder.

Working tool holder for a drilling or chiseling device

A tool holder for drilling and chiselling tools includes a receiving sleeve forming a bore with a conically shaped section for receiving a conically shaped shank on a drilling or chiselling tool. Shoulders extending in the axial direction of the sleeve are formed on the surface of the conically shaped section for interengagement with grooves in the drilling or chiselling tool shank so that the sleeve can rotate the tool. Locking elements in the form of axially elongated pins are mounted in the receiving sleeve so that the pins extend transversely of the sleeve axis and tangentially of the conically shaped bore section. The pins are spring biased toward the bore section and are displaceable generally radially relative to the bore. The pins are arranged to seat within an annular groove in the shank of the tool.

Tool holder for drilling and chiselling tools

A stand for a drilling tool includes a support column with a carriage movably mounted on the column. A carrier member for a drilling tool can be secured to the carriage with support sections on the carrier member in engagement with support surfaces on the carriage. One of these support surfaces is provided by the eccentric circumferential surface on an eccentric peg which is rotatably mounted in the carriage. The support section engageable with the peg has a catch projection which prevents displacement of the carrier member from the carriage when the eccentric surface on the peg is aligned opposite the corresponding support section on the carrier member. The projection extends outwardly from the support section by an amount at least equal to the eccentricity of the circumferential surface of the peg.

Growing community of inventors

Munich, Germany

Hans Rupprecht