Hilti Aktiengesellschaft

Hilti Akitengesellschaft

Markus Frommelt

Tilo Dittrich

Gerhard Ehmig

Norbert Heeb

Peter Jochum

Thomas Sperrfechter

Uwe Hilmert

Norbert Pfister

Stefan Boenig

Robert Jakob

Franz Buechel

Jens Neumann

Franz B&uuml;chel

Ferenc Lor

Peter Herwig

Norbert Burtscher

Michael Sproewitz

Stefan Bönig

Franz Büchel

Hermann Kuel

Zsolt Schaller

Michael Spröwitz

The invention relates to a device for fastening a first object to a second object, said device comprising a first load section having a first load-engaging means, a driving section defining a driving direction and a sealing element for creating a seal between the device and the second object, the sealing element having a width perpendicular to the driving direction and a height in the driving direction.

Fastening device

A mounting device for securing plate-shaped elements () on a mounting rail () includes first () and second holding members () forming, together a space () for receiving a plate-shaped element (), a fastening member () extending through the first () and the second () holding member and connectable with an anchoring element () provided on the mounting rail () for securing the mounting device () on the mounting rail (), and at least one resilient element () provided between the first holding member (), which is displaceable relative to the second holding member, and the second holding member () for spacing the first and second holding members () from each other.

Mounting device for securing plate-shaped elements

A fastener driving tool for an insulation material plug that anchored with a fastener in the substrate has a first drive shaft and a second drive shaft. The first drive shaft has a shank extending along a longitudinal axis having a first rotary carrier for the fastener at a first end and that has a second rotary carrier second end. The second drive shaft has a hollow shank with a third carrier means for the insulation material plug at a first end. A coupler is provided that can be disengaged by axial pressure and arranged at a distance from the first end. The coupler has locking elements that engage into recesses in order to transfer a torque from the first drive shaft to the second drive shaft. Grooves guide the locking elements are adjacent to a recess and, extend helically along the circumference.

Fastener driving tool for an insulation material plug

An explosion-power operated setting tool for driving fastening elements in a structural component includes a setting piston () displaceably arranged in the guide chamber () of a piston guide () arranged, at least partially, in the tool housing (), a resetting device () having a resetting member () for returning the setting piston () in its initial position () after completion of a setting process, and a spring () for resiliently biasing the resetting member () in a direction of its initial position, and a damping device () for the spring ().

Explosion power-operated setting tool

A setting tool for driving fastening elements and including a setting piston () axially displaceably arranged in the hollow chamber () of a piston guide (), and a piston stop device () for the setting piston (), arranged in setting direction end region of the hollow chamber () and having a damping element () supported against a stop (), and a stop member () adjoining the damping element () in a direction of the hollow chamber () and operationally connectable with the piston band (), and having a cylindrical bushing () for the piston stem (), with the bushing () having an inner diameter (D) that amounts to from 70% to 90% of a size of the maximal outer diameter (D) of the prison band that has a conical surface engageable with the inner surface of the bushing.

Setting tool

A piston holder for a drive piston () of a setting tool and having a circumferential adjusting surface () inclined toward a central axis () thereof so that a diameter of the adjusting surface () increase toward a rear, with respect to a setting direction () of the setting tool, end of the drive piston (), with the piston holder including contact elements () engageable with the adjusting surface (), and a spring () for biasing the contact elements into engagement with the adjusting surface ().

Holder for a drive piston of a setting tool

A holder for a drive piston ( ) of a setting tool, and including a return element ( ) having a first end ( ) that applies pressure to the drive piston ( ), and a second end ( ) spaced from the first end ( ), and axial and radial stop elements ( ) fixedly securable in the setting tool and against which the second end ( ) of the return element ( ) is displaceable and elastically deformed upon displacement of the drive piston ( ) in the setting direction ( ).

A piston holder for drive piston ( ) of a setting tool and including at least one friction member for applying pressure to a circumferential surface of the drive piston and having an adjusting surface ( ) remote from the drive piston ( ) and rising toward a rear, in a setting direction of the setting tool, end of the drive piston, and a pressure element ( ) stationary with respect to an axial direction of the drive piston ( ) and which is always in a pressure contact with the adjusting surface ( ).

A high pressure gas-operated setting tool, and including a driving piston (21, 41, 61, 81) displaceable in a piston guide (7, 27, 47, 67) and having a stem (8, 28, 48, 68) and a head (9, 29, 49, 69), and a return member surrounding the stem (8, 28, 48, 68) and arranged between a stop (17), provided on the piston guide (7, 27, 47, 67) and facing in a direction opposite to a setting direction, and a front, in the setting direction, end face (18, 38, 58, 78) of the head (9, 29, 49, 69), with the return member being formed as a hollow cylindrical structural member of an elastic material and having a plurality of openings (12, 32, 34, 52, 72) which alternate, in a longitudinal direction, with layers of the elastic material.

An explosive powder charge operated setting tool includes an axially extending piston guide (4) for a driving piston (6) and a retaining device (9) for the driving piston. The driving piston (6) has an axially extending shank (7) terminating in a head (8). The retaining device (9) has at least one radially displaceable ball (11) bearing against a conically-shaped inner surface of an annular spring washer (10) laterally enclosing the ball, and the ball is displaceable to a limited extent parallel to the axial direction of the piston guide (4) in a holding part (12) of the piston guide (4) open towards the shank (7) of the driving piston (6). The leading end of the driving piston has at least one circumferentially extending recess (13) which cooperates with the ball (11) of the retaining device (9).

Explosive powder charged operated setting tool

An explosive powder charge operated setting tool includes a driving piston (1) positioned in an axially extending piston guide (4) with a base surface (5) at a trailing end of the piston guide. A spacer (2) is located on the trailing end surface of the piston (1) and projects axially from its trailing end surface. The spacer (2) has a stop face (3) extending perpendicularly of the piston guide axis with a surface area smaller than the area of the base surface (5) against which it contacts.

Explosive powder charge operating setting tool

An explosive powder charge operated setting tool contains a channel (7) located between an inner piston guide (2) for a piston (1) and an outer housing part (6). At the rear end of the tool, the channel (7) continues in a carrier (3) and can be in communication with a cartridge receptacle (4) in the carrier (3). In its front region, the channel (7) is connected via a first opening (2c) in the piston guide (2) with a guide bore (2a) for the piston (1). Towards the rear end of the channel (7) there is a valve arrangement for forming a propellant gas storage space connected through the first opening (2c) to the guide bore (2a). Propellant gases within the storage space are compressed by the piston (1) driven in the setting direction and, after completion of the driving or setting procedure, serve to return the piston (1) back into its rear starting position by expansion of the storage space gases. After the driving operation, a second opening (3a) communicating with the ambient atmosphere vents the space rearwardly of the piston (1) so that the piston (1) can move without interference back into the rear starting position and, in addition, any residual gases can escape through the second opening into the ambient atmosphere.

Explosive powder charge operated setting tool

An explosive powder charge operated setting tool has a guide channel (9) for strip-shaped cartridge clips with feed members (10) and a restraining member (15) extending into the transverse cross-section of a guide channel (9) for the cartridge clips. Blocking parts (13, 14) are located at the insertion end region of the guide channel (9). The blocking parts (10, 11) are displaced outwardly from one another out of the guide channel (9) by insertion bevels (8c, 8d) on the end of the cartridge inserted first into the guide channel, so that the cartridge clip (8) can be pushed further into the guide channel (9) until it reaches the feed member (10) or the restraining member (15).

Cartridge clip for setting tool

Powder charge operated setting tool includes a barrel (11) and a closing or breech member (17), axially displaceable within a housing 1. Stops (3a, 17a) and shoulders (8b, 11e) cooperating with each other are provided in the housing (1) and on the barrel (11) as well as on the closing member (17) which limit displacement of the barrel (11) and, after an additional displacement travel, the displacement of the closing member (17) counter to the setting direction. As a result a free space is formed between the barrel (11) and the closing member (17) which permits feeding of propellant charges (15), especially in magazines, perpendicularly to the axis of the barrel.

Powder charge operated setting tool

A portable setting device for driving fastening elements (4) through a structural member (B) has a muzzle part (1) mounted on and extending outwardly from a housing (2). The muzzle part (1) has a receiving region (5a) in a barrel (5) for a fastening element (4) in position ready to be driven. A feeler (47) is positioned on and extends in the driving direction outwardly from a leading end of the muzzle part (1). When the leading end of the feeler (47) is displaced rearwardly flush with the leading end of the muzzle part (1) the fastening element driving operation can be carried out. A pivotally mounted locking lever (50) is arranged to block the rearward displacement of the feeler (47) when there is not a fastening element (4) in the receiving region (5a). Accordingly, the setting device can not be operated unless a fastening element (4) is present in the receiving region (5a).

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Schaan, Liechtenstein

Markus Frommelt