摘要:
The invention relates to a pneumatic spring percussion mechanism comprising a driving piston moving back and forth in a housing of the percussion mechanism and a percussion piston, wherein a pneumatic spring is configured between the driving piston and the percussion piston. The movement of the driving piston can be transmitted to a percussion piston by means of said pneumatic spring. The driving piston can be driven by an electric linear motor and is connected to an aromatic of the linear motor, forming a single piece therewith. This arrangement makes it possible to eliminate the use of a conventional rotary motor and a crank mechanism to drive the driving piston.
摘要:
An optically pumped vertically emitting semiconductor laser having a highly reflective reflector layer (10), and a radiation-emitting active layer sequence (14) arranged on the reflector layer, in which, during operation, the reflector layer (10), together with an external mirror (20), forms a laser resonator. A heat sink (12), transparent to the emitted radiations is arranged within the laser resonator (10, 20) and in thermal contact with the active layer sequence (14), said heat sink being formed from a material having a higher thermal conductivity than the materials of the active layer sequence (14).
摘要:
The invention relates to a handheld hammer drill and/or paving breaker which is at least of average weight and power class and which comprises an electric motor, a striking tool which can be actuated by the electric motor and a housing wherein the electric motor and the striking tool are received. A handle is embodied in such a way on the housing that a holding position is arranged in a projection of the striking axis of the striking tool. A rotating axis of a motor shaft of an electric motor is parallel to the axis of the striking axis, the total length of the hammer drill and/or striking hammer being small in the longitudinal direction.
摘要:
The invention relates to a pneumatic percussive mechanism for a percussion drill and/or a drill hammer. The inventive mechanism comprises, housed in the housing of the percussive mechanism, an axially reciprocating percussion piston. A drive piston is axially reciprocated in a guide cylinder of said percussion piston. The guide cylinder is provided on its inner face with one or more air compensation pockets. At least one idle opening extends through the guide cylinder. In the percussive action, the idle opening does not communicate with the ambience while in the idle mode the idle opening can be displaced via an idle channel that leads to the ambience and thus connects a cavity that receives a pneumatic piston with the ambience by way of the idle opening. The air compensation pockets and the idle openings allow and optimization of the piston return behavior and of the idle operation of the percussive mechanism.
摘要:
An electric plug-in connector (11) having at least two coaxial round contacts (12, 13) provided on an electric component, e.g. a pressure regulator (10) or the like, wherein one round contact, preferably the inner round contact (12), contains an adjustment mechanism. There is further provided one connector (17) having at least two plug-in contacts for connection with the round contacts (12, 13). The plug-in connector (11) has hooks which are configured in such a way that in a plane which extends, e.g. perpendicular to the longitudinal axis (21) of the round contacts (12, 13), the connector (17) can be inserted onto the round contacts from any direction and can be locked thereon and/or on the pressure regulator (10) and the adjustment mechanisms is freely accessible in the inner round contact (12).
摘要:
Pressure regulating valve comprising a connection for a pressure line (P), a connection for a working line (A), a connection for an outlet line (T) communicating with the ambient pressure and at least two diaphragm stages with defined or definable drag, the two diaphragm stages being connected to each other in a variable manner and subject to mechanical or hydraulic action according to the principle of the hydraulic half bridge. The two variable diaphragm stages are provided as the inlet and outlet diaphragms of a pressure regulating chamber (7) and each has a sealing element, said sealing element (5) of the inlet diaphragm (3) is designed as ball, or calotte, ortruncated cone, or cylinder and/or the sealing element of the outlet diaphragm is designed as ball, or calotte, or truncated cone, or cylinder.
摘要:
The invention relates to a pneumatic impact mechanism for a paving breaker and/or hammer drill which is characterized by a drive piston (1) having air equalization slits (5) and an extremely reduced wall thickness of the guide sleeve (1a) thereof This leads to a distinct reduction of the vibrations during the no-load operation of the impact mechanism, whereby advantageous characteristics of the impact mechanism with regard to wear behavior and compactness can be retained.
摘要:
A firearm, in particular a hand firearm is proposed having a displaceable barrel (23) and a locking mechanism between a bolt carriage (22) accepting the barrel and a guide rod (26) coupled to the barrel (23), wherein the unlocking is effected through rotation of this guide rod (26)
摘要:
A double action pneumatic spring percussion mechanism has an air supply mechanism. A percussion piston is movable with a driving piston. In an air-supply position, ambient air is supplied through an air inlet to a front pneumatic spring. When the percussion piston and driving piston are moved accordingly relative to each other, a loading hole is opened, through which air under increased pressure can flow out of the front pneumatic spring into a rear pneumatic spring, ensuring an increase of pressure in the rear pneumatic spring. The air pressure increase in both pneumatic springs makes it possible to use the pneumatic spring percussion mechanism even in conditions of operation with a low ambient air pressure.
摘要:
Safety belt system for seats of a motor vehicle displaceable in the longitudinal direction of the vehicle, the belt system comprising a belt (25) which can be unwound from a reel, an upper deflection fitting or attachment fitting for the belt (25) and a lower attachment fitting (2) for the end of the belt (25) remote from the reel arranged at the side relative to the associated seat, with the lower attachment fitting being secured to the vehicle so that it is capable of displacement in the longitudinal direction of the vehicle, wherein, in order to ensure a comfortable grasping position of the safety belt (25) in each position of the vehicle seat, the displacement position of the lower attachment fitting (2) is controlled from the associated vehicle seat in dependence on its longitudinal position.