Isel Co., Ltd.

Kenji Mochizuki

Masanori Mochizuki

Retainer for linear motion guide unit

In a fastening tool in which fastening members may be inclined as they are threadedly inserted together whereby almost no displacement load is applied to the members, a member having a bolt through hole with a tapered seat surface, and a fastening bolt that includes a bolt body provided about its outer periphery with a male thread, and a head provided on an end of the bolt body that has a diameter greater than that of the bolt body, in which the head has a lower outwardly curved tapered surface whose diameter is reduced toward the bolt body so that the lower surface abuts against the tapered seat surface when the fastening tool is used.

Fastening tool and fastening bolt

A shutter panel ( ) in which respective longer sides of slats ( ) made of synthetic resin are connected through hinge mechanisms to be freely bendable manner, wherein the hinge mechanisms include one hinge member and another hinge member. Each hinge member has a connecting groove that is opened outwardly. By fitting and coupling the longer sides of the slats into the connecting grooves respectively, smooth opening and closing of the shutter panel ( ) can be performed because of decreasing warpage or irregularities in thickness of slats ( ) or the hinge members and enabling smooth bending of respective slats ( ) connected by the hinge mechanisms.

Shutter panel

A shutter includes a shutter panel having a plurality of plates which are rotatably connected to one another by hinge members and a pair of guide rails formed with guide grooves which slidably hold opposite end edges of the shutter panel By using the hinge members which connect the adjacent plates to each other so that the plates are rotatably bent only in a direction in which a curvature becomes greater than a portion of the guide groove having a minimum curvature, it is possible to smoothly open and close the shutter even when the curvature of the guide rail is varied along the sliding direction of the shutter panel

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Yao, Japan

Kenji Mochizuki