Abrading – Machine – Endless band tool
Reexamination Certificate
2000-04-21
2001-09-04
Banks, Derris H. (Department: 3723)
Abrading
Machine
Endless band tool
C451S360000, C451S361000
Reexamination Certificate
active
06283841
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a sander, and more particularly to a sander having an adjustable sander member.
2. Description of the Prior Art
Typical sanders comprise one or more sander members rotatably secured in a housing and may not be adjusted relative to the housing, particularly may not be adjusted relative to the housing to various angular positions.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional sanders.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a sander having a sander member adjustable to various angular positions for facilitating the sanding operation to the work pieces.
In accordance with one aspect of the invention, there is provided a sander comprising a base including a platform secured thereon for supporting a work piece, a casing rotatably secured to the base at a pivot shaft, a sander member engaged on the casing and rotatable in concert with the casing about the pivot shaft for sanding the work piece, and means for securing the casing to the base at selected angular positions. The sander member may be rotated and adjusted relative to the platform at any selected angular position, and may be rotated and adjusted relative to the platform between a vertical position relative to the platform and a horizontal position parallel to or flush with the platform for allowing the work piece to be easily machined by the sander member.
The casing includes a plate extended therefrom and having a curved slot formed therein, the securing means includes a lock device engaged through the curved slot of the plate to lock the plate to the base. The lock device includes a pole extended from the base and slidably received in the curved slot of the plate, and a cam device pivotally secured to the pole and engaged with the plate for securing the plate to the base at any selected angular position.
The casing includes a first barrel and a second barrel rotatably secured thereon, the sander member is engaged around the first and the second barrels. A driving device is further provided for driving the sander member and includes a motor secured to the plate and having a spindle secured to the first barrel, such that the sander member may be driven by the motor via the barrels. A table is further secured to the motor and provided beside the first barrel for supporting the work piece to be machined by the sander member that is engaged over the first barrel.
The casing includes a support for rotatably supporting the second barrel. A device is further provided for moving the support and the second barrel relative to the casing to tighten and to release the sander member.
A stop is further secured to the casing and engaged over the sander member for engaging with the work piece and for allowing the work piece to be easily machined by the sander member. A cover is secured to the casing for shielding the first and the second barrels. A cap is detachably secured to the cover for shielding the first barrel and the sander member. A lid is rotatably secured to the cap for shielding the first barrel. The cap may include a port coupled to a vacuum device which may be used for drawing and collecting the dirt and the sanded materials removed from the work piece by the sander member.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.
REFERENCES:
patent: 4346536 (1982-08-01), Bryden
patent: 4628641 (1986-12-01), Lazzari
patent: 4939870 (1990-07-01), Wang
patent: 5476409 (1995-12-01), Wada et al.
Banks Derris H.
Baxley, Esq. Charles E.
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