Constant Tension Spring
Constant Tension Spring Monday Nov 23, 2020 By Nexim Alloys We live in an era where we need prefect counterbalance for heavy moving parts. These moving parts requires a constant tension spring. One example is the door on a moving van. When you pull down an open door, it takes additional force to get the door going the first few inches–that’s because the spring’s full load (1.25 times its diameter) must be overcome. After that, the door slides down easily, with nearly constant force. You’ll find plenty of constant force springs in everyday products as well: retractable key holders, retractable dog leashes, vacuum cleaner cord reels, seatbelts, window balance systems, interior blinds and point-of-purchase displays, to name a few. At their most basic level, however, constant force springs do exactly what other springs do. That is, they conform to Hooke’s Law . Hooke’s Law essentially states that when an elastic object is deformed, the fo...