Tip Engineering Group, Inc.

Other

Michael P Towler

Antonios Nicholas

Kenneth J Barnes

David J Bauer, Deceased

David J Bauer

John F Huber

John W Bauer, Jr, Legal Representative

Thomas W Weber

Andrew W Zichichi

An apparatus is disclosed for cutting a workpiece. A laser beam is directed at successive points along a workpiece surface to be cut and a sensor emits a sensing beam directed at the same successive points as the cutting beam. A beam combining device receives both the sensor beam and the cutting beam and causes downstream beam segments to be collinear with each other as they impinge the workpiece surface. The cutting is thereby able to be carried out in a single pass, and is precise, repeatable and independent of cutting depth, angle of cutting, scoring patterns, material inconsistency, material color, and surface grain variability.

Process for laser cutting a workpiece

Apparatus for laser cutting a workpiece

A method and apparatus is disclosed for forming lines of weakness in an automotive trim piece so as to enable formation of an airbag deployment opening in the trim piece. A cutting beam, such as a laser is directed at the trim piece surface to be scored and a sensor emits a sensing beam, and a beam combining device receives both the sensor beam and the laser beam and causes downstream beam segments to be collinear with each other as they impinge the trim piece surface. The scoring is thereby able to be carried out in a single pass, and is precise, repeatable and independent of cutting depth, angle of cutting, scoring patterns, material inconsistency, material color, and surface grain variability.

Process and apparatus for weakening an automotive trim piece for an airbag deployment opening

A trim piece construction for an air bag installation in which a scrim sheet is bonded onto the inside of the trim piece at the air bag location, and having one or more unbonded sections folded onto one or more air bag canister sides and attached thereto. The scrim sheet overlaps a deployment door panel and is bonded to surrounding regions to restrain relative movement by attachment to the canister. Fragmentation of the door panel is reduced by bonding of the sheet to the door panel. The door panel hinge is held in position to avoid windshield impact as the door panel hinges open when the air bag deploys.

Trim piece construction for an air bag installation

Process and apparatus for precision scoring a workpiece of variable thickness and/or shape in which the thickness of the workpiece at points along a trace pattern is first determined, and a variable depth groove is thereafter formed by laser scoring which is controlled in correspondence with the previously determined thickness values. These values can be determined by scanning opposite surfaces on the surface of a locating fixture and a surface of the workpiece. Robot manipulators are used for scanning and scoring, and the power of the laser and/or the trace velocity are controlled to vary the degree of scoring. The scoring is used to special advantage for precision preweakening of auto trim pieces for creating an air bag deployment opening.

Laser scoring process and apparatus

An arrangement and method are disclosed for enabling formation of a deployment opening for an air bag in a hard plastic trim piece with or without vinyl cladding in which a hinged reinforcing patch panel is fixedly attached to a section of the hard plastic defined by a preweakening groove pattern.

Automotive interior trim piece having an arrangement for forming an air

An arrangement is disclosed for forming an air bag deployment opening in an instrument panel behind which a passenger side air bag is stored, just prior to the time the air bag is deployed, the arrangement including a pressure driven cutting edge cutting through the covering layer at the start of air bag deployment. A pyrotechnic charge ignited by the air bag ignition circuitry is used to develop the pressure, and various devices used to drive the cutting edge, including a flattened tube enclosing the charge and expanded by ignition of the charge. A separate door substrate panel and frame are fit into a preformed opening in the instrument panel, and the tube may be mounted to the door substrate panel, the frame, or a separate membrane.

Growing community of inventors

Ann Arbor, MI, United States of America

Michael P Towler