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Title:
METHOD FOR MANUFACTURING ELEMENT FOR BELT OF CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2010/125876
Kind Code:
A1
Abstract:
Provided is a method for manufacturing an element for a CVT belt, comprising a body portion (22L, 22R) having right and left sides and a tapered portion with a downwardly reducing width, a neck portion extending upward from the body portion, and a head portion extending upward from the neck portion. The manufacturing method comprises a first punching step in which a metal strip blank (31) which has a uniform thickness and a width which makes it possible to obtain elements arrayed on an even number of lines in an arrangement in which the head portions are opposed to each other or an arrangement in which the body portions are opposed to each other, is punched along an outline (33L, 33R) of an excess material (21b) added to profiles of the left and right sides (21L, 21R) of the body portion, and along an outline (58L, 58R) of an excess material (32b) added to a profile of a lower side (32L, 32R) of the body portion; a plastic deformation step in which the blank is compressed in the thickness direction to form a predetermined projection and depression, and form the tapered portion while displacing the material in the outline directions; and a second punching step in which the element is obtained as a product by punching the blank.

Inventors:
OKUBO, Naruhiko (6-1, Hagadai, Hagamachi, Hagagu, Tochigi 95, 〒3213395, JP)
大久保 成彦 (〒95 栃木県芳賀郡芳賀町芳賀台6番地1 ホンダエンジニアリング株式会社内 Tochigi, 〒3213395, JP)
SANDA, Kazuyuki (6-1, Hagadai, Hagamachi, Hagagu, Tochigi 95, 〒3213395, JP)
三田 和之 (〒95 栃木県芳賀郡芳賀町芳賀台6番地1 ホンダエンジニアリング株式会社内 Tochigi, 〒3213395, JP)
Application Number:
JP2010/055074
Publication Date:
November 04, 2010
Filing Date:
March 24, 2010
Export Citation:
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Assignee:
HONDA MOTOR CO., LTD. (1-1 Minami-Aoyama 2-chome, Minato-ku Tokyo, 56, 〒1078556, JP)
本田技研工業株式会社 (〒56 東京都港区南青山二丁目1番1号 Tokyo, 〒1078556, JP)
OKUBO, Naruhiko (6-1, Hagadai, Hagamachi, Hagagu, Tochigi 95, 〒3213395, JP)
大久保 成彦 (〒95 栃木県芳賀郡芳賀町芳賀台6番地1 ホンダエンジニアリング株式会社内 Tochigi, 〒3213395, JP)
SANDA, Kazuyuki (6-1, Hagadai, Hagamachi, Hagagu, Tochigi 95, 〒3213395, JP)
International Classes:
B21D28/00; B21D53/14; F16G5/16
Foreign References:
JPS63199943A1988-08-18
JP2004017045A2004-01-22
JP2002213539A2002-07-31
JP3703678B22005-10-05
Other References:
See also references of EP 2425907A1
Attorney, Agent or Firm:
SHIMODA, Yo-ichiro (Meisan Tameike Bldg, 1-12 Akasaka 1-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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