Title:
CASSETTE CASE DEFECTIVE DETECTING METHOD, PUNCHING DIE, BEND LINE FORMING DIE, CASSETTE CASE UNFOLDED ORIGINAL PUNCHING PLATE, CASSETTE CASE UNFOLDED ORIGINAL PLATE
Document Type and Number:
Japanese Patent JPH05154721
Kind Code:
A
Abstract:
PURPOSE: To simply and correctly detect the abnormality of the case size when manufacturing a cassette case.
CONSTITUTION: Reference holes 2 are concurrently bored at portions to be overlapped in assembling when an original is punched. Bend lines 4 for assembling are formed. Marking recesses 5 are formed at positions in coincidence with the reference holes 2 with a bend line forming die. The displacement defect of the bend lines 4 is judged when the coincidence or noncoincidence between the reference holes 2 and the marking recesses 5 is detected.
Inventors:
AONO MASAKI
Application Number:
JP32326191A
Publication Date:
June 22, 1993
Filing Date:
December 06, 1991
Export Citation:
Assignee:
KONISHIROKU PHOTO IND
International Classes:
B23P19/00; B31B50/25; B65D85/575; (IPC1-7): B23P19/00; B31B1/25; B65D85/575
Attorney, Agent or Firm:
Naoki Fukumura