FIG. 1 illustrates an elevator system according to one embodiment of the present invention, including a compensating cable 100 operably engaged with both the centerline 115 of a bottom portion of an elevator car 110 and with a counterweight 120 that may be disposed in association with the elevator car 110 (in, for example, an elevator hoistway). The compensating cable 100 comprises a first portion 101 adapted to be operably engaged with the lower side of the elevator car 110 and a second portion 105 adapted to be operably engaged with a counterweight 120. The compensating cable also comprises an arcuate portion 103 disposed between the first and second portions 101, 105, the arcuate portion 103 defining a radius 102 configured such that the first portion 101 is configured to be capable of operably engaging the lower side of the elevator car 110 at the centerline 115 so that the elevator car 110 is substantially balanced about the centerline 115. The centerline 115 of the bottom of the elevator car 110 may be defined as the point of attachment for the first portion 101 wherein the weight force exerted by the compensation cable 100 on the elevator car 110 is most balanced, such as, for example, at the centerline 115 of the underside of an elevator car. For example, in elevator system embodiments comprising an elevator car 110 having a substantially symmetrical weight distribution about a substantially rectangular bottom portion, the centerline 115 may be approximately defined as the line that is parallel to the counterweight and substantially equidistant from the parallel sides of the bottom portion of the elevator car 110.
According to some embodiments, multiple compensating cables 100 may be operably engaged with the bottom portion (or underside) of an elevator car 110 along the centerline 115. Such compensating cables 100 may be attached at several equidistant points along the length of the centerline so as to not interfere with the elevator car's balance. In other embodiments, a single compensating cable 100 may be attached to a point on the centerline 115 of the bottom portion of the elevator car 110 at a point that is substantially equidistant from the parallel edges of the bottom portion of the elevator car that are intersected by the centerline 115.
One skilled in the art will appreciate that the counterweight 120 may be disposed in association with the elevator car 110 in an elevator hoistway such that the counterweight 110 may be positioned beside and/or behind the elevator car 110 such that the elevator car 110 and corresponding counterweight 120 may be raised and/or lowered freely during the operation of the elevator system. Thus, in embodiments of the elevator system where the counterweight 120 is positioned beside the elevator car 110 (or beside the vertical pathway thereof) the arcuate portion 103 of the compensating cable may extend from a point directly below the centerline 115 of the bottom portion of the elevator car 110 to a position to the side of the elevator car 110 (or a vertical pathway thereof) as shown generally in FIG. 1. Furthermore, in embodiments where the counterweight 120 is positioned behind the elevator car 110, the arcuate portion 103 may extend from a point directly below the centerline 115 to a position behind the elevator car 110. In addition, the structure, materials, and cross-sectional design (see, for example FIG. 2) of the compensating cable 100 may be selectively adjusted as described in further detail below, such that the loop radius 102 attainable by the arcuate portion 103 of the compensating cable 100 may be set to a selected minimum radius such that the first portion 101 of the compensating cable 100 may operably engage the centerline 115 of the bottom portion of the elevator car 110. Therefore, embodiments of the present invention, may allow the loop radius 102 of the compensating cable 100 to be designed for the particular dimensions of the elevator car 110 to which the cable 100 may be attached regardless of the relative positions, distances, and/or other geometric constraints presented by various elevator systems. For example, the compensating cable 100 may be appropriately configured such that the minimum loop radius 102 of the compensating cable 100 corresponds to half the distance between the centerline 115 and the point of attachment to the counterweight 120. As a result, some embodiments of the compensating cable 100 of the present invention may be retrofitted into existing elevator systems wherein conventional compensation cables once created balance issues due to the need to attach the cable at a point somewhat distant from the centerline 115.
FIG. 2 shows a cross-section of the compensating cable 100 according to one advantageous embodiment of the present invention wherein the structure and materials of the compensating cable 100 are selected such that the arcuate portion 103 formed by the compensating cable exhibits an expanded or larger
รูปที่ 1 แสดงให้เห็นถึงการมีระบบลิฟต์ตามหนึ่งศูนย์รวมของการประดิษฐ์ในปัจจุบัน รวมสายให้ 100 operably หมั้น กับทั้งการแสก 115 ส่วนล่างของลิฟท์รถ 110 และตุ้มน้ำหนัก 120 ที่อาจทิ้งร่วมกับลิฟท์รถ 110 (ใน เช่น มีลิฟต์ลิฟต์) สายให้ความชุ่มชื่น 100 ประกอบด้วยส่วนแรก 101 กับ operably ได้หมั้นกับด้านล่างของลิฟท์รถ 110 และส่วนสองดัดแปลง operably ได้หมั้นกับตุ้มน้ำหนัก 120 105 สายให้ความชุ่มชื่นยังประกอบไปด้วยส่วน arcuate 103 ทิ้งระหว่างหนึ่ง และสองส่วน 101, 105, arcuate ส่วนการกำหนดรัศมีการกำหนดค่าซึ่งมีการกำหนดค่าส่วนแรก 101 สามารถ operably ส่วนด้านล่างของลิฟท์รถ 110 ที่ผล 115 เพื่อให้ลิฟท์รถ 110 จะมีความสมดุลอย่างมากเกี่ยวกับผล 115 102 103 แนวเส้นกลางของด้านล่างของลิฟท์รถ 110 115 อาจถูกกำหนดเป็นจุดของสิ่งที่แนบมาสำหรับส่วนแรก 101 ประเด็นแรงน้ำหนักนั่นเอง โดยสายชดเชย 100 บนลิฟท์รถ 110 จะสุดสมดุล เช่นนี้ เช่น ที่แสก 115 ล่างของลิฟท์รถ ตัวอย่างเช่น ในลิฟท์ระบบจากประวัติศาสตร์ประกอบด้วยลิฟต์รถ 110 ที่มีการกระจายน้ำหนักที่สมมาตรมากเกี่ยวกับส่วนล่างสี่เหลี่ยมมาก ผล 115 อาจประมาณกำหนดเป็นเส้นที่ขนานกับการถ่วง และตั้งมากด้านขนานของส่วนล่างของลิฟท์รถ 110ตามบางจากประวัติศาสตร์ สายใหม่ให้ความชุ่มชื่น 100 อาจจะ operably มีส่วนร่วมกับส่วนล่าง (หรือล่าง) ลิฟท์รถ 110 ตามแนวเส้นกลาง 115 อาจจะติดสายดังกล่าวให้ความชุ่มชื่น 100 หลายเท่าจุดตามความยาวของผลเพื่อไม่ให้รบกวนสมดุลของรถลิฟท์ ในอื่น ๆ จากประวัติศาสตร์ เคเบิลให้ 100 อาจถูกแนบไปยังจุดบนแนวเส้นกลาง 115 ของส่วนล่างของลิฟท์รถ 110 ที่จุดที่เป็นขอบขนานของส่วนล่างของลิฟท์รถที่ระดับตามแนวเส้นกลาง 115 ตั้งมากOne skilled in the art will appreciate that the counterweight 120 may be disposed in association with the elevator car 110 in an elevator hoistway such that the counterweight 110 may be positioned beside and/or behind the elevator car 110 such that the elevator car 110 and corresponding counterweight 120 may be raised and/or lowered freely during the operation of the elevator system. Thus, in embodiments of the elevator system where the counterweight 120 is positioned beside the elevator car 110 (or beside the vertical pathway thereof) the arcuate portion 103 of the compensating cable may extend from a point directly below the centerline 115 of the bottom portion of the elevator car 110 to a position to the side of the elevator car 110 (or a vertical pathway thereof) as shown generally in FIG. 1. Furthermore, in embodiments where the counterweight 120 is positioned behind the elevator car 110, the arcuate portion 103 may extend from a point directly below the centerline 115 to a position behind the elevator car 110. In addition, the structure, materials, and cross-sectional design (see, for example FIG. 2) of the compensating cable 100 may be selectively adjusted as described in further detail below, such that the loop radius 102 attainable by the arcuate portion 103 of the compensating cable 100 may be set to a selected minimum radius such that the first portion 101 of the compensating cable 100 may operably engage the centerline 115 of the bottom portion of the elevator car 110. Therefore, embodiments of the present invention, may allow the loop radius 102 of the compensating cable 100 to be designed for the particular dimensions of the elevator car 110 to which the cable 100 may be attached regardless of the relative positions, distances, and/or other geometric constraints presented by various elevator systems. For example, the compensating cable 100 may be appropriately configured such that the minimum loop radius 102 of the compensating cable 100 corresponds to half the distance between the centerline 115 and the point of attachment to the counterweight 120. As a result, some embodiments of the compensating cable 100 of the present invention may be retrofitted into existing elevator systems wherein conventional compensation cables once created balance issues due to the need to attach the cable at a point somewhat distant from the centerline 115.FIG. 2 shows a cross-section of the compensating cable 100 according to one advantageous embodiment of the present invention wherein the structure and materials of the compensating cable 100 are selected such that the arcuate portion 103 formed by the compensating cable exhibits an expanded or larger
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