Title:
DEVICE FOR CHALKING EYELESS NEEDLE
Document Type and Number:
Japanese Patent JP3197044
Kind Code:
B
Abstract:
PURPOSE: To enable an accurate and stable chalking by reducing effect of generated sliding resistance acting on chalking force of an upper die by fixing the upper die to a lever so that the sliding area is limited the part between a center of rotation an a supporting member when the upper die approaches the lower die.
CONSTITUTION: The base part of an eyeless needle inserted between the lower die 2 and the upper die 1 is chalked while the upper die 1 approaches and is separated from the lower die 2 fixed to a base frame 4. The lever 3 having an axis 5 as a center of rotation which is arranged in the same direction as the lengthwise direction of the base end part of the eyeless needle and is supported with a length longer enough compared to a length to be chalked at the base end part of the eyeless needle is provided at a position far enough from a contact point between the lower die 2 and the upper die 1. A support member supporting the center of rotation of this lever 3 and the upper die 1 facing the lower die 2 and fixed to the lever 3 are provided. Consequently, a fixed chalking force can be acted on the upper die and the eyeless needle having a fine diameter can be chalked with accuracy.
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Inventors:
Matsutani, Kanji
Application Number:
JP1992000034025
Publication Date:
June 08, 2001
Filing Date:
January 27, 1992
Export Citation:
Assignee:
MATSUTANI SEISAKUSHO CO LTD
International Classes:
A61B17/04; A61B17/06; B21D39/00; B21G1/08; B23P11/00; A61B17/04; A61B17/06; B21D39/00; B21G1/00; B23P11/00; (IPC1-7): B21D39/00; A61B17/04
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