Title:
TURNTABLE IN NUMERICALLY CONTROLLED LATHE FOR WORKING OPTICAL LENS
Document Type and Number:
Japanese Patent JP3968029
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a turntable in a numerically controlled lathe for working optical lens holding the high precision for a long period by reducing the friction of a pivot, simplifying the maintenance, facilitating the assembling, improving the run out precision, reducing the cost and improving productivity of contact lenses and the like.
SOLUTION: This turntable is provided with the approximately top-shaped pivot 1 having an upward-enlarging tapered head part 11 in its upper part and a columnar part 12 in its lower part, a pivot case 2 having a tapered opening part 21 for supporting the head part 11 of the pivot 1 in its upper part and an insertion hole 22 for inserting the columnar part 12 of the pivot 1 in its lower part, and a turning means 4 tuning the pivot 1. Oil is preferably filled in the pivot case 2.
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Inventors:
Nobuaki Ando
Application Number:
JP2003028238A
Publication Date:
August 29, 2007
Filing Date:
February 05, 2003
Export Citation:
Assignee:
Nippon Seiki Co., Ltd.
International Classes:
B23B5/36; B23Q1/25; B23B21/00; (IPC1-7): B23B5/36; B23B21/00
Domestic Patent References:
| JP10296572A | ||||
| JP2001105201A | ||||
| JP493142A | ||||
| JP5615646U | ||||
| JP3109733U | ||||
| JP16987Y1 |
Attorney, Agent or Firm:
Hiroshi Matsuoka
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