# US 10,500,707 B2 · Hand-power tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,707 B2 - Document ID: US10500707B2 - Status: Granted - Kind: B2 - Application number: 14/126,002 - Filed: 2012-04-27 - Published: 2014-11-27 - Granted: 2019-12-10 - Earliest claimed: 2011-06-14 - Assignees: Robert Bosch GmbH - Applicants: Wolfgang Hirschburger - Inventors: Wolfgang Hirschburger - Web page: https://patentgrep.com/patent/US10500707B2 ## CPC - B25F 3/00: Associations of tools for different working operations with one portable power-drive means; Adapters therefor - B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} - H02J 7/70: characterised by the mechanical construction - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract A hand-power tool includes at least one tool spindle and a drive unit configured to drive the at least one tool spindle at a rotational speed greater than 10,000 min−1. The hand-power tool further includes at least one charging energy input and a tool chuck. The at least one charging energy input is arranged on a hand-power tool housing face that faces the tool chuck. ## Claims ### Claim 1 A hand-held power tool, comprising: a hand-held power tool housing; at least one tool spindle; a drive unit configured to drive the at least one tool spindle at a rotational speed higher than 10 000 min−1; at least one charging energy input; a tool clamping chuck; and a hose coupling that connects the drive unit to the at least one tool spindle via a friction connection that is configured to slip in response to a block in the driven rotation of the at least one tool spindle, wherein the at least one charging energy input is arranged on a side of the hand-held power tool housing facing the tool clamping chuck such that, when the at least one charging energy input is engaged with a charger for the hand-held power tool, at least the tool clamping chuck of the hand-held power tool is surrounded by the charger by at least 90 degrees on at least one plane. ### Claim 2 (depends on 1) The hand-held power tool as claimed in claim 1, wherein the at least one charging energy input has at least one USB interface. ### Claim 3 (depends on 1) The hand-held power tool as claimed in claim 1, wherein the at least one charging energy input is configured to transmit data. ### Claim 4 (depends on 1) The hand-held power tool as claimed in claim 1, wherein the drive unit has a maximum power between 15 watts and 150 watts. ### Claim 5 (depends on 1) The hand-held power tool as claimed in claim 1, further comprising a lithium-based accumulator configured to supply the drive unit with electrical energy. ### Claim 6 (depends on 5) The hand-held power tool as claimed in claim 5, wherein the accumulator is configured to make available a voltage between 3.4 volts and 15 volts. ### Claim 7 (depends on 1) The hand-held power tool as claimed in claim 1, wherein the drive unit is connected in a gearless fashion to the at least one tool spindle. ### Claim 8 A system, comprising: a hand-held power tool, including: a hand-held power tool housing; at least one tool spindle; a drive unit configured to drive the at least one tool spindle at a rotational speed higher than 10 000 min−1; at least one charging energy input; a tool clamping chuck; and a hose coupling that connects the drive unit to the at least one tool spindle via a friction connection that is configured to slip in response to a block in the driven rotation of the at least one tool spindle, wherein the at least one charging energy input is arranged on a side of the hand-held power tool housing facing the tool clamping chuck; and a charger configured to receive the hand-held power tool and engage with the at least one charging energy input such that, when the charger is engaged with the at least one charging energy input, at least the tool clamping chuck of the hand-held power tool is surrounded by the charger by at least 90 degrees on at least one plane. ### Claim 9 (depends on 8) The system as claimed in claim 8, wherein the charger is configured to surround the hand-held power tool by at least 90 degrees on at least one plane during a charging process. ### Claim 10 A hand-held power engraving tool, comprising: a hand-held power tool housing; at least one tool spindle; a drive unit configured to drive the at least one tool spindle at a rotational speed higher than 10 000 min−1; a tool clamping chuck; at least one charging energy input positioned on a side of the hand-held power tool housing facing the tool clamping chuck; and a hose coupling that connects the drive unit to the at least one tool spindle via a friction connection that is configured to slip in response to a block in the driven rotation of the at least one tool spindle. ### Claim 11 (depends on 10) The hand-held power tool as claimed in claim 10, wherein the at least one charging energy input has at least one USB interface. ### Claim 12 (depends on 10) The hand-held power tool as claimed in claim 10, wherein the at least one charging energy input is configured to transmit data. ### Claim 13 (depends on 10) The hand-held power tool as claimed in claim 10, wherein the drive unit has a maximum power between 15 watts and 150 watts. ### Claim 14 (depends on 10) The hand-held power tool as claimed in claim 10, further comprising a lithium-based accumulator configured to supply the drive unit with electrical energy. ### Claim 15 (depends on 14) The hand-held power tool as claimed in claim 14, wherein the accumulator is configured to make available a voltage between 3.4 volts and 15 volts. ### Claim 16 (depends on 10) The hand-held power tool as claimed in claim 10, wherein the drive unit is connected in a gearless fashion to the at least one tool spindle.