US 5,419,737 AGranted

Random orbital sanding machine having a removable debris container

AssigneeRyobi Motor Products Corp.

InventorsKenneth M. Brazell, Robert G. Everts, Naoki Kikuchi

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Abstract

A palm grip random orbital sanding machine having a housing and an electric motor disposed in the housing which drives an attached platen along a random orbital path. An exhaust fan disposed in an exhaust chamber produces an air flow from the vicinity of the platen out through an exhaust port. The housing has a pair of longitudinal slots provided on opposite sides thereof which removably receive the legs or side members of a U-shaped debris container. Each side member of the debris container has an entrance port coincident with the exhaust port of the exhaust chamber, and means for filtering the debris from the air flow exiting the side members. The commutator and brushes of the electric motor are disposed intermediate the longitudinal slots and the brushes are disposed parallel to the longitudinal axis of the sanding machine.

Claims27

Dependent claims

A surface treating tool comprising:

a housing having a pair of longitudinal slots provided along opposite sides thereof;
an electric motor disposed in said housing, said electric motor having a vertically oriented output shaft;
a platen disposed normal to said output shaft, said platen having a surface for supporting an abrasive element;
an eccentric rotatably connecting said platen to said output shaft, said platen responsive to the rotation of said eccentric by said electric motor to move with an orbital motion in the plane of said surface;
a U-shaped debris container removably attachable to said housing, said U-shaped debris container having a pair of spatially separated substantially parallel hollow side members, each of said hollow side members being slidably receivable in a respective one of said pair of longitudinal slots on opposite sides of said housing, each of said hollow side members having an entrance port, and filter means for removing said debris from said air flow as it exits each hollow side member of said debris container;
and
means disposed in said housing for producing an exhaust air flow to draw debris from the vicinity of said platen into said debris container through said entrance port in response to the rotation of said output shaft.

4 more elements

A random orbital sanding machine comprising:

a housing having a longitudinal axis and a vertical axis normal to said longitudinal axis, said housing having a pair of slots provided on opposite sides thereof parallel to said longitudinal axis;
an electric motor mounted in said housing, said motor having an output shaft disposed parallel to said vertical axis;
a platen disposed normal to said vertical axis and adjacent to a bottom surface of said housing, said platen having a surface for supporting an abrasive element, said platen further having a plurality of holes provided therethrough in a direction parallel to said vertical axis;
an eccentric element having one end fixedly attached to said output shaft and a second end rotatably attached to said platen;
a U-shaped debris container removably attachable to said housing, said U-shaped debris container having a pair of spatially separated hollow portions substantially parallel to each other and connected to each other at one end thereof by a transverse portion, each of said hollow portions being slidably receivable in a respective one of said pair of longitudinal slots on opposite sides of said housing, each of said hollow portions having an entrance port;
means disposed in said housing for producing an air flow to draw debris from the vicinity of said platen into said debris container through said entrance port in response to the rotation of said output shaft;
and
means for locking said U-shaped debris container on said motor housing.

5 more elements

Dependencies are inferred from the claim text.