Manufacturing method for key tops

Plastic and nonmetallic article shaping or treating: processes – Laser ablative shaping or piercing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

264511, 264554, 264132, 264266, B29C 4318, B29C 5110, B29C 5916

Patent

active

058208097

ABSTRACT:
A manufacturing method for key tops includes the steps of molding a light-shielding film on a to-be-peeled shield by a plane printing, effecting colored printing to provide a readout part at a predetermined position on it in the state of a plane sheet prior to the 3-D molding, then sucking a printed light-shield film sheet on a metal mold with an evacuation system, adsorbing said light-shield film sheet onto the wall face in the metal mold. A push mold may be used with a suction system so as to be positioned in the female mold. Materials such as silicone are put into this metal mold for one-piece molding. A laser processing is effected on the surface of a key top prepared in a 3-D shape to form a desired pattern. By making the light-shield printing and pattern printing in the state of a plane sheet prior to the 3-D molding and effecting only a pattern processing by laser cut in the state of a stereographic shape, a laborious coating has been omitted which also results in improved accuracy of printing and at the same time a reduced number of steps.

REFERENCES:
patent: 4369157 (1983-01-01), Conner
patent: 4500218 (1985-02-01), Nishikawa
patent: 4657419 (1987-04-01), Takakuwa
patent: 4710330 (1987-12-01), Lewandowski et al.
patent: 5514319 (1996-05-01), Young
patent: 5573107 (1996-11-01), Nakano et al.
patent: 5589121 (1996-12-01), Inagaki et al.
patent: 5655826 (1997-08-01), Kouno et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Manufacturing method for key tops does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacturing method for key tops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacturing method for key tops will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-310312

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.