US 11,925,253 B2
Wearable drive system for a work apparatus
Michael Steffen, Munich (DE); Christian Glanz, Dachau (DE); Patrick Diller, Baar-Ebenhausen (DE); and Rudolf Berger, Grünwald (DE)
Assigned to Wacker Neuson Produktion GmbH & Co KG, Reichertshofen (DE)
Filed by Wacker Neuson Produktion GmbH & Co. KG, Munich (DE)
Filed on May 18, 2021, as Appl. No. 17/323,533.
Application 17/323,533 is a division of application No. 16/523,296, filed on Jul. 26, 2019, abandoned.
Claims priority of application No. 10 2018 118 555.3 (DE), filed on Jul. 31, 2018.
Prior Publication US 2021/0267357 A1, Sep. 2, 2021
Int. Cl. A45F 3/08 (2006.01); A01D 34/90 (2006.01); B25F 5/02 (2006.01); E04G 21/08 (2006.01)
CPC A45F 3/08 (2013.01) [B25F 5/02 (2013.01); A01D 34/902 (2013.01); E04G 21/08 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A drive system comprising: a carrying device with a wearable carrying frame, the carrying frame including a carrying handle disposed at an upper end of the carrying frame; an energy store carried by the carrying frame; at least one electric drive motor carried by the carrying frame; and a coupling device that is configured to mechanically couple a first end of a flexible drive shaft of an internal concrete vibrator to the at least one electric drive motor of the drive system; wherein the coupling device is further configured to directly transfer rotational movement of the at least one electric drive motor from the at least one electric drive motor to the flexible drive shaft of the internal concrete vibrator; wherein a second end of the flexible drive shaft of the internal concrete vibrator is coupled to a vibrator cylinder of the internal concrete vibrator and configured to directly transfer the rotational movement of the at least one electric drive motor transferred to the flexible drive shaft from the flexible drive shaft to the vibrator cylinder; and wherein the flexible drive shaft is disposed within a flexible operator control hose, the flexible operator control hose extending entirely from the coupling device to the vibratory cylinder.