Abstract: The protection system is used especially for the protection against a fatal effect of vertical accelerations triggered by a landmine on the passengers of an armored vehicle. For this, the sitting unit consisting of a seat body (7) and a backrest (8) is held movable in vertical direction and is coupled with an end area (15) of a longitudinally variable damping device (11), whose other end (13) is connected to the roof (4) of the vehicle (2) through a carrying equipment (6). In addition, the sitting unit is carried with vertical distance from the vertical guide (18) in a lower guide path (19) transversally directed so that the sitting unit executes both a downward as well as a tilting movement relative to the vehicle together with a passenger (3) during loading through vertical acceleration. In this way, an improved usage of the constructively limited effective length of the damping device (11) occurs so that the effect of the protection system is essentially improved.

Abstract: The invention relates to a device for the variable actuation of the gas exchange valves of internal combustion engines, whereby a continuously revolving cam drives an intermediate member which carries out an oscillating, pure rotational movement and moves a drive member in accordance with the respective valve lift curve via a control cam. In order to modify the valve lift curve, the position of the rotational axis of the intermediate member can be modified along an advance curve. The rotational axis of the intermediate member is represented by a pin which is freely rotatable at its guide end and which carries cam plates that are linked therewith in a rotationally fixed manner. Said cam plates define either directly or indirectly the respective required position on the advance curve. The pin is rotated via a suitable joining element.

Abstract: The protection system is used especially for the protection against a fatal effect of vertical accelerations triggered by a landmine on the passengers of an armoured vehicle. For this, the sitting unit consisting of a seat body (7) and a backrest (8) is held movable in vertical direction and is coupled with an end area (15) of a longitudinally variable damping device (11), whose other end (13) is connected to the roof (4) of the vehicle (2) through a carrying equipment (6). In addition, the sitting unit is carried with vertical distance from the vertical guide (18) in a lower guide path (19) transversally directed so that the sitting unit executes both a downward as well as a tilting movement relative to the vehicle together with a passenger (3) during loading through vertical acceleration. In this way, an improved usage of the constructively limited effective length of the damping device (11) occurs so that the effect of the protection system is essentially improved.

Abstract: The invention relates to a device for the variable actuation of gas exchange valves for internal combustion engines, wherein at least one cam (2) pertaining to a camshaft (1) mounted in a housing rotates according to the engine speed. The cam (2) first drives an intermediate member (4) which performs a clear oscillating, rotary movement and has a rotational axis (7) that can be displaced in the housing parallel to itself along a curve of displacement (8), said intermediate member comprising a control cam (5) having a lifting region (5b) and actuating an output member (11) that, in turn, actuates at least one valve (13). The aim of the invention is to enable one such device to be reliably controlled.

Abstract: The invention relates to a device for the variable actuation of the gas exchange valves of internal combustion engines, whereby a continuously revolving cam drives an intermediate member which carries out an oscillating, pure rotational movement and moves a drive member in accordance with the respective valve lift curve via a control cam. In order to modify the valve lift curve, the position of the rotational axis of the intermediate member can be modified along an advance curve. The rotational axis of the intermediate member is represented by a pin which is freely rotatable at its guide end and which carries cam plates that are linked therewith in a rotationally fixed manner. Said cam plates define either directly or indirectly the respective required position on the advance curve. The pin is rotated via a suitable joining element.

Abstract: The invention relates to a device for the variable actuation of gas exchange valves for internal combustion engines, wherein at least one cam (2) pertaining to a camshaft (1) mounted in a housing rotates according to the engine speed. The cam (2) first drives an intermediate member (4) which performs a clear oscillating, rotary movement and has a rotatioral axis (7) that can be displaced in the housing parallel to itself along a curve of displacement (8), said intermediate member comprising a control cam (5) having a lifting region (5b) and actuating an output member (11) that, in turn, actuates at least one valve (13).

Abstract: A device is described for actuating the charge-cycling valves (V) in reciprocating internal combustion engines, consisting of a housing (G); a cam (N) mounted in the housing (G) in a revolute joint (ng) so as to be able to rotate, the rotational movement of which cam is derived from a crankshaft; an intermediate member (Z) activated by this cam (N) by way of a first cam joint (zn); and a power take-off member (A) that transfers the movement to the valve (V), and is connected to act with the intermediate member (Z), directly or via other transfer elements, and at least one other cam joint (za) is provided within the active connection from the first cam joint (zn) to the power take-off member (A), whereby this other cam joint (za) is formed by a cam (Kz or Ka, respectively) on one of the two gear mechanism members (Z, A) that form the cam joint (za), in and of themselves, the shape of which cam has at least one point of inflection (W) in the contact region in which a valve lift is produced, whereby the point of

Abstract: The invention relates to a combustion-driven setting tool for fastening elements having a housing (1), a piston guiding cylinder (22), which is displaceably mounted in the unit housing in the cylinder longitudinal direction, a piston (21) guided in the piston guiding cylinder (22) for driving a fastening element (13) into a receiving material (18), a receiving assembly (12) situated coaxial to the piston guiding cylinder (22) for the fastening element (13), as seen in the driving direction, lies in front of the piston guiding cylinder (22) and is displaceable relative to same; an elastic adjusting assembly (30), which constantly tends to separate receiving assembly (12) and the piston guiding cylinder (22) from each other; and a piston mounting (31), which is attached to the on the end of the receiving assembly (12) facing towards the piston guiding cylinder (22).

Abstract: A setting tool includes a sleeve-shaped housing (11), a piston guide (13) and an ignition unit (12) located in the housing (11), with the ignition unit (12) having a cartridge chamber bottom (19) for enclosing a propellant (25) in cartridge chamber (18), which is located between the piston guide (13) and the ignition unit (12) and a locking device (30) having a locking position (38) in which the ignition unit (12) is held in a pre-loaded position (28) against an energy accumulator (23) and in which the cartridge chamber (18) remains open, and having a release position (39) in which the ignition unit (12) is displaced to its ignition position (29) by the energy accumulator in which the cartridge chamber bottom (19) closes the cartridge chamber (18).

Abstract: The invention relates to a combustion-driven setting tool for fastening elements having a housing (1), a piston guiding cylinder (22), which is displaceably mounted in the unit housing in the cylinder longitudinal direction, a piston (21) guided in the piston guiding cylinder (22) for driving a fastening element (13) into a receiving material (18), a receiving assembly (12) situated coaxial to the piston guiding cylinder (22) for the fastening element (13), as seen in the driving direction, lies in front of the piston guiding cylinder (22) and is displaceable relative to same; an elastic adjusting assembly (30), which constantly tends to separate receiving assembly (12) and the piston guiding cylinder (22) from each other; and a piston mounting (31), which is attached to the on the end of the receiving assembly (12) facing towards the piston guiding cylinder (22).

Abstract: A setting tool includes a sleeve-shaped housing (11), a piston guide (13) and an ignition unit (12) located in the housing (11), with the ignition unit (12) having a cartridge chamber bottom (19) for enclosing a propellant (25) in cartridge chamber (18), which is located between the piston guide (13) and the ignition unit (12) and a locking device (30) having a locking position (38) in which the ignition unit (12) is held in a pre-loaded position (28) against an energy accumulator (23) and in which the cartridge chamber (18) remains open, and having a release position (39) in which the ignition unit (12) is displaced to its ignition position (29) by the energy accumulator in which the cartridge chamber bottom (19) closes the cartridge chamber (18).

Abstract: An anchor bolt having a substantially cylindrical stem (2), and at least one thread provided on the stem (2) and extending from a free front end of the stem at least over a portion of a longitudinal extent of the stem (2), the thread (6) having a plurality of thread turns (6) having, at least over one/third of the stem (2), a width (b1, b2) which decreases, with an increase of a distance of a respective thread turn (6) from the free front end of the stem (2), so that a distance (x1, x2, x3) between trailing and leading flanks (8, 7) of two following one another thread turns (6) of the thread increases backwards.

Abstract: A spreading anchor including a sleeve (2) having an expansion region (3) provided with longitudinal slots (4), and an axial bore (5) having a conical shape in the expansion region (3) conically tapering toward a rear, with respect to a setting direction (5) end (6) of the sleeve (2), and a spreading member (8) having a conical profile at least along a portion of its longitudinal extent and displaceable in the axial bore (5) upon radial expansion of the sleeve expansion region (3), the spreading member (8) having a cylindrical through-bore (9) and being formed of tensioning segments (11-14) which extend in an axial direction and are held together with a possibility of a radial resilient expansion.

Abstract: An expansion dowel including a cylindrical, at least regionwise expandable dowel body (2) having a plurality of axial slots (22) opening at a front, in a setting direction(s), end (24) of the dowel body, and a bore (21) which tapers in the setting direction(s) in a region of the axial slots (22); an expansion sleeve (4) arranged inside of the dowel body (2) and tapering in the setting direction(s), the expansion sleeve (4) having a conically tapering, in the setting direction(s), bore (44), a plurality of slots extending in an axial direction, and a plurality of projections (47) projecting from an outer surface (42) of the sleeve and adapted to displace in the axial slots (22) of the dowel body (2); and an expansion member 93) axially displaceable in the bore (21) of the dowel body.

Abstract: A drive-in dowel formed as a sleeve (2, 22) provided with a load application element (3, 23) and having a front section formed of a plurality of expansion elements separated from each other by longitudinal slots, with each of the plurality of expansion elements being formed of a trailing expansion tab (8, 28) and a leading expansion tab (9, 29) separated by a flexible transitional region (6, 26) and forming with each other an angle (.alpha.) from about 100.degree. to about 160.degree., with a front end of the leading tab being located closer to a sleeve longitudinal axis (A) than the flexible transitional region (6, 26); and with the sleeve being provided with a plurality of chisel-like cutters (10) on outer surfaces of respective flexible transition regions (6; 26) which substantially do not project beyond the outer diameter of the sleeve.

Abstract: An attachment member (31) includes a tubular metallic shank (2) with an axial through-bore (3) and a slot (8) formed in the jacket of the shank (2) and extending along the entire length of the shank (2), and load application means (14) at the trailing, in the setting direction, end portion (13) of the shank (2). At an opposite, leading end (6) of the shank (2), cutters (7) are provided. The outer diameter of the shank (2) diminishes from the trailing end (4) toward the cutter carrying leading end (6). The shank (2) is anchored in a constructional component by reduction of its outer diameter over a substantial portion of its longitudinal extent.