Percussive power tool with flushing head

Details Percussive power tool with flushing head Percussive power tool with flushing head

2007-08-07

2007-08-07

Sipos, John (Department: 3721)

Tool driving or impacting

Impacting devices

Hammer head driven by electric motor

C173S128000, C173S132000, C173S138000, C408S057000, C408S059000

Reexamination Certificate

active

11149369

ABSTRACT:
A power tool (1) having a striking means (5), by which a percussive tool (2) that can be driven at least partially along an axis (A) struck directly and having a flushing bore (4) extending at least partially longitudinally through a tool shank (3), and having a flushing head (6) having a radially inwardly open transverse bore hole (8) connected in a flow-through fashion with a fluid channel (7). The flushing head (6) has at least one hollow cylindrical sleeve-like guide surface (9), which is fitted for an insertion end (10) of the striking tool (2). The striking means (5) sealed by a seal (11a,11b) is cup-like. The striking means (5) is moveably guided and made fluid tight by the seal (11a,11b) to embrace the machine-side part of the insertion end (10) having the machine-side open flushing bore (4).

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