Mydata Automation Ab

Volvo Construction Equipment Ab

Lkab Wassara Ab

Magnus Fridsell

William Holm

Mikael Kamfors

Pelle Reinius

Magnus Hörman

Fredrik Egerström

Martin Öhnström

Mikael Enberg

Fredrik Löfgren

Jan Marcus Gabrielsson

The invention relates to a rotary device () for a down-the-hole hammer (), which rotary device is accommodated in a rotation motor housing () and mounted behind a drill housing () for transferring a torque to a drill bit () and a pressurized drive fluid () to a striking mechanism () for the drill bit. The rotary device includes a cam curve with a plurality of drive lobes (-) and working chambers () along a circumference in the rotation motor housing (), a rotor disc () carrying a plurality of radially movable vanes (-), which are accommodated in piston tracks (-) in the rotor disc. Characteristics of the rotary device are that it includes; an odd integer of a number of drive lobes (-), which is equal to or higher than three; an odd integer of a number of working chambers (), which is equal to or higher than three; an odd integer of a number of vanes (-), which is equal to or higher than three, and wherein said number of vanes are simultaneously pressurized in each working chamber ().

Drive device for rotatable operation of a drill bit of a down-the-hole hammer

An armrest for a vehicle seat includes a seat cushion and a backrest. The armrest is intended to be turned around a pivot axis between a first active position and a second folded-away position. The armrest includes an upper part, which in the active position is positioned with its longitudinal axis substantially parallel to a substantially vertical plane through a side surface constituting an outer edge surface of the vehicle seat and intended to support a user's forearm, and at least one lower part provided with a fixing device for attaching the upper part to the vehicle seat. The lower part includes a linking mechanism arranged for setting the upper part in a transverse direction between a first position outside the side surface and an adjustable second position, and a locking device that is arranged to activate a catch that locks the upper part in a set position after it has been moved to the second position. A vehicle seat provided with an armrest and to a vehicle including an armrest are also provided.

Foldable armrest

A method improves the performance of a jetting assembly in an apparatus for jetting droplets of viscous medium on the fly onto a substrate. The jetting assembly is releasably mounted in the apparatus and includes a nozzle, an ejection mechanism connected to the nozzle, and a viscous medium container connected to the eject mechanism. Information relating to an XY-position and a Z-position is obtained together with information regarding the exit velocity a droplet of viscous medium has when it exits the nozzle. The information is used as a basis for adjusting a trigger position of the nozzle for the subsequent jetting of droplets. A jetting assembly also includes a storage device arranged to receive and hold calibration information of properties of the assembly obtained during calibration measurements.

Method of jetting viscous medium

The invention relates to a method of improving the performance of a jetting assembly in an apparatus for jetting droplets of viscous medium on the fly onto a substrate. The jetting assembly is releasably mounted in the apparatus and includes a nozzle, an ejection mechanism connected to the nozzle, and a viscous medium container connect to the eject mechanism. Information relating to an XY-position and a Z-position is obtained together with information regarding the exit velocity a droplet of viscous medium has when it exits the nozzle. The information is used as a basis for adjusting a trigger position of the nozzle for the subsequent jetting of droplets. The invention also concerns such a jetting assembly including storage device arranged to receive and hold calibration information of properties of the assembly obtained during calibration measurements.

Growing community of inventors

Sollentuna, Sweden

Magnus Fridsell