Title:
CASE
Document Type and Number:
WIPO Patent Application WO/2023/286628
Kind Code:
A1
Abstract:
This case (1) includes a lattice structure part (20) in which a plurality of unit cells (21) are arranged in three directions. The lattice structure part is formed integrally with an outer surface (6) or an inner surface (7) of the case wall using metal additive manufacturing. Each unit cell is formed in a cell space (22). Each unit cell has at least one of a plurality of rod-shaped parts that are neither parallel nor perpendicular to each other and a plurality of wall surfaces that are neither parallel nor perpendicular to each other. When the maximum width in the thickness direction of the case wall of the lattice structure part is defined as a first width (WL1, WL2), looking at the lattice structure part in the directions (X1, X2) orthogonal to the region in which the lattice structure part of the case wall outer surface or inner surface is provided, the length of any line segment (SL1, SL2) within the lattice structure part orthogonal to the longest line segment (Sx1, Sx2) within the lattice structure part is greater than the first width.
Inventors:
UHARA TAKEHIRO (JP)
TAKAHASHI NAOHISA (JP)
KURITA HIROTAKA (JP)
NAGAMOTO HIROYUKI (JP)
KURIMOTO KEISUKE (JP)
KOBAYASHI TAKAYUKI (JP)
TAKAHASHI NAOHISA (JP)
KURITA HIROTAKA (JP)
NAGAMOTO HIROYUKI (JP)
KURIMOTO KEISUKE (JP)
KOBAYASHI TAKAYUKI (JP)
Application Number:
PCT/JP2022/026273
Publication Date:
January 19, 2023
Filing Date:
June 30, 2022
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
International Classes:
H02K5/20; H05K7/20
Domestic Patent References:
| WO2020195004A1 | 2020-10-01 |
Foreign References:
| JP2017207035A | 2017-11-24 |
Attorney, Agent or Firm:
ATEN IP ATTORNEYS (JP)
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