Delta Tooling Co., Ltd.

Other

Hiroki Ohshimo

Etsunori Fujita

Kazuyoshi Chizuka

Yasuhide Takata

Yumi Ogura

Yutaka Sakamoto

Shigeyuki Kojima

Shigeki Wagata

Hiroki Honda

Masaki Nishino

Kazuhiro Ueda

Taizo Nakata

Eiichi Koyama

Hidehiro Oda

Yoshiaki Nagae

A suspension unit includes a lower frame, an upper frame vertically movably mounted on the lower frame, and two link mechanisms disposed on respective sides of the upper and lower frames for connecting them to each other. Each of the two link mechanisms includes a parallel link mechanism having two arms extending generally parallel to each other and a pantograph-shaped link mechanism having a plurality of arms. The suspension unit further includes two permanent magnets each fixedly mounted on one of the upper and lower frames with like magnetic poles opposed to each other, a metallic spring engaged with one of the pantograph-shaped link mechanisms, and a shock absorber engaged with the other of the pantograph-shaped link mechanisms that has spring properties. With such construction, vibration below a predetermined amplitude is absorbed by the spring properties of the other of the pantograph-shaped link mechanisms with the shock absorber not operated.

Suspension unit having a magneto-spring

A seat or bed partly includes frames,and net-shaped skins,held by the frames,under tension, respectively. Each of the net-shaped skins,is made of an upper mesh layer,, a lower mesh layer,, and a pile layer having a large number of piles,that connect the upper and lower mesh layers,to each other. Each pile,is made of a single string.

Cushion and seat each having net-like skin

A vibration mechanism having a magnetic spring includes a lower frame, an upper frame vertically movably mounted on the lower frame via a plurality of link mechanisms, and at least two permanent magnets mounted on the lower frame and the upper frame, respectively, with the same magnetic poles opposed to each other. A plurality of springs are connected to the link mechanisms to produce a lifting force of the upper frame. The total spring constant of the permanent magnets and the springs is partially set to a negative value or substantially zero.

Vibration mechanism having a magnetic spring

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Hiroshima, Japan

Hiroki Ohshimo