Back to results
US 7,226,346 B2Granted
Sanding apparatus
AssigneeBlack & Decker Inc.
InventorsAndrew Walker, Tim McKay
Life of this patent
Estimating the term…
Abstract
A belt sander (2) comprising a housing (4) and having a lower sanding surface (40) and an upper sanding surface (42) opposite the first sanding is disclosed. The sander has a larger rear roller (32) driven by a motor (22), a front roller (34) of smaller diameter than the rear roller, and an endless sanding belt (38). A guard (48) is pivotable between a lowered position preventing access to the upper sanding surface and a raised position allowing access to the upper sanding surface. A handle (12) on the housing is pivotable between a first handle position adjacent the upper sanding surface and at least one second handle position further from the upper sanding surface than the first handle position.
Claims34
A sanding apparatus comprising:
- a housing defining a first base surface and a second base surface opposite said first base surface;
- at least one first roller and at least one second roller, wherein at least one said first roller has a diameter larger than a diameter of at least one said second roller;
- a motor driving at least one said first roller for causing an endless abrasive belt passing around at least one said first roller and at least one said second roller in use to move across said first and second base surfaces to define first and second sanding surfaces respectively;
- at least one guard member moveable between a first guard position preventing access to said second sanding surface and at least one second guard position allowing access to said second sanding surface;
- and
- at least one handle on said housing, wherein at least one said handle is moveable between a first handle position adjacent said second sanding surface and at least one second handle position further from said second sanding surface than said first handle position.
3 more elements
A power sander comprising:
- a housing, said housing comprising an upper portion and a lower wedge-shaped sanding base extending along a major axis, said upper portion including a motor receiving chamber disposed above said sanding base and an undersurface, said sanding base including a lower sanding surface;
- a rear roller disposed rearwardly of said sanding base and a front roller disposed forwardly of said sanding base, said rear roller having a larger diameter than said front roller, said front roller, said rear roller and said sanding base jointly defining a path for receiving an endless sanding belt, said motor receiving chamber disposed at a higher vertical position relative to said lower sanding surface than both said front roller and said rear roller and between the locations of said front roller and said rear roller along the major axis, said upper portion undersurface extending at a forwardly downwardly inclined angle from a location above said rear roller towards said front roller;
- and
- a motor disposed within said motor receiving chamber.
1 more element
A power sander comprising:
- a base having a lower sanding surface extending along a major axis;
- a rear roller disposed rearward of said base and a front roller disposed forward of said base, said rear roller having a larger diameter than said front roller;
- a housing having an undersurface extending at a forwardly downwardly inclined angle from a location above said rear roller towards said front roller, an open space defined between said undersurface and said base such that an endless loop of sandpaper may be received about said front roller, said rear roller and said base;
- a first gripping handle disposed above said rear roller and extending substantially parallel to the major axis from a location rearward of said rear roller to a location forward of said rear roller;
- and
- a second gripping handle extending substantially transversely to the major axis and disposed at a higher vertical location relative to said sanding surface than both said front roller and said rear roller and between the locations of said front roller and said rear roller along the major axis.
3 more elements
A power belt sander comprising:
- a housing, said housing comprising an upper portion and a lower wedge-shaped sanding base extending along a major axis, said sanding base including a lower sanding surface;
- a rear roller disposed rearwardly of said sanding base and a front roller disposed forwardly of said sanding base, said rear roller having a larger diameter than said front roller, said front roller, said rear roller and said sanding base jointly defining a path for receiving an endless sanding belt having a width of approximately 75 mm in a direction transverse to the major axis, said upper portion undersurface extending at a forwardly downwardly inclined angle from a location above said rear roller towards said front roller, said front roller having a diameter which is no greater than approximately 23 mm;
- and
- a motor.
1 more element
A power belt sander comprising:
- a base having a lower sanding surface having a major axis;
- a rear roller disposed rearward of said base and a front roller disposed forward of said base, said rear roller having a larger diameter than said front roller;
- a housing having an undersurface extending at a forwardly downwardly inclined angle from a location above said rear roller towards said front roller, an open space defined between said undersurface and said base such that an endless loop of sandpaper may be received about said front roller, said rear roller and said base;
- wherein,
- said front roller, said rear roller and said sanding base jointly define a path for receiving an endless sanding belt having a width of approximately 75 mm in a direction transverse to the major axis, said housing and said rollers configured so as to allow said sanding belt to sand a horizontal surface within 15 mm of a vertical wall extending up from said horizontal surface.
2 more elements
A power sander comprising:
- a housing, said housing comprising an upper portion and a lower wedge-shaped sanding base extending along a major axis, said upper portion overlying substantially all of said sanding base, said upper portion including a motor receiving chamber and a substantially flat surface portion disposed forwardly of said motor receiving chamber, said sanding base including a lower sanding surface;
- a rear roller disposed rearwardly of said sanding base and a front roller disposed forwardly of said sanding base, said rear roller and said sanding base jointly defining a path for receiving an endless sanding belt, said flat surface portion inclined downwardly from said motor receiving chamber towards said front roller;
- and
- a motor disposed within said motor receiving chamber.
1 more element
Dependencies are inferred from the claim text.