Traveling circular saw

A cutting machine, particularly for plates of plastic material and non-ferrous metal sheets, having a table for the material to be cut and at least one cutting blade rotatably accommodated in a protecting casing or guard casing, a motor for driving said cutting blade in such a direction that the portion of said cutting blade projecting from the guard casing enters into said guard casing at the cutting place, a rim defining an opening of said guard casing through which said blade projects with very small clearance, said rim thus being closely adjacent said blade at least near said cutting place, said guard casing, cutting blade and motor together defining a cutting unit, first means for shifting said cutting unit longitudinally in a direction parallel to said table and parallel to the plane of said cutting blade for cutting with and resetting of the cutting unit, and second means for shifting said cutting unit in a direction perpendicular to said table and parallel to the plane of said cutting blade for uniformly applying said guard casing with said rim against the material to be cut at least near said cutting place in order to prevent bending and splitting of the material by the cutting forces of said blade entering into the guard casing and for lifting off said cutting unit from said table and from said material to be cut, respectively.

A cutting machine, particularly for plates of plastic material and non-ferrous metal sheets, having a table for the material to be cut and at least one cutting blade rotatably accommodated in a protecting casing or guard casing, a motor for driving said cutting blade in such a direction that the portion of said cutting blade projecting from the guard casing enters into said guard casing at the cutting place, a rim defining an opening of said guard casing through which said blade projects, said rim being closely adjacent said blade at least near said cutting place, said guard casing, cutting blade and motor together defining a cutting unit, first means for shifting said unit in a horizontal direction parallel to said table, and second means for shifting said unit in a vertical direction, said cutting unit having a handle for lifting it, and a fixed hand rest located above said handle on a support shiftable along said first means, said guard casing with said rim being applied against the material to be cut at least near said cutting place in order to prevent bending and splitting of the material by the cutting forces of said blade when said handle is released for lowering said cutting unit.

A cutting machine, particularly for plates of plastic material and non-ferrous metal sheets, having a table for the material to be cut and at least one cutting blade rotatably accommodated in a protecting casing or guard casing, a motor for driving said cutting blade in such a direction that the portion of said cutting blade projecting from the guard casing enters into said guard casing through which said blade projects, said rim being closely adjacent said blade at least near said cutting place, a single guide rod allowing shifting of said guard casing, blade and motor parallel to said table, a separating tong mounted on said guard casing engaging a guide groove of said table as an additional guide means, for accurately keeping said guard casing and blade in a cutting position, and means for applying said guard casing with said rim against the material to be cut at least near said cutting place in order to prevent bending and splitting of the material by the cutting forces of said blade.