A handheld setting tool for driving a nail or bolt into a substrate, comprising: a drive, preferably a gas spring drive or an electrodynamic drive, which drives an actuator, which actuator is used to drive the nail or bolt into the substrate; characterised by: a decoupling device which at least partially decouples a first movement process of a first moving part or piston in the actuator, driven by the drive, from a second movement process of a second moving part or piston in the actuator so as to drive the nail or bolt into the substrate.
A setting tool, comprising: at least a housing and an electrodynamic drive, wherein the electrodynamic drive comprises at least: a first excitation coil; a movable electrical conductor, for example a squirrel-cage rotor or a second coil, which is arranged movably in the setting tool; a driving-in element; a cable; a tensioning device for the at least one cable, comprising at least one spring element and a means for deflecting the force, wherein the at least one means for deflecting the force is preferably designed as a movable roller which furthermore preferably has a groove for receiving the cable; and a stop; characterized in that the cable is fastened at one end directly or indirectly to the movable electrical conductor and at the other end directly or indirectly to the housing of the setting tool, and in that, in the inoperative state of the setting tool, the cable is tensioned by the tensioning device, by pretensioning of the spring element, so as to keep the movable electrical conductor pulled into an inoperative position defined by the stop, and wherein, during a setting operation, the movement of the movable electrical conductor further tensions the spring element via the cable, after which the spring element rebounds again to a pretensioned state and pulls the movable electrical conductor back into its inoperative position.
B25C 1/06 - Hand-held nailing toolsNail feeding devices therefor operated by electric power
H01F 7/06 - ElectromagnetsActuators including electromagnets
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 41/00 - Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
H02G 11/00 - Arrangements of electric cables or lines between relatively-movable parts
A handheld setting tool for driving a nail or bolt into a substrate, comprising: a drive, preferably a gas spring drive or an electrodynamic drive, which drives an actuator, which actuator is used to drive the nail or bolt into the substrate; characterised by: a decoupling device which at least partially decouples a first movement process of a first moving part or piston in the actuator, driven by the drive, from a second movement process of a second moving part or piston in the actuator so as to drive the nail or bolt into the substrate.
A handheld setting tool for setting a nail or a pin into a substrate, comprising: a drive, preferably a gas spring drive or an electrodynamic drive, which drives an actuator (11), which actuator is used to drive the nail or the pin into the substrate; characterized by: a decoupling device, which at least partially decouples a first motion process of a first movable part or piston (111) in the actuator (11), driven by the drive, from a second motion process of a second movable part or piston (112) in the actuator (11) so as to drive the nail or the pin in.
A bistable hoisting solenoid comprising first and second stroke end position and a stroke center position, comprising: a stator, one or more armatures, at least one coil, at least one permanent magnet and a spring system having a first spring which, in the first stroke end position, exerts a force in the direction of the stroke center position on the one or more armatures, and a second spring which, in the second stroke end position, exerts a force in the direction of the stroke center position on the one or more armatures. The one or more armatures, in the event of a loss of current, are held by permanent magnets in both stroke end positions. The first and the second springs have different paths with different lengths and/or exert in the respective stroke end position different sized forces on the one or more armatures and/or have different sized spring rates.
B65G 47/29 - Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a single conveyor by temporarily stopping movement
B65G 43/00 - Control devices, e.g. for safety, warning or fault-correcting
B65G 47/88 - Separating or stopping elements, e.g. fingers
H01F 7/18 - Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
The invention relates to a drive comprising at least a first exciter coil; a first squirrel-cage rotor preferably arranged coaxially with the first exciter coil; an electrical energy store, more particularly a capacitor or a capacitor bank; one or more semiconductor switches and, in this case, preferably a thyristor; an electronic controller for activating the semiconductor switch(es); a spring having a progressive characteristic curve, more particularly a gas spring, and means for accelerating the first squirrel-cage rotor to initiate a setting process initially in the direction of the first exciter coil, wherein the first squirrel-cage rotor is connected or can be connected to the progressive spring in a mechanical or fluid-dynamic manner to reverse the direction of movement of the first squirrel-cage rotor, thus to reflect said rotor away from the first exciter coil by spring action, wherein it is possible to cause a discharge of the electrical energy store via the first exciter coil by means of the electronic controller, which discharge can be initiated to be synchronized with the movement and/or position of the squirrel-cage rotor relative to the first exciter coil, wherein the drive is preferably dimensioned such that the current in the first exciter coil reaches a maximum once the first squirrel-cage rotor has already changed its direction of movement, that is to say it is moving away from the first exciter coil again, but is not yet further away from the first exciter coil than the first exciter coil is long.
The present invention discloses an electromagnetic locking element (4) for locking the joint (3) of a joint orthosis or a joint prosthesis, in particular a knee orthosis or knee prosthesis, comprising a bistable solenoid (5) with at least one coil and at least one permanent magnet; a pin (6), which can be extended and retracted with the aid of the solenoid, for locking the joint, one or more electrical energy stores (9), in particular capacitors, and an electrical circuit (11) which, with the aid of semiconductor switches, discharges the energy store or stores via the at least one coil of the solenoid in such a way that the pin is extended.
The present invention relates to an electromagnetic stopper for stopping and/or separating out article carriers and/or articles conveyed on a continuously operated article conveyor system, comprising: - a bistable solenoid having at least one coil and at least one permanent magnet; - a cam, which can be retracted and extended with the aid of the solenoid, - one or more electrical energy stores, in particular capacitors, - a controller, which, with the aid of switches, discharges the energy store(s) via the at least one coil of the solenoid such that the cam is extended.
The invention relates to a bistable hoisting solenoid comprising a first and a second stroke end position and a stroke center position between the stroke end positions, comprising: a stator, one or more armatures, at least one coil, at least one permanent magnet and a spring system having a first spring which, in the first stroke end position exerts a force in the direction of the stroke centre position on the one or more armatures, and a second spring which, in the second stroke end position exerts a force in the direction of the stroke centre position on the one or more armatures. The one or more armatures, in the event of a loss of current, are held by permanent magnets in both stroke end positions counter to the spring force. According to the invention, the first and the second springs have different paths with different lengths and/or exert in the respective stroke end position different sized forces on the one or more armatures and/or have different sized spring rates.
A reversing linear solenoid polarized in a permanent magnetic manner having a first and second end stroke position as well as at least one armature, wherein it has a spring system or is operated at such a spring system which exerts a force in the direction of the center stroke position on the armature or armatures in the end stroke position(s). The spring system and the reversing linear solenoid are coordinated with one another such that the armature or armatures are held in a permanent magnetic manner against the spring force in both end stroke positions. The spring system is configured such that the potential energy (elastically) stored by movement of the armature or armatures into its/their end stroke movements is of equal magnitude. If external restoring forces caused by the application are present, they must be taken into account in the design of the spring system.
A reversing linear solenoid polarized in a permanent magnetic manner having a first and second end stroke position as well as at least one armature, wherein it has a spring system or is operated at such a spring system which exerts a force in the direction of the center stroke position on the armature or armatures in the end stroke position(s). The spring system and the reversing linear solenoid are coordinated with one another such that the armature or armatures are held in a permanent magnetic manner against the spring force in both end stroke positions. The spring system is configured such that the potential energy (elastically) stored by movement of the armature or armatures into its/their end stroke movements is of equal magnitude. If external restoring forces caused by the application are present, they must be taken into account in the design of the spring system.
A scalable, highly dynamic electromagnetic linear drive with limited travel. The linear actuator is distinguished by low transverse forces. The linear actuator comprises a stator comprising two soft-magnetic limbs; an armature made of soft-magnetic material which is flat at least in certain sections and which is arranged so as to be movable along an axis between the limbs of the stator; at least two flat coils with a soft-magnetic core and a large coil height, which coils are attached to the stator (stator coils), wherein the coil cores are part of the soft-magnetic limbs or are connected thereto in a magnetically conductive fashion; at least one flat coil (armature coil) with a soft-magnetic core and a large coil height which is attached to the armature, wherein the coil core can be part of the armature or can be formed therefrom, or the armature coil is located with its soft-magnetic core lying in a recess in the flat armature; a well-defined start and end position of the travel (“end positions”); at least one switchable means which is designed to lock the armature in at least one end position counter to a restoring force, for example a self-locking magnet or a mechanical latch, a switchable power supply composed of an energy accumulator, for example a capacitor battery, and at least one switch.
H02K 41/00 - Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
The invention relates to a permanent-magnet polarized reversible lifting magnet having a first and a second end-of-stroke position, and having at least one armature, characterized in that the magnet has or is operated by means of a spring system, which in each of the two end-of-stroke positions exerts a force on the armature, or armatures, in the direction of the stroke center position. According to the invention, the spring system and the reversible lifting magnet are balanced such that in both end-of-stroke positions, the armature, or the armatures, can be held permanent-magnetically against the spring force. Preferably, the spring system is to be configured such that the potential energy (elastically) stored therein due to moving the armature, or armatures, into the end-of-stroke position(s) of the armature(s) is as equal as possible in both end-of-stroke positions. If external restoring forces are present as a result of the application, the external restoring forces need to be taken into account accordingly in the configuration of the spring system.
A scalable, highly dynamic electromagnetic linear drive with limited travel is described below. The linear actuator is distinguished by low transverse forces. According to an example of the invention, the linear actuator comprises the following: - a stator comprising two soft-magnetic limbs; - an armature made of soft-magnetic material which is flat at least in certain sections and which is arranged so as to be movable along an axis between the limbs of the stator; - at least two flat coils with a soft-magnetic core and a large coil height, which coils are attached to the stator (stator coils), wherein the coil cores are part of the soft-magnetic limbs or are connected thereto in a magnetically conductive fashion; - at least one flat coil (armature coil) with a soft-magnetic core and a large coil height which is attached to the armature, wherein the coil core can be part of the armature or can be formed therefrom, or the armature coil is located with its soft-magnetic core lying in a recess in the flat armature; - a well-defined start and end position of the travel ("end positions") - at least one switchable means which is designed to lock the armature in at least one end position counter to a restoring force, for example a self-locking magnet or a mechanical latch, - a switchable power supply composed of an energy accumulator, for example a capacitor battery, and at least one switch.
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