# US 11,992,924 B2 · Setting tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,924 B2 - Document ID: US11992924B2 - Status: Granted - Kind: B2 - Application number: 17/055,450 - Filed: 2019-05-29 - Published: 2021-06-17 - Granted: 2024-05-28 - Earliest claimed: 2018-06-06 - Assignees: Hilti Aktiengesellschaft - Applicants: Hilti Aktiengesellschaft - Inventors: Tilo Dittrich; Norbert Heeb - Web page: https://patentgrep.com/patent/US11992924B2 ## CPC - B25C 1/06: operated by electric power - B25C 1/003: {for belts of nails} - B25C: HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS (for shoemaking A43D) ## Abstract A setting tool for driving fastening elements into a substrate is provided, the setting tool comprising a holder, which is provided for holding a fastening element, a drive-in element, which is provided for transferring a fastening element held in the holder into the substrate along a setting axis, a drive, which is provided for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an electrical capacitor, which is arranged on the setting axis or around the setting axis. ## Claims ### Claim 1 A setting tool for driving fastening elements into a substrate, comprising a holder for holding a fastening element; a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an excitation coil, wherein current flows through the excitation coil and generates a magnetic field which accelerates the drive-in element onto the fastening element; and, a stop element, which supports the drive-in element against movement toward the excitation coil when the drive-in element is in a ready-to-set position, the drive-in element being spaced apart from the excitation coil in the ready-to-set position, wherein a projection of the stop element in a direction of the setting axis is arranged radially inside a projection of the excitation coil in the direction of the setting axis. ### Claim 2 (depends on 1) The setting tool as claimed in claim 1, wherein the stop element is arranged radially inside the excitation coil with respect to the setting axis. ### Claim 3 A setting tool for driving fastening elements into a substrate, comprising a holder for holding a fastening element a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an excitation coil and a soft-magnetic frame on which the excitation coil is arranged, wherein the soft-magnetic frame is formed in a ring shape, and wherein a projection of the stop element in a direction of the setting axis is arranged radially inside a projection of the soft-magnetic frame in the direction of the setting axis, wherein current flows through the excitation coil and generates a magnetic field that creates a Lorentz force which repels the drive-in element from the excitation coil onto the fastening element; and, a stop element, which supports the drive-in element against movement toward the excitation coil when the drive-in element is in a ready-to-set position, the drive-in element being spaced apart from the excitation coil in the ready-to-set position. ### Claim 4 (depends on 3) The setting tool as claimed in claim 3, wherein the drive-in element is spaced apart from the soft-magnetic frame in the ready-to-set position. ### Claim 5 (depends on 3) The setting tool as claimed in claim 3, wherein a further air gap is formed between the drive-in element and the soft-magnetic frame when the drive-in element is in the ready-to-set position. ### Claim 6 (depends on 3) The setting tool as claimed in claim 3, wherein the stop element is arranged radially inside the soft-magnetic frame with respect to the setting axis. ### Claim 7 A setting tool for driving fastening elements into a substrate, comprising a holder for holding a fastening element; a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an excitation coil, wherein current flows through the excitation coil and generates a magnetic field which accelerates the drive-in element onto the fastening element; and, a stop element, which supports the drive-in element against movement toward the excitation coil when the drive-in element is in a ready-to-set position, the drive-in element being spaced apart from the excitation coil in the ready-to-set position, wherein the stop element and/or the drive-in element comprises a damper which has a stop surface or a counter surface, wherein the damper dampens striking of the drive-in element against the stop element. ### Claim 8 A setting tool for driving fastening elements into a substrate, comprising a holder for holding a fastening element a drive-in element for transferring a fastening element held in the holder into the substrate along a setting axis; a drive for driving the drive-in element toward the fastening element along the setting axis, wherein the drive comprises an excitation coil, wherein current flows through the excitation coil and generates a magnetic field that creates a Lorentz force which repels the drive-in element from the excitation coil onto the fastening element and, a stop element, which supports the drive-in element against movement toward the excitation coil when the drive-in element is in a ready-to-set position, the drive-in element being spaced apart from the excitation coil in the ready-to-set position, wherein the stop element has a stop surface that faces the holder and the drive-in element has a counter surface that faces away from the holder, and wherein the stop surface and the counter surface lie against one another when the drive-in element is in the ready-to-set position, wherein the stop surface and/or the counter surface is convex, and wherein the stop surface and/or the counter surface is spherical. ### Claim 9 (depends on 8) The setting tool as claimed in claim 8, wherein an air gap is formed between the drive-in element and the excitation coil when the drive-in element is in the ready-to-set position. ### Claim 10 (depends on 9) The setting tool as claimed in claim 9, wherein the air gap has a gap width which is between 0 and 0.5 mm. ### Claim 11 (depends on 10) The setting tool of claim 10, wherein the gap width is between 0.01 mm and 0.2 mm. ### Claim 12 (depends on 11) The setting tool of claim 11, wherein the gap width is between 0.02 mm and 0.1 mm. ### Claim 13 (depends on 8) The setting tool as claimed in claim 8, wherein the stop surface and/or the counter surface is arranged on the setting axis or around the setting axis. ### Claim 14 (depends on 13) The setting tool as claimed in claim 13, wherein the stop surface and/or the counter surface is convex. ### Claim 15 (depends on 8) The setting tool of claim 8, comprising a hand-held setting tool.