Title:
クランクシャフトの矯正金型
Document Type and Number:
Japanese Patent JP7294088
Kind Code:
B2
Abstract:
To make it possible to easily adjust an initial balance position of a crank shaft to a desired range by appropriately responding to changes over time during mass production.SOLUTION: An upper die 102 and a lower die 103 respectively have: a base part 2; a crank pin correction part 3 which stands up from the base part 2, and includes a pin correction face 35; a journal correction part 4 which stands up from the base part 2, and includes a journal correction face 45; and a counter-weight adjustment block 5 which is detachably fixed to the base part 2 between the crank pin correction part 3 and the journal correction part 4, and includes a counter-weight correction face 55. The counter-weight adjustment block 5 is detachably provided between a bottom surface 51 and the base part 2 via a spacer 6, and is so configured as to be capable of changing a positional relation among the counter-weight correction face 55, the pin correction face 35 and the journal correction face 45 by changing a thickness of the spacer 6.SELECTED DRAWING: Figure 5
Inventors:
Keigo Goto
Application Number:
JP2019214560A
Publication Date:
June 20, 2023
Filing Date:
November 27, 2019
Export Citation:
Assignee:
Aichi Steel Co., Ltd.
International Classes:
B21D3/10; B21D37/02; F16C3/20
Domestic Patent References:
| JP5169177A | ||||
| JP2003136181A | ||||
| JP2006247728A |
Foreign References:
| WO2014038183A1 | ||||
| WO2015075924A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Aichi International Patent Office