Daimler Chrysler Ag

Assa Abloy Ab

Atlas Copco Tools Ab

Peter Kjellqvist

Tomas Lars Jonsson

Mats Cederblad

Tobias Lindbäck

Pär Berglund

J&ouml;rgen Engstr&ouml;m

It is provided an electronic lock for selectively locking a barrier to a surrounding structure. The electronic lock comprises: a locking bolt, a housing comprising metallic material, wherein the housing comprises a through-hole through which the locking bolt can pass; and a wireless communication module. The housing comprises a cut-out forming a slot antenna, wherein the wireless communication module is connected to the housing and thus the slot antenna. The slot antenna is formed on the same surface of the housing through which the locking bolt can pass.

Electronic lock with slot antenna

The present invention relates to a power-wrench comprising an electrical converter-fed motor having a permanent-magnetized rotor and a stator provided with winding, the motor winding () comprising at least two winding parts, which independently of each other are connected and disconnected by a switch-over device (). According to the invention, a first winding part () may be arranged to control the magnetic field of the motor so that the motor, having the first winding part () connected, is adapted for the threading-down phase of the nut driving and operates with low torque and high number of revolutions adapted to said phase, as well as that a second winding part () may be arranged to control the magnetic field of the motor so that the motor, having the second winding part () connected, is adapted for the final-threading phase of the nut driving and operates with high torque and low number of revolutions adapted to said phase.

Power wrench

The present invention relates to a member ( ) arranged to act between two parts of a vehicle which are movable in relation to each other. The member ( ) comprises a first portion ( ) having an elongated rod ( ) with external threads ( ) and a second portion ( ) having a nut ( ) rotatably provided on the rod ( ) so that the length of the member ( ) during a rotary motion between the rod ( ) and nut ( ) is variable in an axial direction (L). An electric rotor machine ( ), having a stator ( ) and a rotor ( ) which is rigidly connected to said nut ( ), is arranged to influence said rotary motion. The rotor ( ) and nut ( ) are so positioned in relation to each other that at least a radial plane with respect to the axial direction (L) extends both through the rotor ( ) and the nut ( ).

Member arranged to act between two in relation to each other movable parts of a vehicle

Growing community of inventors

Mölnbo, Sweden

Peter Kjellqvist