CUTTING DEVICE FOR THIN METALLIC PLATE

Title:

CUTTING DEVICE FOR THIN METALLIC PLATE

Document Type and Number:

WIPO Patent Application WO/2004/089568

Kind Code:

A1

Abstract:

A cutting device for thin metallic plate, capable of shortening the time required for shaping etc. of a cut edge to enhance production efficiency and extending life of an edge tool. The cutting device cuts a thin plate (W) made of metal to a predetermined width and has a press cut edge tool (7) made of a metal with higher hardness than the thin plate (W) and having an edge angle of 50-90º. The cutting device further has a contact tool (5) having a groove (8) that is opposed to the press cut edge tool (7) and coming in contact with the back face of the thin plate (W). The groove (8) is formed such that the distance (a) between upper edges (9a, 9b) is 15-30 times as large as the thickness of the thin plate (W), and that the depth (c) of a deepest portion (11) of the groove (8) is 1-3 times as deep as the thickness (b). Curved surfaces (10) are provided on both inner walls (9) of the groove (8), and their curvature radius is made 15-50 times as large as the thickness (b).

Inventors:

Minowa, Yoshiyuki c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Haga, Fumitaka c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Yoshimura, Takeshi c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Nagao, Yuichi c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Fujiyama, Takeyuki c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Nakamura, Taro c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)

Application Number:

PCT/JP2004/005031

Publication Date:

October 21, 2004

Filing Date:

April 07, 2004

Export Citation:

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Assignee:

HONDA MOTOR CO. LTD. (1-1 Minami-Aoyama 2-chome, Minato-ku Tokyo, 56, 10785, JP)
Minowa, Yoshiyuki c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Haga, Fumitaka c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Yoshimura, Takeshi c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Nagao, Yuichi c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Fujiyama, Takeyuki c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)
Nakamura, Taro c/o HONDA ENGINEERING KABUSHIKI KAISHA (10-1 Shin-Sayama 1-chome, Sayama-sh, Saitama 81, 35013, JP)

International Classes:

B23D35/00; B26D1/00; B26D3/16; B23D21/00; B23D21/04; B23D35/00; B26D1/00; B26D3/16; B23D21/00; (IPC1-7): B23D21/00

Attorney, Agent or Firm:

Sato, Tatsuhiko (Shinjuku Maynds Tower 16F, 1-1 Yoyogi 2-chome, Shibuya-k, Tokyo 53, 15100, JP)

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