Vacuum device
AssigneeHilti Aktiengesellschaft
InventorHans Appel
Life of this patent
Estimating the term…
Abstract
A vacuum device for a drilling hand tool includes a housing, a connection piece, a blower, and a collecting vessel. A drilling tool can be plugged into and through the connection device along a working axis. The blower conveys dust-laden air from the connection piece into the collecting vessel. The connection vessel includes a tray cartridge which can be removed from the housing, and a locking bar. The locking bar is hinged on the tray cartridge or on the housing and can pivot between a locking position and an unlocked position. When the locking bar is in the locking position, it presses the tray cartridge against the housing to provide pretensioning.
Claims19
A vacuum device for a hand tool, comprising:
- a housing;
- a connection piece configured to mate with a hand tool;
- a collecting vessel having a tray cartridge which can be removed from the housing, wherein the tray cartridge includes a tray basin and a pivotable lid which closes the tray basin in the direction opposite a removal direction;
- a blower configured to convey dust-laden air from the connection piece into the collecting vessel;
- and
- a locking bar pivotally connected to either the tray cartridge or the housing for movement between a locking position and an unlocked position, wherein the locking bar, when in the locking position, presses the tray cartridge against the housing to provide pretensioning.
A vacuum device for a hand tool, comprising:
- a housing;
- a connection piece configured to mate with a hand tool;
- a collecting vessel having a tray cartridge which can be removed from the housing;
- a blower configured to convey dust-laden air from the connection piece into the collecting vessel;
- a locking bar pivotally connected to either the tray cartridge or the housing for movement between a locking position and an unlocked position, wherein the locking bar, when in the locking position, presses the tray cartridge against the housing to provide pretensioning;
- and
- a seal between the housing and the tray cartridge, wherein the seal comprises two seal rings which are displaced with respect to each other along an air stream through the tray cartridge, and wherein the seal rings each surround the air stream around its periphery.
Dependencies are inferred from the claim text.