Title:
METHODS OF FORMING LINEAR GROOVE IN CAR SKIN AND MEASURING/RECORDING RESIDUAL WALL THICKNESS AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2001/036180
Kind Code:
A1
Abstract:
An ultrasonic machining device (4) is moved, along a planned groove forming line, over the rear surface (3b) of a resin skin (3) having the front surface thereof closely fixed and held to the flat surface (1a) of a surface plate (1) to sequentially melt the skin resin via ultrasonic vibration and form a wide linear groove (6); a residual portion (6b) at the bottom of the linear groove (6) is photographed from one direction of the groove opening side by using a laser displacement sensor and a CCD camera (10) and is image-processed to thereby measure and record the wall thickness of the residual portion (6b), whereby making available a feedback material for forming the linear groove (6) with a good reproducibility.
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Inventors:
IKAWA MIKIHIRO (JP)
Application Number:
PCT/JP2000/007980
Publication Date:
May 25, 2001
Filing Date:
November 13, 2000
Export Citation:
Assignee:
PEARL KOGYO CO LTD (JP)
IKAWA MIKIHIRO (JP)
IKAWA MIKIHIRO (JP)
International Classes:
B29C59/00; B29C65/00; B29C65/08; B29C65/78; B60R21/20; B60R21/2165; G01B11/06; B29C35/02; (IPC1-7): B29C59/00; B60R21/20; G01B11/06
Foreign References:
| US5744776A | 1998-04-28 | |||
| JPH112510A | 1999-01-06 | |||
| JPH06218811A | 1994-08-09 |
Other References:
See also references of EP 1162054A4
Attorney, Agent or Firm:
Suzuye, Koichi (Osaka, JP)
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