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Patent Searching and Data


Title:
パイプ切断装置
Document Type and Number:
Japanese Patent JP2012516778
Kind Code:
A
Abstract:
The invention relates to a pipe cutting apparatus, comprising a tubular or box-like frame (1), a pipe clamp (9) inside the frame for immobilizing a pipe (P) to be cut, an annular blade carrier (3) rotatably bearing-mounted on the frame and provided with a central opening for the pipe to pass through, one or more blade arms (4) in attachment with the annular blade carrier (3) for movement mainly in a radial direction or in a slightly off-radial direction, a cutting blade (5) mounted on the blade arm (4), and means for actuating the blade arm (4) to enable feeding the cutting blade (5), rotating outside the pipe, towards the pipe for cutting the same by shearing. The means for ac-tuating the blade arm (4) include a spiral groove disc (6) rotatably bearing-mounted alongside the annular blade carrier (3), featuring a spiral groove (7) and a transition fin (8) extending from the blade arm (4) to the spiral groove (7), as well as elements (11, 12) for rotating the annular blade carrier (3) and the spiral groove disc (6) at a desired rotation speed ratio relative to each other.

Inventors:
Leo Laricca
Application Number:
JP2011546896A
Publication Date:
July 26, 2012
Filing Date:
January 28, 2010
Export Citation:
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Assignee:
Larikka OY
International Classes:
B23D21/00
Domestic Patent References:
JPS5993202A1984-05-29
JPS60197304A1985-10-05
JPH0261525U1990-05-08
JPS5565048A1980-05-16
JPS5241519B11977-10-19
Foreign References:
US4608755A1986-09-02
US5609081A1997-03-11
US4475421A1984-10-09
Attorney, Agent or Firm:
Hiroshi Yamazaki
Mitsuo Tanaka
Etsuko Isoe
Noriyuki Iwaki