# US 2022/0274232 A1 · Screw device having integrated detection means > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0274232 A1 - Document ID: US20220274232A1 - Status: Published application - Kind: A1 - Application number: 17/631,671 - Filed: 2020-06-18 - Published: 2022-09-01 - Earliest claimed: 2019-08-02 - Assignees: Johannes Lübbering GmbH - Applicants: Johannes Lübbering GmbH - Inventors: Bruno Bergmann; Johannes Petermann; Achim Lübbering - Web page: https://patentgrep.com/patent/US20220274232A1 ## CPC - B25B 13/481: {for operating in areas having limited access} - B25B 17/00: Hand-driven gear-operated wrenches or screwdrivers (ratchet-operated B25B13/46 {B25B13/467}, B25B15/04; {for mounting or dismounting wheels B60B29/005}) - B25B 17/02: providing for torque amplification - B25B 23/1425: {by electrical means} - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING ## Abstract A screw device (10) for applying a torque to a screw partner (20), includes a flat output assembly (1) having an output (1b) detachably connected to the screw partner (20) and a drive (1a), to which a drive torque can be manually or mechanically applied. A detection assembly (5) for providing measurement values for determining and/or monitoring an output torque acting on the screw partner on the output side, is provided in a housing (30) of the flat output assembly (1) and can detect a radial a force and/or a tangential force acting on a gearwheel (4d) which connects the drive and the output of the flat output assembly (1) in a torque-transmitting manner, and provides same for electronic signal evaluation. ## Claims ### Claim 1 A screwing device (10) for applying a torque to a screw partner (20), the screwing device (10) comprising geared offset head means (1) having an output (1b) which can be connected to the screw partner (20) in a detachable manner and a drive (1a) to which a drive torque can be manually or mechanically applied, in particular via an intermediate angle and/or bevel gearing (31), and detection means (5) for providing measurement values for determining and/or monitoring an output torque acting on the screw partner on the output side, wherein the detection means (5) provided in a housing (30) of the geared offset head means (1) are configured in such a manner that they can detect a radial force and/or a tangential force which acts on a gearwheel (4d) which connects the drive and the output of the geared offset head means (1) in a torque-transmitting manner, and wherein the detection means (5) can provide the radial and/or tangential force for signal evaluation. ### Claim 2 (depends on 1) The device according to claim 1, wherein the geared offset head means (1) comprise the gearwheel (4d), which interacts with the detection means (5) between a drive assembly (2), which has a gearing and which forms the drive (1a), and an output assembly (3), which has a gearing and which forms the output (1b), or wherein an output assembly (3) comprises the gearwheel (4d) which interacts with the detection means (5). ### Claim 3 (depends on 1) The device according to claim 1, wherein the geared offset head means (1) comprise a plurality of gearwheels (4a, 4b, 4c, 4d, 4e) which form a gear arrangement between the drive (1a) and the output (1b). ### Claim 4 (depends on 1) The device according to claim 1, wherein the geared offset head means (1) comprise a plurality of gearwheels. ### Claim 5 (depends on 1) The device according to claim 1, wherein the detection means (5) comprise at least one force transducer (5a) which is disposed in a line of action (W) of the resulting force applied to the gearwheel (4d), the line of action (W) extending radially to the gearwheel. ### Claim 6 (depends on 5) The device according to claim 5, wherein the force transducer (5a) is disposed on an end face (6a) of the gearwheel and coaxially thereto and/or wherein the force transducer (5a) has a maximal outer diameter (d) or a maximal radial extension which essentially corresponds to a root circle of the gearwheel (4d). ### Claim 7 (depends on 5) The device according to claim 5, wherein the force transducer (5a) is firmly connected to or integrally formed with a bearing (19) of the gearwheel (4d). ### Claim 8 (depends on 5) The device according to claim 5, wherein the force transducer (5a) comprises integrated force sensor means which are configured to detect a compressive and/or pulling force applied to the force transducer (5a) in a radial and/or tangential direction. ### Claim 9 (depends on 8) The device according to claim 8, wherein the integrated force sensor means are formed by strain gauges (12a, 12b) which are attached to the force transducer (5a) and which are disposed on opposite struts (7a, 7b) of the force transducer (5a) which extend in the radial direction. ### Claim 10 (depends on 8) The device according to claim 8, wherein the integrated sensor means are formed by hydraulic or pneumatic pressure sensor means (14a, 14b) which are attached to the force transducer (5a) or connected thereto. ### Claim 11 (depends on 8) The device according to claim 8, wherein the integrated sensor means are formed by a polymer mass (15a, 15b) containing graphene and having variable electrical conductivity, the polymer mass (15a, 15b) being attached to or integrated in the force transducer (5a). ### Claim 12 (depends on 1) The device according to claim 1, wherein the detection means (5) comprise means for the wireless signal transmission of a measurement value signal which corresponds to the detected output torque and/or which monitors said output torque. ### Claim 13 (depends on 1) The device according to claim 1, wherein the detection means (5) comprise electronic interface and/or signal processing means and electrical energy supply means. ### Claim 14 (depends on 13) The device according to claim 13, wherein the electrical energy supply means are realized as electrical generator means which interact with a moving component of the geared offset head means. ### Claim 15 (depends on 1) A handheld or stationary screwing system (40) comprising the screwing device (10) according to claim 1 and drive torque generating means (30) connected to the geared offset head means on the drive side. ### Claim 16 (depends on 1) The device according to claim 1, wherein the drive torque can be applied by the drive (1a) via an intermediate angle and/or bevel gearing (31), wherein the gearwheel (4d) is a straight-toothed gearwheel, and wherein the signal evaluation is electronic signal evaluation. ### Claim 17 (depends on 3) The device according to claim 3, wherein the gearwheel (4d) interacting with the detection means (5) is one of the gearwheels (4a, 4b, 4c, 4d, 4e) forming the gear arrangement. ### Claim 18 (depends on 4) The device according to claim 4, wherein the plurality of gearwheels (4a, 4b, 4c, 4d, 4e) have rotation axes extending in a common plane. ### Claim 19 (depends on 11) The device according to claim 11, wherein the polymer mass comprises a viscoelastic polymer mass containing graphene. ### Claim 20 (depends on 14) The device according to claim 14, wherein the moving component of the geared offset head means is a rotating component of the geared offset head means.