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Patent Searching and Data


Title:
PIERCING DEVICE
Document Type and Number:
Japanese Patent JPS6422422
Kind Code:
A
Abstract:

PURPOSE: To enable continuous piercing safely and sanitarily by holding a driv ing lever by a holding mechanism at the retreating position drawn into the inner part of a cylindrical body, moving a ball nut forward by turning a ball screw and compressing a spring.

CONSTITUTION: A pair of linking members 72, 72 are made linear in parallel to the axial direction of a cylindrical body 3 by retreating a grip 8 to the driv ing lever 42 of the inside of the cylindrical body 3 and turning a locking member 74, the flange 44 of a plunger 42 and locking member 74 and locked and the driving lever 4 is held at the rear position of the cylindrical body 3, and the piercing tool 45 of the tip of the driving lever 42 is buried into the cylindrical body 3. Simultaneously a motor 54 is rotated in a position direction via a con trol part 9 by the electric signal of the moving position of the driving lever 42 and the ball nut 61 meshed with a ball screw 51 is moved forward to com press a spring 65. When a work lever 76 is turned centering around the shaft 71, the driving lever 4 is released and advanced by the elastic force of the spring 65, the piercing tool 45 is projected to the front of the cylindrical body by the specified length from the base end face 34 of the cylindrical body 3, and piercing is executed on a deck plate 10.


Inventors:
SATO YOSHINOBU
USUI AKIRA
HASHIMOTO FUJIO
SUGAWARA CHOICHI
Application Number:
JP17668787A
Publication Date:
January 25, 1989
Filing Date:
July 15, 1987
Export Citation:
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Assignee:
SANKI ENG CO LTD
DAIICHI ELECTRIC
International Classes:
B21D28/20; B21D28/34; B21D31/02; B26F1/32; (IPC1-7): B21D28/20; B21D31/02; B26F1/32
Attorney, Agent or Firm:
Nozawa Mutsumi