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US 5,211,500 AGranted
Composite rope having molded-on fixing member at end portion thereof
AssigneeTokyo Rope Mfg. Co., Ltd.
InventorsHiroshi Takaki, Hiroshi Kimura, Ryuichi Endo
Life of this patent
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Abstract
A method for forming an fixing end portion of a composite rope comprises the steps of mounting a mold on an end portion of the rope, pouring a molten metal in a cavity defined between the end portion of the rope and the mold under pressure, covering a predetermined part of the end portion of the rope with a cast metal formed from the molten metal, cold-pressing the cast metal and fixing the portion coated with the cast metal to a fixing member.
Claims17
A composite rope structure having an end portion thereof fixed to a stationary member, said composite rope structure comprising:
- a composite rope made of resin-impregnated non-metallic multifilaments;
- a cast metal member molded on said end portion of said composite rope, said cast metal member extending over a substantial length of said end portion of said composite rope, said cast metal member being molded on said end portion of said composite rope by supplying molten metal into a cavity of a mold that covers a predetermined substantial length of said end portion of said composite rope;
- means for initially pressing said cast metal member against said end portion of said composite rope by applying to said cast metal member, a pressing force that is distributed by said cast metal member over said predetermined substantial length of said end portion of said composite rope to increase an adhesion between said cast metal member and said composite rope over said predetermined substantial length of said composite rope, said pressing force distributed by said cast metal member over said predetermined substantial length of said end portion of said composite rope being insufficient to damage said composite rope;
- and
- a fixing member surrounding and clamping at least a portion of the cast metal member after the cast metal member is initially pressed against said end portion of said composite rope, said at least a portion of said cast metal member having a cross-sectional shape that is not deformable by a clamping force provided by said fixing member;
- said fixing member, fixing said at least a portion of said cast metal member to said stationary member;
- said clamping force provided by said fixing member being substantially uniformly distributed by said cast metal member in a longitudinal direction of said composite rope to said end portion of said composite rope such that a rope-damaging shearing stress is not applied to said composite rope.
4 more elements
Dependencies are inferred from the claim text.