Boring apparatus for a laminated plate and boring cutter

An apparatus for boring a laminated plate comprising:

• (a) a table having a first surface on which a laminated plate may be placed for boring and an opposing second surface, said table defining at least one passage therethrough;
• (b) a supporting pad for urging a laminated plate to be bored towards the first surface of said table;
• (c) a cutter for boring a laminated plate to be bored, said cutter operable to bore in a direction generally opposite to the direction the supporting pad urges and through the passage defined by said table, said cutter being located on a cutter side of the table, said cutter comprising:
• (i) a knife edge having a cutting point adjacent one end and an air passage having a discharge opening in the vicinity of said cutting point:
• (ii) a pivotal mechanism having an axial center line, said pivotal mechanism adapted to be pivoted about said axial center line, and
• (iii) a stepping mechanism for moving the knife edge in one direction and successively further in a second direction so that successively deeper boring may be performed;
• (d) elements defining an accommodating chamber for chips and the like, the accommodating chamber being located on the cutter side of the table;
• and
• (e) a vacuum mechanism attached to the accommodating chamber.

A method of boring a multi-layered laminated plate comprising the steps of:

• pressing against the plate in one direction;
• boring the plate in a direction generally opposite to the direction in which it is pressed, said boring characterized in that a boring element with a pointed end is withdrawn between boring of each individual layer of the multi-layer plate;
• and
• blowing air towards the laminated plate in the direction in which it is bored, wherein the blown air passes through an air passage in the boring element having a discharge opening in the vicinity of the pointed end.

A boring apparatus for a laminated plate comprising:

• a. a table having a first surface on which a laminated plate may be placed for boring and an opposing second surface, said table defining at least one passage therethrough;
• b. means for urging a laminated plate to be bored toward the first surface of said table;
• and
• c. a cutter for boring a laminated plate to be bored, said cutter operable to bore in a direction generally opposite the direction that the means for urging urges and through the passage defined by said table, said cutter comprising:
• i. a cutting element having a pointed end and an axial center line, said cutting element adapted to be rotated about its axial center line, said cutting element further adapted to be moved in both directions along its axial center line;
• ii. means for rotating said cutting element about its axial center line;
• iii. means for moving said cutting element in both directions along its center line;
• and
• iv. an air passage having a discharge opening in the vicinity of said pointed end.

A boring apparatus for a laminated plate comprising:

• a. a table having a first surface on which a laminated plate may be placed for boring and an opposing second surface, said table defining at least one passage therethrough;
• b. a means for urging a laminated plate to be bored towards the first surface of said table;
• c. a supporting pad for urging a laminated plate to be bored toward the first surface of said table;
• d. a cutter for boring a laminated plate to be bored, said cutter operable to bore in a direction generally opposite the direction that the means for urging urges and through the passage defined by said table, said cutter comprising:
• i. a cutting element having a pointed end and an axial center line, said cutting element adapted to be rotated about its axial center line, said cutting element further adapted to be moved in both directions along its axial center line;
• ii. means for rotating said cutting element about its axial center line;
• iii. means for moving said cutting element in both directions along its center line;
• and
• iv. an air passage having a discharge opening in the vicinity of said pointed end:
• e. elements defining an accommodating chamber for chips and the like;
• and
• f. a vacuum mechanism attached to the accommodating chamber.

An apparatus for boring a laminated plate comprising:

• (a) a table having an upper surface on which a laminated plate may be placed for boring and an opposing lower surface, said table defining at least one passage therethrough;
• (b) a supporting pad for downwardly urging a laminated plate to be bored towards the first surface of said table, said supporting pad including portions defining an air passage therethrough;
• and
• (c) a cutter for boring a laminated plate to be bored, said cutter operable to bore in a generally upward direction and through the passage defined by said table, said cutter comprising:
• (i) a knife edge;
• (ii) a pivotal mechanism having an axial center line, said pivotal mechanism adapted to be pivoted about its axial center line;
• and
• (iii) a stepping mechanism for moving the knife edge in one direction and successively further in a second direction so that successively deeper boring may be performed.

An apparatus for boring a laminated plate comprising:

• (a) a table having an upper surface on which a laminated plate may be placed for boring and an opposing lower surface, said table defining at least one passage therethrough;
• (b) a supporting pad for downwardly urging a laminated plate to be bored towards the first surface of said table, said supporting pad has portions defining an air passage therethrough;
• and
• (c) a cutter for boring a laminated plate to be bored, said cutter operable to bore in a generally upward direction and through the passage defined by said table, said cutter being located on a cutter side of the table, said cutter comprising:
• (i) a knife edge,
• (ii) a pivotal mechanism having an axial center line, said pivotal mechanism adapted to be pivoted about said axial center line, and
• (iii) a stepping mechanism for moving the knife edge in one direction and successively further in a second direction so that successively deeper boring may be performed;
• (d) elements defining an accommodating chamber for chips and the like, the accommodating chamber being located on the cutter side of the table;
• and
• (e) a vacuum mechanism attached to the accommodating chamber.