{"id":2983,"date":"2026-04-16T17:10:32","date_gmt":"2026-04-16T09:10:32","guid":{"rendered":"https:\/\/www.handaspring.com\/?p=2983"},"modified":"2026-10-19T08:25:26","modified_gmt":"2026-10-19T00:25:26","slug":"helical-spring-design-guide-formulas-calculations-best-practices","status":"publish","type":"post","link":"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html","title":{"rendered":"\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u8a2d\u8a08\u30ac\u30a4\u30c9\uff1a\u516c\u5f0f\u3001\u8a08\u7b97\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u91cd\u8981\u306a\u516c\u5f0f\u3001\u8a08\u7b97\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u8a2d\u8a08\u3092\u30de\u30b9\u30bf\u30fc\u3002\u3070\u306d\u5b9a\u6570\u3001\u5fdc\u529b\u3001\u305f\u308f\u307f\u306e\u8a08\u7b97\u65b9\u6cd5\u3001\u5727\u7e2e\u3001\u4f38\u9577\u3001\u306d\u3058\u308a\u3070\u306d\u306e\u6750\u6599\u306e\u9078\u3073\u65b9\u3092\u5b66\u3073\u307e\u3059\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u76ee\u6b21\u3092\u8868\u793a\uff0f\u975e\u8868\u793a\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u5207\u308a\u66ff\u3048<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Introduction\" >\u306f\u3058\u3081\u306b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#1_Basic_Geometry_of_Helical_Springs\" >1.\u3089\u305b\u3093\u3070\u306d\u306e\u57fa\u672c\u5f62\u72b6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#2_Spring_Rate_Stiffness_Formula\" >2.\u30d0\u30cd\u5b9a\u6570\uff08\u525b\u6027\uff09\u306e\u516c\u5f0f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#For_Compression_and_Tension_Springs\" >\u5727\u7e2e\u30fb\u5f15\u5f35\u30b9\u30d7\u30ea\u30f3\u30b0\u7528<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Typical_Shear_Modulus_Values\" >\u4ee3\u8868\u7684\u306a\u305b\u3093\u65ad\u5f3e\u6027\u7387\u306e\u5024<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#For_Torsion_Springs\" >\u30c8\u30fc\u30b7\u30e7\u30f3\u30fb\u30b9\u30d7\u30ea\u30f3\u30b0\u7528<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#3_Stress_Calculations\" >3.\u5fdc\u529b\u8a08\u7b97<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Torsional_Stress_CompressionTension_Springs\" >\u306d\u3058\u308a\u5fdc\u529b\uff08\u5727\u7e2e\/\u5f15\u5f35\u30b9\u30d7\u30ea\u30f3\u30b0\uff09<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Allowable_Stress_Guidelines\" >\u8a31\u5bb9\u5fdc\u529b\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#For_Torsion_Springs-2\" >\u30c8\u30fc\u30b7\u30e7\u30f3\u30fb\u30b9\u30d7\u30ea\u30f3\u30b0\u7528<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#4_Deflection_and_Solid_Height\" >4.\u305f\u308f\u307f\u3068\u30bd\u30ea\u30c3\u30c9\u30cf\u30a4\u30c8<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Compression_Spring_Deflection\" >\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u305f\u308f\u307f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Maximum_Safe_Deflection\" >\u6700\u5927\u5b89\u5168\u305f\u308f\u307f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#5_Buckling_Considerations\" >5.\u5ea7\u5c48\u306b\u95a2\u3059\u308b\u8003\u5bdf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#6_Material_Selection_Best_Practices\" >6.\u6750\u6599\u9078\u629e\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Material_Hardness_and_Tensile_Strength\" >\u6750\u6599\u306e\u786c\u5ea6\u3068\u5f15\u5f35\u5f37\u5ea6<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#7_End_Configurations\" >7.\u30a8\u30f3\u30c9\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Compression_Spring_Ends\" >\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u30a8\u30f3\u30c9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Tension_Spring_Ends\" >\u30c6\u30f3\u30b7\u30e7\u30f3\u30fb\u30b9\u30d7\u30ea\u30f3\u30b0\u30fb\u30a8\u30f3\u30c9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#8_Design_Process_Step-by-Step\" >8.\u30c7\u30b6\u30a4\u30f3\u30fb\u30d7\u30ed\u30bb\u30b9\u306e\u30b9\u30c6\u30c3\u30d7\u30fb\u30d0\u30a4\u30fb\u30b9\u30c6\u30c3\u30d7<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#9_Practical_Example_Compression_Spring_Design\" >9.\u5b9f\u4f8b\u5727\u7e2e\u30d0\u30cd\u306e\u8a2d\u8a08<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#10_Best_Practices_Summary\" >10.\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u307e\u3068\u3081<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#11_Common_Design_Mistakes\" >11.\u3088\u304f\u3042\u308b\u8a2d\u8a08\u30df\u30b9<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.handaspring.com\/ja\/helical-spring-design.html\/#Conclusion\" >\u7d50\u8ad6<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"introduction\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>\u306f\u3058\u3081\u306b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.handaspring.com\/helical-spring-energized-seals\/\" title=\"\">\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0<\/a> \u306f\u3001\u81ea\u52d5\u8eca\u306e\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u3084\u7523\u696d\u6a5f\u68b0\u304b\u3089\u533b\u7642\u6a5f\u5668\u3084\u534a\u5c0e\u4f53\u88c5\u7f6e\u306b\u81f3\u308b\u307e\u3067\u3001\u3042\u3089\u3086\u308b\u3082\u306e\u306b\u898b\u3089\u308c\u308b\u57fa\u672c\u7684\u306a\u6a5f\u68b0\u90e8\u54c1\u3067\u3059\u3002\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u8a2d\u8a08\u306b\u306f\u3001\u57fa\u790e\u3068\u306a\u308b\u7269\u7406\u5b66\u3001\u6750\u6599\u7279\u6027\u3001\u88fd\u9020\u4e0a\u306e\u5236\u7d04\u3092\u3057\u3063\u304b\u308a\u3068\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/www.handaspring.com\/wp-content\/uploads\/2024\/06\/6592ebb93320ac65da02606b0a7533b7.png\" alt=\"\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\" class=\"wp-image-902\" style=\"aspect-ratio:4\/3;object-fit:cover\" srcset=\"https:\/\/www.handaspring.com\/wp-content\/uploads\/2024\/06\/6592ebb93320ac65da02606b0a7533b7.png 750w, https:\/\/www.handaspring.com\/wp-content\/uploads\/2024\/06\/6592ebb93320ac65da02606b0a7533b7-300x300.png 300w, https:\/\/www.handaspring.com\/wp-content\/uploads\/2024\/06\/6592ebb93320ac65da02606b0a7533b7-150x150.png 150w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u306f\u3001\u5727\u7e2e\u3001\u5f15\u5f35\u3001\u306d\u3058\u308a\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306e\u4e3b\u8981\u306a\u516c\u5f0f\u3001\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u8a08\u7b97\u3001\u696d\u754c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002\u65b0\u88fd\u54c1\u3092\u958b\u767a\u3059\u308b\u6280\u8853\u8005\u3067\u3042\u308c\u3001\u3070\u306d\u306e\u4ed5\u69d8\u3092\u8a55\u4fa1\u3059\u308b\u8abf\u9054\u5c02\u9580\u5bb6\u3067\u3042\u308c\u3001\u3053\u306e\u30ac\u30a4\u30c9\u306f\u5341\u5206\u306a\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u6c7a\u5b9a\u3092\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"1-basic-geometry-of-helical-springs\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Basic_Geometry_of_Helical_Springs\"><\/span>1.\u3089\u305b\u3093\u3070\u306d\u306e\u57fa\u672c\u5f62\u72b6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6570\u5f0f\u306b\u5165\u308b\u524d\u306b\u3001\u57fa\u672c\u7684\u306a\u5e7e\u4f55\u5b66\u7684\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u3053\u3046\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u30d1\u30e9\u30e1\u30fc\u30bf<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u30b7\u30f3\u30dc\u30eb<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30ef\u30a4\u30e4\u30fc\u5f84<\/td><td>d<\/td><td>\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u5f62\u6210\u3059\u308b\u30ef\u30a4\u30e4\u30fc\u306e\u76f4\u5f84<\/td><\/tr><tr><td>\u5e73\u5747\u30b3\u30a4\u30eb\u5f84<\/td><td>D<\/td><td>\u5916\u5f84\u3068\u5185\u5f84\u306e\u5e73\u5747\uff08D = OD - d = ID + d\uff09<\/td><\/tr><tr><td>\u5916\u5f84<\/td><td>OD<\/td><td>D + d<\/td><\/tr><tr><td>\u5185\u5f84<\/td><td>\u8eab\u5206\u8a3c\u660e\u66f8<\/td><td>D - d<\/td><\/tr><tr><td>\u81ea\u7531\u9577<\/td><td>L\u2080<\/td><td>\u7121\u8ca0\u8377\u6642\u306e\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u9577\u3055<\/td><\/tr><tr><td>\u3057\u3063\u304b\u308a\u3068\u3057\u305f\u9ad8\u3055<\/td><td>Lm_209B<\/td><td>\u3059\u3079\u3066\u306e\u30b3\u30a4\u30eb\u3092\u4e00\u7dd2\u306b\u5727\u7e2e\u3057\u305f\u3068\u304d\u306e\u9577\u3055<\/td><\/tr><tr><td>\u30a2\u30af\u30c6\u30a3\u30d6\u30b3\u30a4\u30eb\u6570<\/td><td>N\u2090<\/td><td>\u30d0\u30cd\u4f5c\u7528\u306b\u95a2\u4e0e\u3059\u308b\u30b3\u30a4\u30eb\uff08\u30af\u30ed\u30fc\u30ba\u30c9\u30a8\u30f3\u30c9\u3092\u9664\u304f\uff09<\/td><\/tr><tr><td>\u30b3\u30a4\u30eb\u5408\u8a08<\/td><td>N\u209c<\/td><td>\u30a2\u30af\u30c6\u30a3\u30d6\u30b3\u30a4\u30eb\uff0b\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u30a8\u30f3\u30c9\u30b3\u30a4\u30eb<\/td><\/tr><tr><td>\u30d4\u30c3\u30c1<\/td><td>p<\/td><td>\u96a3\u63a5\u3059\u308b\u30b3\u30a4\u30eb\u9593\u306e\u8ddd\u96e2 (p = L\u2080 \/ N\u0209\u3001\u5727\u7e2e\u3070\u306d\u306e\u5834\u5408)<\/td><\/tr><tr><td>\u6625\u306e\u6307\u6a19<\/td><td>C<\/td><td>C = D \/ d\uff08\u88fd\u9020\u6027\u3092\u8003\u616e\u3057\u30014\uff5e12\u3068\u3059\u308b\u3053\u3068\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"2-spring-rate-stiffness-formula\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Spring_Rate_Stiffness_Formula\"><\/span>2.\u30d0\u30cd\u5b9a\u6570\uff08\u525b\u6027\uff09\u306e\u516c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d0\u30cd\u5b9a\u6570\uff08\u307e\u305f\u306f\u525b\u6027\uff09\u306f\u3001\u5358\u4f4d\u305f\u308f\u307f\u3092\u751f\u307f\u51fa\u3059\u306e\u306b\u5fc5\u8981\u306a\u529b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 id=\"for-compression-and-tension-springs\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"For_Compression_and_Tension_Springs\"><\/span>\u5727\u7e2e\u30fb\u5f15\u5f35\u30b9\u30d7\u30ea\u30f3\u30b0\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u672c\u7684\u306a\u516c\u5f0f\u306f\u3053\u3046\u3060\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>k = (G \u00d7 d\u2074) \/ (8 \u00d7 D\u00b3 \u00d7 N )<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3053\u3067\u3060\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>k = \u30b9\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\uff08N\/mm\u307e\u305f\u306flb\/in\uff09<\/li>\n\n\n\n<li>G = \u6750\u6599\u306e\u305b\u3093\u65ad\u5f3e\u6027\u7387\uff08MPa\u307e\u305f\u306fpsi\uff09<\/li>\n\n\n\n<li>d = \u30ef\u30a4\u30e4\u30fc\u76f4\u5f84\uff08mm\u307e\u305f\u306fin\uff09<\/li>\n\n\n\n<li>D = \u5e73\u5747\u30b3\u30a4\u30eb\u76f4\u5f84\uff08mm\u307e\u305f\u306fin\uff09<\/li>\n\n\n\n<li>N  = \u30a2\u30af\u30c6\u30a3\u30d6\u30fb\u30b3\u30a4\u30eb\u306e\u6570<\/li>\n<\/ul>\n\n\n\n<h3 id=\"typical-shear-modulus-values\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_Shear_Modulus_Values\"><\/span>\u4ee3\u8868\u7684\u306a\u305b\u3093\u65ad\u5f3e\u6027\u7387\u306e\u5024<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7d20\u6750<\/th><th class=\"has-text-align-left\" data-align=\"left\">G (MPa)<\/th><th class=\"has-text-align-left\" data-align=\"left\">G\uff08psi\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u30df\u30e5\u30fc\u30b8\u30c3\u30af\u30ef\u30a4\u30e4\u30fc<\/td><td>79,000<\/td><td>11.5 \u00d7 10\u2076<\/td><\/tr><tr><td>\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\uff08302\/304\uff09<\/td><td>69,000<\/td><td>10.0 \u00d7 10\u2076<\/td><\/tr><tr><td>17-7PH<\/td><td>75,000<\/td><td>10.9 \u00d7 10\u2076<\/td><\/tr><tr><td>\u30a4\u30f3\u30b3\u30cd\u30eb X-750<\/td><td>76,000<\/td><td>11.0 \u00d7 10\u2076<\/td><\/tr><tr><td>\u30d9\u30ea\u30ea\u30a6\u30e0\u9285<\/td><td>48,000<\/td><td>7.0 \u00d7 10\u2076<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"for-torsion-springs\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"For_Torsion_Springs\"><\/span>\u30c8\u30fc\u30b7\u30e7\u30f3\u30fb\u30b9\u30d7\u30ea\u30f3\u30b0\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u306d\u3058\u308a\u30d0\u30cd\u30ec\u30fc\u30c8\uff08\u89d2\u5ea6\u305f\u308f\u307f\u3042\u305f\u308a\u306e\u30c8\u30eb\u30af\uff09\u306f\u6b21\u306e\u901a\u308a\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>k_t = (E \u00d7 d\u2074) \/ (10.8 \u00d7 D \u00d7 N )<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3053\u3067\u3060\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>k_t = \u30c8\u30eb\u30af\u30ec\u30fc\u30c8\uff08N\u30fbmm\/\u5ea6\u307e\u305f\u306flb\u30fbin\/\u5ea6\uff09<\/li>\n\n\n\n<li>E = \u30e4\u30f3\u30b0\u7387\uff08MPa\u307e\u305f\u306fpsi\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"3-stress-calculations\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Stress_Calculations\"><\/span>3.\u5fdc\u529b\u8a08\u7b97<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6c38\u4e45\u5909\u5f62\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u306f\u3001\u30b9\u30d7\u30ea\u30f3\u30b0\u304c\u6750\u6599\u306e\u964d\u4f0f\u5f37\u5ea6\u4ee5\u4e0b\u3067\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 id=\"torsional-stress-compressiontension-springs\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Torsional_Stress_CompressionTension_Springs\"><\/span>\u306d\u3058\u308a\u5fdc\u529b\uff08\u5727\u7e2e\/\u5f15\u5f35\u30b9\u30d7\u30ea\u30f3\u30b0\uff09<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5927\u306d\u3058\u308a\u5fdc\u529b\u306f\u30b3\u30a4\u30eb\u306e\u5185\u5074\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u767a\u751f\u3059\u308b\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u03c4 = (8 \u00d7 P \u00d7 D \u00d7 K) \/ (\u03c0 \u00d7 d\u00b3)<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3053\u3067\u3060\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P = \u5370\u52a0\u8377\u91cd\uff08N\uff09<\/li>\n\n\n\n<li>K = \u30ef\u30fc\u30eb\u4fc2\u6570\uff08\u66f2\u7387\u3068\u76f4\u63a5\u305b\u3093\u65ad\u3092\u8003\u616e\u3059\u308b\uff09<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30ef\u30fc\u30eb\u56e0\u5b50\u306e\u516c\u5f0f<\/strong>:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>k = (4c - 1) \/ (4c - 4) + 0.615 \/ c<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u624b\u3063\u53d6\u308a\u65e9\u304f\u63a8\u6e2c\u3059\u308b\u3068\u3001C\u304c4\uff5e12\u306e\u3068\u304d\u3001K\u306f\u7d041.2\uff5e1.4\u306e\u7bc4\u56f2\u3068\u306a\u308b\u3002.<\/p>\n\n\n\n<h3 id=\"allowable-stress-guidelines\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Allowable_Stress_Guidelines\"><\/span>\u8a31\u5bb9\u5fdc\u529b\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7533\u3057\u8fbc\u307f<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5f15\u5f35\u5f37\u3055\u306e%<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5b89\u5168\u4fc2\u6570<\/th><\/tr><\/thead><tbody><tr><td>\u9759\u7684\uff08\u5468\u671f\u304c\u5c11\u306a\u3044\uff09<\/td><td>45-50%<\/td><td>2.0 - 2.2<\/td><\/tr><tr><td>\u30c0\u30a4\u30ca\u30df\u30c3\u30af\uff08\u30cf\u30a4\u30b5\u30a4\u30af\u30eb\u300110\u2076\u30b5\u30a4\u30af\u30eb\u4ee5\u4e0a\uff09<\/td><td>30-35%<\/td><td>2.8 - 3.3<\/td><\/tr><tr><td>\u885d\u6483\u8377\u91cd<\/td><td>25-30%<\/td><td>3.3 - 4.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"for-torsion-springs-2\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"For_Torsion_Springs-2\"><\/span>\u30c8\u30fc\u30b7\u30e7\u30f3\u30fb\u30b9\u30d7\u30ea\u30f3\u30b0\u7528<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f2\u3052\u5fdc\u529b\uff08\u306d\u3058\u308a\u5fdc\u529b\u3067\u306f\u306a\u3044\uff09\u304c\u6700\u5927\u306e\u95a2\u5fc3\u4e8b\u3067\u3042\u308b\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u03c3 = (32 \u00d7 M) \/ (\u03c0 \u00d7 d\u00b3)<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067M\u306f\u52a0\u3048\u3089\u308c\u305f\u66f2\u3052\u30e2\u30fc\u30e1\u30f3\u30c8\uff08\u30c8\u30eb\u30af\uff09\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"4-deflection-and-solid-height\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Deflection_and_Solid_Height\"><\/span>4.\u305f\u308f\u307f\u3068\u30bd\u30ea\u30c3\u30c9\u30cf\u30a4\u30c8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 id=\"compression-spring-deflection\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Compression_Spring_Deflection\"><\/span>\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u305f\u308f\u307f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8377\u91cd\u305f\u308f\u307f\u306f\u5358\u7d14\u306b<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u03b4 = P \/ k<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u5e38\u306e\u64cd\u4f5c\u3067\u306f\u3001\u30b9\u30d7\u30ea\u30f3\u30b0\u306f\u6c7a\u3057\u3066\u3057\u3063\u304b\u308a\u3068\u3057\u305f\u9ad8\u3055\u307e\u3067\u5727\u7e2e\u3055\u308c\u308b\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e00\u822c\u7684\u306a\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u306f\u81ea\u7531\u9577\u306e10-15%\u3067\u3059\u3002.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Lm_209B = d \u00d7 N\u209c<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u3001N\u21aaLm_209C = \u30b3\u30a4\u30eb\u306e\u7dcf\u6570\uff08\u30af\u30ed\u30fc\u30ba\u30c9\u30a8\u30f3\u30c9\u3092\u542b\u3080\uff09\u3002.<\/p>\n\n\n\n<h3 id=\"maximum-safe-deflection\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Maximum_Safe_Deflection\"><\/span>\u6700\u5927\u5b89\u5168\u305f\u308f\u307f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u03b4_max = (\u03c0 \u00d7 d\u00b2 \u00d7 \u03c4_max \u00d7 D \u00d7 N ) \/ (4 \u00d7 P)<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u308a\u73fe\u5b9f\u7684\u306b\u306f\u3001\u305f\u308f\u307f\u3092 (L\u2080 - Lm_209B)\u306e75-80%\u306b\u5236\u9650\u3059\u308b\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"5-buckling-considerations\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Buckling_Considerations\"><\/span>5.\u5ea7\u5c48\u306b\u95a2\u3059\u308b\u8003\u5bdf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d30\u9577\u3044\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u306f\u3001\u5b9a\u683c\u305f\u308f\u307f\u306b\u9054\u3059\u308b\u524d\u306b\u3001\u5ea7\u5c48\u3059\u308b\uff08\u6a2a\u306b\u66f2\u304c\u308b\uff09\u3053\u3068\u304c\u3042\u308b\u3002\u5ea7\u5c48\u3092\u9632\u3050\u306b\u306f<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>L\u2080 \/ D &lt; 4<\/strong>&nbsp;\u975e\u652f\u6301\u7aef\u7528<br><strong>L\u2080 \/ D &lt; 2.5<\/strong>&nbsp;\u30ac\u30a4\u30c9\u4ed8\u304d\u30a8\u30f3\u30c9\u7528<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6bd4\u7387\u3092\u8d85\u3048\u308b\u5834\u5408\u306f\u3001\u30b9\u30d7\u30ea\u30f3\u30b0\u30ac\u30a4\u30c9\u30ed\u30c3\u30c9\u3084\u5927\u5f84\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"6-material-selection-best-practices\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Material_Selection_Best_Practices\"><\/span>6.\u6750\u6599\u9078\u629e\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u74b0\u5883<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u63a8\u5968\u7d20\u6750<\/th><\/tr><\/thead><tbody><tr><td>\u4e00\u822c\u5c4b\u5185\u3001\u4f4e\u30b3\u30b9\u30c8<\/td><td>\u30df\u30e5\u30fc\u30b8\u30c3\u30af\u30ef\u30a4\u30e4\u30fc (ASTM A228)<\/td><\/tr><tr><td>\u6c34\u5206\u3001\u8efd\u5ea6\u306e\u8150\u98df<\/td><td>302\/304\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc<\/td><\/tr><tr><td>\u6d77\u6d0b\u3001\u5316\u5b66\u7269\u8cea\u3078\u306e\u66b4\u9732<\/td><td>316\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc<\/td><\/tr><tr><td>\u9ad8\u6e29 (&gt;250\u00b0C)<\/td><td>\u30a4\u30f3\u30b3\u30cd\u30ebX-750\u300117-7PH<\/td><\/tr><tr><td>\u30b5\u30ef\u30fc\u30ac\u30b9\uff08H\u2082S\uff09\u3001\u533b\u7642\u7528<\/td><td>\u30a8\u30eb\u30b8\u30ed\u30a4\u3001MP35N<\/td><\/tr><tr><td>\u975e\u78c1\u6027\u3001\u5c0e\u96fb\u6027<\/td><td>\u30d9\u30ea\u30ea\u30a6\u30e0\u9285<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"material-hardness-and-tensile-strength\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Material_Hardness_and_Tensile_Strength\"><\/span>\u6750\u6599\u306e\u786c\u5ea6\u3068\u5f15\u5f35\u5f37\u5ea6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30d7\u30ea\u30f3\u30b0\u6750\u306f\u901a\u5e38\u3001\u51b7\u9593\u5f15\u629c\u304d\u307e\u305f\u306f\u51b7\u9593\u5727\u5ef6\u306e\u72b6\u614b\u3067\u4f9b\u7d66\u3055\u308c\u308b\u3002\u5f15\u5f35\u5f37\u3055\u306f\u7dda\u5f84\u304c\u5927\u304d\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u6e1b\u5c11\u3057\u307e\u3059\u3002\u97f3\u697d\u7528\u30ef\u30a4\u30e4\u30fc\u306e\u5834\u5408\u3001\u304a\u304a\u3088\u305d\u306e\u5f15\u5f35\u5f37\u3055\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>S_ut \u2252 2000 \u00d7 d^(-0.16)<\/strong>&nbsp;(MPa\u3001d\u306fmm\uff09<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"7-end-configurations\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_End_Configurations\"><\/span>7.\u30a8\u30f3\u30c9\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 id=\"compression-spring-ends\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Compression_Spring_Ends\"><\/span>\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u30a8\u30f3\u30c9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u30a8\u30f3\u30c9\u30fb\u30bf\u30a4\u30d7<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8aac\u660e<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u30a4\u30f3\u30d1\u30af\u30c8<\/th><\/tr><\/thead><tbody><tr><td>\u30aa\u30fc\u30d7\u30f3\u30a8\u30f3\u30c9\u3001\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u306f\u306a\u3044<\/td><td>\u30b3\u30a4\u30eb\u304c\u9589\u3058\u3066\u3044\u306a\u3044\u3002<\/td><td>\u5ea7\u5c48\u306e\u30ea\u30b9\u30af\u3001\u4e0d\u5747\u7b49\u306a\u8377\u91cd<\/td><\/tr><tr><td>\u30af\u30ed\u30fc\u30ba\u30c9\u30a8\u30f3\u30c9\u3001\u30a2\u30fc\u30b9\u306a\u3057<\/td><td>\u30a8\u30f3\u30c9\u30b3\u30a4\u30eb\u3092\u5e73\u3089\u306b<\/td><td>\u5ea7\u5e2d\u306e\u6539\u5584<\/td><\/tr><tr><td>\u9589\u9396\u7aef\u3068\u63a5\u5730\u7aef<\/td><td>\u5e73\u3089\u306b\u524a\u308b<\/td><td>\u7cbe\u5bc6\u7528\u9014\u306b\u6700\u9069<\/td><\/tr><tr><td>\u30af\u30ed\u30fc\u30ba\u30c9\u3001\u30b0\u30e9\u30a6\u30f3\u30c9\u3001\u30b9\u30af\u30a8\u30a2<\/td><td>\u30a8\u30f3\u30c9\u30b3\u30a4\u30eb\u3092\u9589\u3058\u3001\u8ef8\u306b\u5782\u76f4\u306b\u63a5\u5730<\/td><td>\u6700\u5927\u9650\u306e\u5b89\u5b9a\u6027<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"tension-spring-ends\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tension_Spring_Ends\"><\/span>\u30c6\u30f3\u30b7\u30e7\u30f3\u30fb\u30b9\u30d7\u30ea\u30f3\u30b0\u30fb\u30a8\u30f3\u30c9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30de\u30b7\u30f3\u30d5\u30c3\u30af<\/strong>\u00a0- \u6700\u3082\u30b7\u30f3\u30d7\u30eb\u3067\u8cbb\u7528\u5bfe\u52b9\u679c\u304c\u9ad8\u3044<\/li>\n\n\n\n<li><strong>\u30af\u30ed\u30b9\u30aa\u30fc\u30d0\u30fc\u30fb\u30bb\u30f3\u30bf\u30fc\u30eb\u30fc\u30d7<\/strong>\u00a0- \u3088\u308a\u826f\u3044\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8<\/li>\n\n\n\n<li><strong>\u62e1\u5f35\u30d5\u30c3\u30af<\/strong>\u00a0- \u539a\u307f\u306e\u3042\u308b\u90e8\u54c1\u3078\u306e\u53d6\u308a\u4ed8\u3051<\/li>\n\n\n\n<li><strong>\u306d\u3058\u8fbc\u307f\u5f0f\u30a4\u30f3\u30b5\u30fc\u30c8<\/strong>\u00a0- \u9ad8\u5f37\u5ea6\u63a5\u7d9a\u7528<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"8-design-process-stepbystep\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_Design_Process_Step-by-Step\"><\/span>8.\u30c7\u30b6\u30a4\u30f3\u30fb\u30d7\u30ed\u30bb\u30b9\u306e\u30b9\u30c6\u30c3\u30d7\u30fb\u30d0\u30a4\u30fb\u30b9\u30c6\u30c3\u30d7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u5f93\u3063\u3066\u3001\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u8a2d\u8a08\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"9-practical-example-compression-spring-design\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Practical_Example_Compression_Spring_Design\"><\/span>9.\u5b9f\u4f8b\u5727\u7e2e\u30d0\u30cd\u306e\u8a2d\u8a08<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5fc5\u8981\u6761\u4ef6<\/strong>:15mm\u306e\u305f\u308f\u307f\u306750N\u306e\u529b\u3092\u4e0e\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30d0\u30eb\u30d6\u7528\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u8a2d\u8a08\u3057\u306a\u3055\u3044\u3002\u6700\u5927\u5916\u5f8412mm\u3002\u4f7f\u7528\u6e29\u5ea6100\u2103\u300150,000\u30b5\u30a4\u30af\u30eb\u3002\u6750\u8cea\u306f\u30b9\u30c6\u30f3\u30ec\u30b9\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d71 - \u7d20\u6750<\/strong>:302\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\uff08G = 69,000MPa\u3001100\u2103\u306b\u8010\u3048\u308b\uff09\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d72 - \u30b9\u30d7\u30ea\u30f3\u30b0\u30fb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u9078\u629e<\/strong>:C = 6\uff08\u5178\u578b\u7684\uff09\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d73 - \u30ef\u30a4\u30e4\u30fc\u5f84\u306e\u898b\u7a4d\u3082\u308a<\/strong>:\u307e\u305f\u3001C = D\/d = 6 \u2192 D = 6d\u3002\u3068\u3059\u308b\u3068\u3001OD = 6d + d = 7d = 12 mm \u2192 d = 1.71 mm\u3002d = 1.7 mm\u3092\u4f7f\u3046\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d74 - \u5e73\u5747\u76f4\u5f84<\/strong>:D = 6 \u00d7 1.7 = 10.2 mm\u3002\u5916\u5f84 = 10.2 + 1.7 = 11.9 mm (&lt;12 mm OK)\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d75 - \u5fc5\u8981\u306a\u30b9\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8<\/strong>k = P \/ \u03b4 = 50 N \/ 15 mm = 3.33 N\/mm\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d76 - \u30a2\u30af\u30c6\u30a3\u30d6\u30b3\u30a4\u30ebN\u2090\u306b\u3064\u3044\u3066\u89e3\u304f<\/strong>:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">k = (G \u00d7 d\u2074) \/ (8 \u00d7 D\u00b3 \u00d7 N ) \u2192 N  = (G \u00d7 d\u2074) \/ (8 \u00d7 D\u00b3 \u00d7 k)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d\u2074 = 1.7\u2074 = 8.35 mm\u2074<br>D\u00b3 = 10.2\u00b3 = 1061 mm\u00b3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u2090 = (69,000 \u00d7 8.35 \/ (8 \u00d7 1061 \u00d7 3.33) = (576,150) \/ (28,277) \u2252 20.4 \u2192 N\u2090 = 20\u3092\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d7 7 - \u30bd\u30ea\u30c3\u30c9\u306e\u9ad8\u3055\u3092\u8a08\u7b97\u3059\u308b<\/strong>:\u30af\u30ed\u30fc\u30ba\u30c9\u30a8\u30f3\u30c9\uff082\u3064\u306e\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u30b3\u30a4\u30eb\uff09\u3092\u60f3\u5b9a\u3002n\u209c = 20 + 2 = 22\u3002\u56fa\u4f53\u306e\u9ad8\u3055L\u209b = N\u21aaLm_209C \u00d7 d = 22 \u00d7 1.7 = 37.4 mm\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d78 - \u81ea\u7531\u9577<\/strong>:\u8377\u91cd\u6642\u306e\u305f\u308f\u307f\uff1d15mm\u3002\u30bd\u30ea\u30c3\u30c9\u9ad8\u3055\u3092\u907f\u3051\u308b\u305f\u3081\u3001 L\u2080 &gt; L\u020b + \u03b4 = 37.4 + 15 = 52.4 mm\u3002L\u2080 = 55 mm\u3092\u4f7f\u7528\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u30b9\u30c6\u30c3\u30d79 - \u30b9\u30c8\u30ec\u30b9\u30c1\u30a7\u30c3\u30af<\/strong>:\u30ef\u30fc\u30eb\u4fc2\u6570K = (4\u00d76-1)\/(4\u00d76-4) + 0.615\/6 = (23\/20) + 0.1025 = 1.15 + 0.1025 = 1.2525.<br>\u5fdc\u529b\u03c4 = (8 \u00d7 P \u00d7 D \u00d7 K) \/ (\u03c0 \u00d7 d\u00b3) = (8 \u00d7 50 \u00d7 10.2 \u00d7 1.2525) \/ (\u03c0 \u00d7 1.7\u00b3) = (5100) \/ (\u03c0 \u00d7 4.913) = 5100 \/ 15.44 \u2252 330 MPa\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">302SS\u306e100\u2103\u3001\u52d5\u7684\u8a31\u5bb9\u5fdc\u529b\uff1a\uff5e0.35\u00d7800MPa\uff1d280MPa\u3002330MPa\u306f\u3084\u3084\u9ad8\u3044\u3002\u7dda\u5f84\u30921.8mm\u306b\u3059\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6539\u8a02\u7248<\/strong>d=1.8, C=6 \u2192 D=10.8, OD=12.6\uff0812mm\u3092\u308f\u305a\u304b\u306b\u8d85\u3048\u308b\u304c\u8a31\u5bb9\u7bc4\u56f2\uff09\u3002N \u3001k\u3001\u5fdc\u529b\u3092\u518d\u8a08\u7b97\u3002\u5fdc\u529b\u306f\uff5e280MPa\u306b\u6e1b\u5c11\u3002\u8a31\u5bb9\u7bc4\u56f2\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"10-best-practices-summary\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_Best_Practices_Summary\"><\/span>10.\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u7df4\u7fd2<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u306a\u305c<\/th><\/tr><\/thead><tbody><tr><td>\u30b9\u30d7\u30ea\u30f3\u30b0\u6307\u6570\u30924\uff5e12\u306e\u9593\u306b\u4fdd\u3064<\/td><td>\u88fd\u9020\u53ef\u80fd\u3001\u5ea7\u5c48\u3084\u5fdc\u529b\u96c6\u4e2d\u3092\u907f\u3051\u308b<\/td><\/tr><tr><td>\u30af\u30ed\u30fc\u30ba\u30c9\u30a8\u30f3\u30c9\u3068\u30b0\u30e9\u30a6\u30f3\u30c9\u30a8\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3001\u7cbe\u5ea6\u3092\u9ad8\u3081\u308b<\/td><td>\u3088\u308a\u826f\u3044\u8377\u91cd\u5206\u6563\u3001\u5ea7\u5c48\u306e\u4f4e\u6e1b<\/td><\/tr><tr><td>\u5727\u7e2e\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u56fa\u4f53\u306e\u9ad8\u3055\u306e\u8fd1\u304f\u3067\u64cd\u4f5c\u3057\u306a\u3044<\/td><td>\u30b3\u30a4\u30eb\u306e\u885d\u7a81\u3068\u65e9\u671f\u6545\u969c\u3092\u9632\u6b62<\/td><\/tr><tr><td>\u305f\u308f\u307f\u306b10-15%\u306e\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u3092\u52a0\u3048\u308b\u3002<\/td><td>\u88fd\u9020\u516c\u5dee\u306b\u5bfe\u5fdc<\/td><\/tr><tr><td>\u30b3\u30a4\u30ea\u30f3\u30b0\u5f8c\u306e\u30b9\u30c8\u30ec\u30b9\u30fb\u30ea\u30ea\u30fc\u30d5\u3092\u6307\u5b9a\u3059\u308b<\/td><td>\u6b8b\u7559\u5fdc\u529b\u306e\u4f4e\u6e1b\u3001\u75b2\u52b4\u5bff\u547d\u306e\u5411\u4e0a<\/td><\/tr><tr><td>\u30cf\u30a4\u30b5\u30a4\u30af\u30eb\u7528\u30b7\u30e7\u30c3\u30c8\u30d4\u30fc\u30cb\u30f3\u30b0<\/td><td>\u75b2\u52b4\u5f37\u5ea6\u309220-30%\u5411\u4e0a<\/td><\/tr><tr><td>\u5b9f\u969b\u306e\u6761\u4ef6\u4e0b\u3067\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3092\u30c6\u30b9\u30c8\u3059\u308b<\/td><td>\u8a08\u7b97\u3068\u6750\u6599\u6319\u52d5\u306e\u691c\u8a3c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"11-common-design-mistakes\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Common_Design_Mistakes\"><\/span>11.\u3088\u304f\u3042\u308b\u8a2d\u8a08\u30df\u30b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30d7\u30ea\u30f3\u30b0\u6307\u6570\u7121\u8996<\/strong>\u00a0- C  12\u306f\u5ea7\u5c48\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002.<\/li>\n\n\n\n<li><strong>\u6750\u6599\u306e\u30aa\u30fc\u30d0\u30fc\u30b9\u30da\u30c3\u30af<\/strong>\u00a0- \u97f3\u697d\u7528\u306e\u30ef\u30a4\u30e4\u30fc\u304c\u4f7f\u3048\u308b\u3068\u3053\u308d\u306b\u9ad8\u4fa1\u306a\u5408\u91d1\u3092\u4f7f\u3046\u3002.<\/li>\n\n\n\n<li><strong>\u30bd\u30ea\u30c3\u30c9\u30cf\u30a4\u30c8\u3092\u5fd8\u308c\u308b<\/strong>\u00a0- \u30b9\u30d7\u30ea\u30f3\u30b0\u304c\u5e95\u3092\u3064\u304d\u3001\u7834\u640d\u306e\u539f\u56e0\u3068\u306a\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30c9\u30fb\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u8efd\u8996<\/strong>\u00a0- \u7aef\u304c\u9055\u3046\u3068\u4e0d\u5b89\u5b9a\u306b\u306a\u3063\u305f\u308a\u3001\u53d6\u308a\u4ed8\u3051\u306b\u5931\u6557\u3057\u305f\u308a\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u6e29\u5ea6\u52b9\u679c\u306e\u898b\u843d\u3068\u3057<\/strong>\u00a0- \u9ad8\u6e29\u306f\u305b\u3093\u65ad\u5f3e\u6027\u7387\u3068\u5f37\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30b9\u30c8\u30ec\u30b9\u3092\u8a08\u7b97\u3057\u306a\u3044<\/strong>\u00a0- \u6c38\u4e45\u30bb\u30c3\u30c8\u3084\u75b2\u52b4\u7834\u58ca\u306b\u3064\u306a\u304c\u308b\u3002.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>\u7d50\u8ad6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u8a2d\u8a08 <a href=\"https:\/\/www.handaspring.com\/helical-spring-energized-seals\/\" title=\"\">\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0<\/a> \u306f\u3001\u5f62\u72b6\u3001\u6750\u6599\u3001\u5fdc\u529b\u3001\u4f7f\u7528\u6761\u4ef6\u3092\u614e\u91cd\u306b\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u516c\u5f0f\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u610f\u56f3\u3055\u308c\u305f\u5bff\u547d\u306e\u9593\u3001\u5b89\u5b9a\u3057\u305f\u6027\u80fd\u3092\u767a\u63ee\u3059\u308b\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u8981\u306a\u30b9\u30d7\u30ea\u30f3\u30b0\u8a2d\u8a08\u306f\u5e38\u306b\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u3092\u4f5c\u6210\u3057\u3001\u30c6\u30b9\u30c8\u3059\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u7406\u8ad6\u7684\u306a\u8a08\u7b97\u306f\u51fa\u767a\u70b9\u3068\u306a\u308a\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u691c\u8a3c\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u8a2d\u8a08\u3067\u304a\u56f0\u308a\u3067\u3059\u304b\uff1f\u30ab\u30b9\u30bf\u30e0\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u8a2d\u8a08\u3001\u8a66\u4f5c\u3001\u8a66\u9a13\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u5f53\u793e\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.handaspring.com\/contact\/\" title=\"\">\u304a\u554f\u3044\u5408\u308f\u305b<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>\u91cd\u8981\u306a\u516c\u5f0f\u3001\u8a08\u7b97\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u8a2d\u8a08\u3092\u30de\u30b9\u30bf\u30fc\u3002\u3070\u306d\u5b9a\u6570\u3001\u5fdc\u529b\u3001\u305f\u308f\u307f\u3092\u8a08\u7b97\u3057\u3001\u5727\u7e2e\u3001\u4f38\u9577\u3001\u306d\u3058\u308a\u3070\u306d\u306e\u6750\u6599\u3092\u9078\u629e\u3059\u308b\u65b9\u6cd5\u3092\u5b66\u3073\u307e\u3059\u3002\u306f\u3058\u3081\u306b \u87ba\u65cb\u3070\u306d\u306f\u3001\u81ea\u52d5\u8eca\u30b5\u30b9\u30da\u30f3\u30b7\u30e7\u30f3\u3001\u7523\u696d\u6a5f\u68b0\u3001\u533b\u7642\u6a5f\u5668\u3001\u534a\u5c0e\u4f53\u88c5\u7f6e\u306b\u81f3\u308b\u307e\u3067\u3001\u3042\u3089\u3086\u308b\u3082\u306e\u306b\u898b\u3089\u308c\u308b\u57fa\u672c\u7684\u306a\u6a5f\u68b0\u90e8\u54c1\u3067\u3059\u3002\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30d8\u30ea\u30ab\u30eb\u30b9\u30d7\u30ea\u30f3\u30b0\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u57fa\u790e\u3068\u306a\u308b\u7269\u7406\u5b66\u3001\u6750\u6599\u7279\u6027\u3001\u88fd\u9020\u4e0a\u306e\u5236\u7d04\u3092\u3057\u3063\u304b\u308a\u3068\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u306f\u3001\u5727\u7e2e\u3001\u5f15\u5f35\u3001\u306d\u3058\u308a\u3070\u306d\u3092\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u516c\u5f0f\u3001\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u8a08\u7b97\u3001\u696d\u754c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002\u65b0\u88fd\u54c1\u3092\u958b\u767a\u3059\u308b\u6280\u8853\u8005\u3067\u3042\u308c\u3001\u3070\u306d\u306e\u4ed5\u69d8\u3092\u8a55\u4fa1\u3059\u308b\u8abf\u9054\u5c02\u9580\u5bb6\u3067\u3042\u308c\u3001\u672c\u30ac\u30a4\u30c9\u306f\u3001\u3042\u306a\u305f\u304c[...]\u3092\u4f5c\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[33],"tags":[],"benner":[],"class_list":["post-2983","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"Master helical spring design with essential formulas, calculations, and best practices. 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