Kitagawa Iron Works Co., Ltd

Nikkei Mc Aluminium Co., Ltd.

Mazda Motor Corporation

Makoto Otsuka

Hiroshi Horikawa

Naoaki Yamamoto

Katsumi Fukaya

Tsutomu Masuda

Yutaro Kitaki

Shuuji Fujii

An Al&#x2014;Si&#x2014;Mg aluminum alloy is provided. The Al&#x2014;Si&#x2014;Mg aluminum alloy includes: 5 mass % or larger and 10 mass % or smaller of Si; 0.2 mass % or larger and 1.0 mass% or smaller of Mg, 0.03 mass % or larger and 0.5 mass % or smaller of Sb; 0.0004 mass % or larger and 0.0026 mass % or smaller of Be; and a remainder having an alloy composition including Al and unavoidable impurities. In L*a*b* color system, a value of L* that indicates lightness of a surface thereof is 55 or larger.

Al&#x2014;Si&#x2014;Mg aluminum alloy

The disclosure provides a compact and low-cost gripper which allows an outside diameter of a piston to be increased. Provided is a gripper including a body case having, at one end, a cylinder part having a cylinder chamber which houses a piston so as to slide the piston along a central axis of the piston, and having, at the other end, a plurality of guide parts formed at regular intervals around the center axis and extending in a direction orthogonal to the center axis; a plurality of master jaws, on which top jaws can be removably mounted, guided by each of the guide parts; and a plunger having a plurality of interconnecting means which are respectively interconnected with each of the master jaws and slides along the central axis associated with a sliding operation of the piston.

Gripper

Growing community of inventors

Hiroshima, Japan

Makoto Otsuka