# US 2014/0196923 A1 · Hand-held power tool with an ergonomic handle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196923 A1 - Document ID: US20140196923A1 - Status: Published application - Kind: A1 - Application number: 14/154,249 - Filed: 2014-01-14 - Published: 2014-07-17 - Earliest claimed: 2013-01-16 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Markus Leupert; Hans Bargen - Web page: https://patentgrep.com/patent/US20140196923A1 ## CPC - B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} - B25G 1/102: {the shape being specially adapted to facilitate handling or improve grip} - 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)} - B25G: HANDLES FOR HAND IMPLEMENTS (attaching the blades or the like to handles of hand tools for soil working A01B1/22; handles of hand implements for harvesting A01D1/14; handles integral with brushware A46B) ## Abstract A hand-held power tool includes a tool housing on which an ergonomic handle is formed for a user's hand, including the user's thumb, index finger, middle finger, ring finger, and small finger. The handle includes a first region for the index finger and the thumb, a second region for the middle finger, a third region for the ring finger, and a fourth region for the small finger. The second region has an approximately oval cross section with a first main axis and a first secondary axis. The third region has an approximately oval cross section with a second main axis and a second secondary axis. The fourth region has an approximately oval cross section with a third main axis and a third secondary axis. The first main axis is longer than the second main axis, and the first secondary axis is shorter than the second and third secondary axes. ## Claims ### Claim 1 A hand-held power tool, comprising: a tool housing; and an ergonomic handle formed on the tool housing and configured for a user's hand with a thumb, an index finger, a middle finger, a ring finger, and a small finger, the ergonomic handle having a first region configured for the index finger and the thumb, a second region configured for the middle finger, a third region configured for the ring finger, and a fourth region configured for the small finger, wherein the second region has an at least approximately oval cross section with a first main axis and a first secondary axis, the third region has an at least approximately oval cross section with a second main axis and a second secondary axis, and the fourth region has an at least approximately oval cross section with a third main axis and a third secondary axis, wherein the first main axis or the third main axis is longer than the second main axis, and wherein the first secondary axis is shorter than the second and third secondary axes. ### Claim 2 (depends on 1) The hand-held power tool according to claim 1, wherein the third main axis and the third secondary axis are at least approximately identical in length. ### Claim 3 (depends on 1) The hand-held power tool according to claim 1, wherein the handle has a handle longitudinal axis, and the tool housing has a housing longitudinal axis arranged at a predetermined angle transversely with respect to the handle longitudinal axis, and wherein the first main axis is longer than the second and third main axes. ### Claim 4 (depends on 3) The hand-held power tool according to claim 3, wherein the first main axis is at least 48 mm in length and the second main axis is at least 46 mm in length. ### Claim 5 (depends on 3) The hand-held power tool according to claim 3, wherein the second main axis is longer than the third main axis. ### Claim 6 (depends on 3) The hand-held power tool according to claim 3, wherein the third main axis is at least 43 mm in length. ### Claim 7 (depends on 3) The hand-held power tool according to claim 3, wherein the second secondary axis is shorter than the third secondary axis. ### Claim 8 (depends on 3) The hand-held power tool according to claim 3, wherein the first secondary axis is at maximum 38 mm in length, the second secondary axis is at maximum 40 mm in length, and the third secondary axis is at least 43 mm in length. ### Claim 9 (depends on 1) The hand-held power tool according to claim 1, wherein the tool housing and the handle have a common longitudinal axis, and wherein the third main axis is longer than the first and second main axes. ### Claim 10 (depends on 9) The hand-held power tool according to claim 9, wherein the third main axis is at least 40.6 mm in length and the second main axis is at least 40.4 mm in length. ### Claim 11 (depends on 9) The hand-held power tool according to claim 9, wherein the second main axis is longer than the first main axis. ### Claim 12 (depends on 9) The hand-held power tool according to claim 9, wherein the first main axis is at maximum 40.3 mm in length. ### Claim 13 (depends on 9) The hand-held power tool according to claim 9, wherein the second secondary axis is shorter than the third secondary axis. ### Claim 14 (depends on 9) The hand-held power tool according to claim 9, wherein the first secondary axis is at maximum 37 mm in length, the second secondary axis is at maximum 39 mm in length, and the third secondary axis is at least 40 mm in length. ### Claim 15 A tool housing for a hand-held power tool, comprising: an ergonomic handle formed on the tool housing and configured for a user's hand with a thumb, an index finger, a middle finger, a ring finger, and a small finger, the ergonomic handling having a first region configured for the index finger and the thumb, a second region configured for the middle finger, a third region configured for the ring finger, and a fourth region configured for the small finger, wherein the second region has an at least approximately oval cross section with a first main axis and a first secondary axis, the third region has an at least approximately oval cross section with a second main axis and a second secondary axis, and the fourth region has an at least approximately oval cross section with a third main axis and a third secondary axis, wherein the first main axis or the third main axis is longer than the second main axis, and wherein the first secondary axis is shorter than the second and third secondary axes. ### Claim 16 An ergonomic handle for a user's hand with a thumb, an index finger, a middle finger, a ring finger, and a small finger, comprising: a first region configured for the index finger and the thumb; a second region configured for the middle finger; a third region configured for the ring finger; and a fourth region configured for the small finger, wherein the second region has an at least approximately oval cross section with a first main axis and a first secondary axis, the third region has an at least approximately oval cross section with a second main axis and a second secondary axis, and the fourth region has an at least approximately oval cross section with a third main axis and a third secondary axis, wherein the first main axis or the third main axis is longer than the second main axis, and wherein the first secondary axis is shorter than the second and third secondary axes.