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AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsMinoru Fukui, Naoki Kataoka
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The deformation sensitive electroconductive knitted or woven fabric of the present invention is a knitted or woven fabric, which can be changed in electroconductivity at the deformed portion when the deformation of stretch or compression is applied thereon by maintaining in the certain ratio of the number of electrically insulating portions to the number of electroconductive portions at the intertwined portions of the fibers and/or the portions between the intertwined portions of the fibers. By using this knitted or woven fabric directly or a deformation sensitive electroconductive sheet having an elastomer laminated on at least one surface of the knitted or woven fabric, it can be utilized as an stretch sensitive electroconductive device or pressure sensitive electroconductive device provided electrodes capable of detecting the changes in electroconductivity corresponding to deformations as electrical characteristics such as electrical resistance. This deformation sensitive electroconductive device is more excellent in measurement of great deformations and durability in repeated uses as compared with the pressure sensitive electroconductive device using the pressure sensitive electroconductive elastomer sheet mixed with electroconductive fillers which has been used in the prior art.
A stretch sensitive electroconductive woven fabric comprising a plural number of longitudinal yarns and lateral yarns constituting a fabric strip having a shape which is substantially rectangular, in which conductive yarns are used for one of the longitudinal or lateral yarns constituting said fabric and insulating yarns for the other, and the longitudinal yarns and lateral yarns constituting said fabric strip are slanted relative to the longer direction of the fabric strip, and wherein the woven fabric is deformable and has an electrical resistance that varies with the degree of deformation.
A deformation sensitive electroconductive woven fabric comprising yarns having intertwined portions, wherein the ratio of the number of the portions under insulating condition to the number of the portions under electroconductive condition at each of the intertwined portions of the yarns and the portions between the intertwined portions of the yarns is 1/9 or more, and wherein the woven fabric is deformable and has an electrical resistance that varies with the degree of deformation.
A deformation sensitive electroconductive knitted fabric comprising yarns having intertwined portions, wherein the ratio of the number of the portions under insulating condition to the number of the portions under electroconductive condition at the intertwined portions of the yarns is 1/90 or more, and wherein the knitted fabric is deformable and has an electrical resistance that varies with the degree of deformation.
Dependencies are inferred from the claim text.