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公开(公告)号：JPH0523170B2
公开(公告)日：1993-03-31
申请号：JP19173486
申请日：1986-08-18
Applicant: TORAY INDUSTRIES
Inventor： NAKAE TOSHIJI , WAKAMURA YOSHIO , NISHIDA YUZURU
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公开(公告)号：JPH10306523A
公开(公告)日：1998-11-17
申请号：JP11237997
申请日：1997-04-30
Applicant: TORAY INDUSTRIES
Inventor： FUKUI KAZUYA , YAMADA KIYOSHI , NISHIDA YUZURU
Abstract: PROBLEM TO BE SOLVED: To improve the shock absorbing property of a protective fence and prevent the bottoming to a fence face even when impact force is large by cutting a cylindrical object having a specific shape and made of a polyolefin resin with a specific expansion ratio at a specific length, and installing multiple objects on the fence in the closely stuck state. SOLUTION: A polyolefin resin is foamed 10-100 times to form a cylindrical object 1 having the maximum outer diameter of 400 m/m or below and the minimum inner diameter of 20 m/m or above, it is cut at the maximum length of 10 m or below and the minimum length of 0.3 m or above in view of the machining property, execution property, and transportation property, and multiple objects 1 are installed on a fence formed with wall face concrete slabs 2 adjacently and closely to each other in the vertical or horizontal direction. The flexibility by the semihardness of this polyolefin resin foam body itself, the buffer property by an independent bubble structure, and the buffer property of the cylindrical space are comprehensively utilized to absorb a shock more safely when a human body collides with it. Even when impact force is large, no bottoming occurs to the fence face, its breakage is prevented, and the human body can be safely protected.
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公开(公告)号：JPS6347112A
公开(公告)日：1988-02-27
申请号：JP19173486
申请日：1986-08-18
Applicant: TORAY INDUSTRIES
Inventor： NAKAE TOSHIJI , WAKAMURA YOSHIO , NISHIDA YUZURU
Abstract: PURPOSE:To realize the attractive external appearance under the condition that no break of cell due to the discharge of gas develops and further prevent the mechanical strength from lowering by a method wherein the specified thickness of a foam is pressed with a press tool having a specified press plate after the foam is heated in advance up to its formable temperature. CONSTITUTION:A press tool is formed by fixing a metallic press plate, the thickness of which is 0.2-3.0mm and which is worked into a desired shape such as rectilinear, curvilinear, circular, chain-like or the like one, to a metallic plate such as woody, aluminum or the like one, so as to be used for the pressing of a foam 1 having closed cells. The thickness, which is 50% or more, preferably 65% or more of the original thickness of the foam heated in advance upto its formable temperature with a sandwich heater or the like, is pressed with said metallic press plate so as to give the foam a press pattern having unique strong contrast by the strong and deep pressed part 2. In addition, because the resultant pressed foam can be freely bent and folded at the pressed part, unique and diverse product values are given to the foam product.
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