Title:
METHOD AND DEVICE FOR MACHINING CRACKING GROOVE FOR CONNECTING ROD
Document Type and Number:
WIPO Patent Application WO/2006/057259
Kind Code:
A1
Abstract:
A method and a device for machining a cracking groove for a connecting rod, wherein a drive pulley (72) is rotated under the driving action of a rotatingly driving source (68) installed in a body (14) to transmit the rotatingly driving force of the drive pulley (72) to a driven pulley (74) through a drive force transmission belt (76) so as to rotate a groove machining part (24) integrally connected to the driven pulley (74). In the groove machining part (24), a spindle (34) integrally connected to the driven pulley (74) is rotatably supported on a support part (32), and a metal saw (36) having a plurality of blade parts (54) on the outer peripheral surface thereof is installed on the holding part (48) of the spindle (34). A first groove (88) of roughly V-shape in cross section is formed in the large end hole (20) of a connecting rod (18) by inserting the metal saw (36) into the large end hole (20) of the connecting rod, and a second groove (90) of roughly V-shape in cross section which is symmetrical with the first groove (88) is formed in the connecting rod (18) at a position opposed to the first groove (88) with respect to the axis of the connecting rod.
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Inventors:
Okumura, Hideki c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
Koguchi, Tsuguo c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
Koguchi, Tsuguo c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
Application Number:
PCT/JP2005/021488
Publication Date:
June 01, 2006
Filing Date:
November 22, 2005
Export Citation:
Assignee:
HONDA MOTOR CO., LTD. (1-1 Minami-Aoyama 2-chome, Minato-ku Tokyo, 56, 10785, JP)
Okumura, Hideki c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
Koguchi, Tsuguo c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
Okumura, Hideki c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
Koguchi, Tsuguo c/o HONDA MOTOR CO. LTD. (1-1, Minami-Aoyama 2-chome, Minato-k, Tokyo 56, 10785, JP)
International Classes:
B23C3/30; B23P13/00
Attorney, Agent or Firm:
Chiba, Yoshihiro (Shinjuku Maynds Tower 16F, 1-1 Yoyogi 2-chom, Shibuya-ku Tokyo 53, 15100, JP)
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