US 4,905,421 AGranted

Disk grinding (sanding) machine

OwnerPeter Maier, Karl Attinger +1inventors

InventorsPeter Maier, Karl Attinger, Wolfgang Kuch

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Abstract

A disk grinding machine includes a grinding disk (5a), driven by a driving shaft. A handle projects laterally out of a machine housing and is covered by the machine housing. A dust suction installation with a suction hood is provided which covers the upper side of the grinding disk and overlaps its circumference. The installation contains a suction chamber having a bristle rim at its lower end which is fastened to the machine housing. The bristle rim extends only over a part of the circumference of the suction hood. The grinding dust is picked up through the area between the circumference of the grinding disk and the bristle rim and to the suction chamber (11a). The upper part of the suction hood is connected to the machine casing and a lower part of the hood is disposed pivotally and independent from the grinding disk and it supports a bristle rim. A handle for the machine comprises a control grip which is in a driving connection with the lower part of the hood through a drive.

Claims17

Dependent claims

A disk grinding machine, comprising a casing, a drive motor having a rotatable driving shaft disposed in said casing, a grinding disk connected to said driving shaft and driven into rotation by said driving shaft, a dust exhauster having a suction hood attached to said casing overlying and covering said grinding disk, said suction hood being spaced above and outwardly of the periphery of said grinding disk and defining a suction chamber, said suction hood having a downwardly extending rim portion defining a dust screening area extending over only a portion of the circumference of said disk and leaving a visual range part free around said disk and defining means for the sucking up of dust between the circumference of the grinding disk and said rim portion, said suction hood including an upper portion secured to said casing and a lower portion which is rotatable independently of said grinding disk, said rim portion being attached to said lower portion, a rotatable extension handle extending outwardly from said casing, an interengagement means interengaging said suction hood lower portion with said extension handle and effecting the rotation of said lower portion corresponding to the rotation of said extension handle.

Dependencies are inferred from the claim text.