Patent · US Expired

Screw driving device

US6952853B2 · kind B2 · utility

3Cited by

4References

8Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Horst Rahmsdorf · Munich, DE
Gerd Daubinger · Munich, DE
Felix Ferlemann · Windach, DE

Key dates

Filing date	Dec 12, 2002
Grant date	Oct 11, 2005
Priority date	—
Expiry date	Dec 12, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25B23/06
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A screw driving device (2) for a hand tool drilling device (1) includes a screw magazine (3) for successive feeding of screws or bolts (4), a feeder block (6) that can be axially displaced against the force of a feeder spring (5), which at least partially supplies screws (4) during the back and forth reciprocating movement of the feeder block (6), and a driving tool (8) that can be coupled rotationally in form locked manner with a screw head (7), wherein the driving tool (8) axially moveably receives a rotatingly driven drilling tool (9) in a coaxial hollow inner space and is spring biased axially by a clutch spring (10) relative to the screw driving device in a rotation driver position X, in which a drilling tool tip (11) is axially spaced from the screw head (7) and is coupled rotationally form locked with the driving tool (8).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.