Patents Assigned to Reac AB
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Patent number: 10541631Abstract: This invention relates to a linear type actuator unit, said actuator unit (100), including an electric motor (1) driving a linear actuator (2) of, said motor (1) having a casing (11), a stator (14,15) fixed to the casing, a rotor (13) fixed to a rotary part (10), preferably a rotary motor shaft (10), wherein said rotary part (10) is arranged to be operatively connected to a reduction gear (5) which drives the mechanical output of the actuator (2), a separate magnetic brake unit (3), said magnetic brake (3) including a rotating brake member (30,31) connected to the motor shaft (10), directly or indirectly, and a plurality of fixed brake members (32, 33), wherein said magnetic brake (3) is arranged to produce a torque that will strive to position a rotary member (10, 20) with said rotating brake member (30,31) into one or more specific angular positions in relation to the fixed brake members (32, 33), and wherein said rotating brake member (30,31) is in the form of a separate annulus (30, 31) attached to said rType: GrantFiled: April 22, 2016Date of Patent: January 21, 2020Assignee: REAC ABInventor: Johan Olsson
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Patent number: 10316945Abstract: This invention relates to a linear actuator, comprising an electric motor (10), a worm gear (13, 14), a transmission (15, 16, 19), an outer tube (2) and a spindle (12), said spindle (12) being in connection with the transmission (15, 16, 19), a spindle nut (11) on the spindle (12), a thrust bearing (20) for supporting a shaft end (21) of the spindle (12), wherein the connection between the shaft end of the spindle (12) and the transmission (15, 16, 19) allows a mutual axial movement so that axial forces are only lead through the spindle (12) bypassing the transmission (15, 16, 19) and directly to the thrust bearing (20), wherein a support structure (17, 18, 24, 28) fixedly connects the outer tube (2) and a lower bracket (20, 22), wherein said worm gear (13, 14) drives a shaft (19) included in said transmission (15, 16, 19), which shaft (19) has a driving gear wheel (15) fixedly attached thereto, arranged to transmit torque to a driven gear wheel (16) fixedly attached to the spindle (12), wherein said transmisType: GrantFiled: February 10, 2017Date of Patent: June 11, 2019Assignee: REAC ABInventor: Johan Olsson
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Patent number: 10028870Abstract: The invention relates to a powered wheelchair for transporting a person, comprising a seat frame for supporting the person, a pair of opposing main wheel assemblies, including a first main wheel assembly and a second main wheel assembly connected to the seat frame, and a third main wheel assembly arranged spaced apart from the pair of opposing main wheel assemblies and connected to said seat frame. The powered wheelchair further comprises a support wheel arrangement for supporting the powered wheelchair, said support wheel arrangement having a main beam and a front support wheel unit capable of being applied to a ground surface. The main beam is rotatably connected to said third main wheel assembly at a third connection point and connected via a guiding mechanism to the first main wheel assembly at a first connection point.Type: GrantFiled: April 29, 2014Date of Patent: July 24, 2018Assignee: REAC ABInventor: Carl Johan Olsson
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Publication number: 20180167001Abstract: This invention relates to a linear type actuator unit, said actuator unit (100), including an electric motor (1) driving a linear actuator (2) of, said motor (1) having a casing (11), a stator (14,15) fixed to the casing, a rotor (13) fixed to a rotary part (10), preferably a rotary motor shaft (10), wherein said rotary part (10) is arranged to be operatively connected to a reduction gear (5) which drives the mechanical output of the actuator (2), a separate magnetic brake unit (3), said magnetic brake (3) including a rotating brake member (30,31) connected to the motor shaft (10), directly or indirectly, and a plurality of fixed brake members (32, 33), wherein said magnetic brake (3) is arranged to produce a torque that will strive to position a rotary member (10, 20) with said rotating brake member (30,31) into one or more specific angular positions in relation to the fixed brake members (32, 33), and wherein said rotating brake member (30,31) is in the form of a separate annulus (30, 31) attached to said rType: ApplicationFiled: April 22, 2016Publication date: June 14, 2018Applicant: REAC ABInventor: Johan OLSSON
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Publication number: 20170241524Abstract: This invention relates to a linear actuator, comprising an electric motor (10), a worm gear (13, 14), a transmission (15, 16, 19), an outer tube (2) and a spindle (12), said spindle (12) being in connection with the transmission (15, 16, 19), a spindle nut (11) on the spindle (12), a thrust bearing (20) for supporting a shaft end (21) of the spindle (12), wherein the connection between the shaft end of the spindle (12) and the transmission (15, 16, 19) allows a mutual axial movement so that axial forces are only lead through the spindle (12) bypassing the transmission (15, 16, 19) and directly to the thrust bearing (20), wherein a support structure (17, 18, 24, 28) fixedly connects the outer tube (2) and a lower bracket (20, 22), wherein said worm gear (13, 14) drives a shaft (19) included in said transmission (15, 16, 19), which shaft (19) has a driving gear wheel (15) fixedly attached thereto, arranged to transmit torque to a driven gear wheel (16) fixedly attached to the spindle (12), wherein said transmisType: ApplicationFiled: February 10, 2017Publication date: August 24, 2017Applicant: REAC ABInventor: Johan OLSSON
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Patent number: 7284458Abstract: A device to be used with an adjusting element comprising a rod piston (3) displaceable with the aid of a motor (4) in a piston tube (2). The motor (4) is rotatably arranged at the adjusting element (1) through a worm gear (6), either directly or through a motor attachment (5), wherein the motor (4) extends in an extension plane in parallel with the piston tube (2), said worm gear (6) having a throat formation (7) for axial fixation of the position of the motor (4) in the adjusting element (1) while a free rotation of the motor (4) is practicable through 360° in order to make possible, in applications with limited space, an eligble position fixation of the motor (4) in a predetermined angle in relation to the adjusting element (1).Type: GrantFiled: April 5, 2004Date of Patent: October 23, 2007Assignee: Reac ABInventors: Göran Magnusson, Leif Bengtsson
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Patent number: RE40870Abstract: A device to be used with an adjusting element comprising a rod piston (3) displaceable with the aid of a motor (4) in a piston tube (2). The motor (4) is rotatably arranged at the adjusting element (1) through a worm gear (6), either directly or through a motor attachment (5), wherein the motor (4) extends in an extension plane in parallel with the piston tube (2), said worm gear (6) having a throat formation (7) for axial fixation of the position of the motor (4) in the adjusting element (1) while a free rotation of the motor (4) is practicable through 360° in order to make possible, in applications with limited space, an eligible position fixation of the motor (4) in a predetermined angle in relation to the adjusting element (1).Type: GrantFiled: May 9, 2008Date of Patent: August 18, 2009Assignee: Reac ABInventors: Goran Magnusson, Leif Bengtsson