Setting tool
AssigneeHilti Aktiengesellschaft
InventorsTilo Dittrich, Norbert Heeb
Life of this patent
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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.
Claims15
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.
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.
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.
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.
Dependencies are inferred from the claim text.