Sanding method and apparatus
AssigneesMurunaka & Co., Ltd., Marunaka Kakoki Co., Ltd., Marunaka Tsusho Co., Ltd.
InventorsSuteyoshi Numao, Makoto Miyajima
Life of this patent
Estimating the term…
Abstract
Two juxtaposed sanding belts are pressed against a surface of a wood workpiece which is being fed on a table in a direction. The sanding belts are simultaneously reciprocally moved in mutually opposite directions along the workpiece feeding direction, thereby sanding the workpiece surface. Each of the sanding belts is oriented in a direction transverse to the feeding direction. The sanding belts are pressed against the workpiece surface by respective pads each having a pressing surface complementary in shape to the workpiece surface being sanded.
Claims35
A method of sanding a surface of a workpiece, comprising the steps of:
- feeding said workpiece in a feeding direction;
- providing a plurality of endless belt sanding members in juxtaposed relation substantially along said feeding direction such that said endless belt sanding members are oriented in a direction transverse to said feeding direction;
- pressing said endless belt sanding members against the surface of the workpiece;
- and
- reciprocally moving said endless belt sanding members simultaneously in mutually different directions along said feeding direction.
An apparatus for sanding a surface of a workpiece comprising:
- table means for feeding said workpiece thereon in at least one direction;
- and
- a sanding mechanism for pressing a sanding member against the surface of said workpiece to sand said surface, said sanding member comprising an endless belt sanding member oriented in a direction transverse to said one direction, wherein said sanding mechanism includes a body and feed means mounted on said body for intermittently feeding said endless belt sanding member by successive lengths toward said surface of the workpiece with successively new sanding areas of the endless belt sanding member.
An apparatus for sanding a surface of a workpiece comprising:
- table means for feeding said workpiece thereon in at least one direction;
- and
- a pair of sanding mechanisms for pressing respective endless belt sanding members against the surface of said workpiece to sand said surface, said endless belt sanding members being oriented in a direction transverse to said one direction, said sanding mechanisms including respective pads for pressing said sanding members against the surface of said workpiece, said sanding mechanisms being reciprocally movable in mutually different directions along said one direction.
An apparatus for sanding a surface of a workpiece, comprising:
- table means for feeding said workpiece thereon in at least one direction;
- and
- a sanding mechanism for pressing an endless belt sanding member against the surface of said workpiece to sand said surface, said endless belt sanding member being oriented in a direction transverse to said one direction, said sanding mechanism including a pad for pressing said sanding member against the surface of said workpiece, said pad having a pressing surface complementary in shape to said surface of said workpiece, said pad having a pressing surface complementary in shape to said surface of the workpiece and having at least one cut cut a predetermined depth into said pressing surface, said cut extending transversely to said one direction and dividing said pad into a plurality of pressing regions.
An apparatus for sanding a surface of a workpiece, comprising:
- table means for feeding said workpiece thereon in at least one direction;
- and
- a sanding mechanism for pressing a sanding member against the surface of said workpiece to sand said surface, said sanding member comprising an endless belt sanding member oriented in a direction transverse to said one direction, said sanding member having spaces therein for preventing the sanding member from being loaded and for radiating frictional heat produced when the surface of the workpiece is sanded by said sanding member.
Dependencies are inferred from the claim text.