TH82042A - Coil spring - Google Patents

Abstract

DC60 Helical spring reduces the Hertzian stress on the first coil and the bending stress at the end of the coil. The coil spring is made from a piece of wire. The assembly wire is wound into a coil shape and has The ends are curled on the movable side. The end of the coil is continuous with the first coil of the coil spring and the diameter is shifted. Concentric on the outside or inside of the coil spring relative to the first coil. To form a vertical gap Between the end of the coil and the first coil in a free state without load on the coil spring Because of this gap A coil spring with one coil end and one coil can be fully processed by shot peening. The first coil is subjected to torsional stress and kHz stress. (Contact stress) due to the curl end to suffer kHz stress The height has been shifted in diameter in either the inner or sides direction. Outside of the coil spring relative to the first coil. The contact point on the first coil is shifted in the outer or inner direction to reduce torsional stress on the first coil. The sliding part and the formed gap between the end of the coil and the first coil has the effect of preventing excessive bending stress and breaking of the end of the coil when the end of the coil and the first coil are soldered together. And knocked out in Gaps repeatedly The Hertzian stress on the first coil and the bending stress at the end of the coil The coil spring is made of a composite wire. The assembly wire is wound into a coil shape and has The ends are curled on the movable side. The end of the coil is continuous with the first coil of the coil spring and the diameter is shifted. Concentric on the outside or inside of the coil spring relative to the first coil. To form a vertical gap Between the end of the coil and the first coil in a free state without load on the coil spring Because of this gap A coil spring with one coil end and one coil can be fully processed by shot peening. (Contact stress) due to the curl end to take the stress of Hertch The height has been shifted in diameter in either the inner or sides direction Outside of the coil spring relative to the first coil. The point of contact on one of the coils is shifted in diameter in the direction of Outside or inside to reduce torsional stress per first coil Formed sliders and spaces Between the end of the coil and the first coil, resulting in excessive bending stress and lack of The end of the coil, when the end of the coil and the first coil has been soldered and loosened into space

Claims (6)

Claims (all) which do not appear on the advertisement page: 1. A coil spring which is made of a piece of wire that is arranged between Movable and stationary parts, where: the end of the spiral which is the moving part is shifted in the direction of the inner diameter. Or outside of A coil spring as opposed to the first coil of a composite wire. And gaps are formed between points on the circumference of the curl end. And the first coil of an assembly wire crossed over a straight line passing through the center of the end of the coil and the first coil along a straight line when the coil spring is in a free state, no load, and the contact point where the end of the coil is repeatedly contact Any With the curl where one of the spaces has been shifted in the dissection direction. External center 2. The coil spring of Clause 1 in which the gap in the axial direction of the coil spring is 0.1 mm or more. The drop of the first end relative to the first coil is 1/2 of the wire diameter. Assembled or less 4. The coil spring of Clause 2, in which the sliding size of the first end relative to the first coil is 1/2 of the wire diameter. 5. The coil spring of Clause 1, where the thickness of the apex of the first tip is 1/7 to 1/2 of the wire diameter. Clause 2 where the thickness of the apex of the first tip ranges from 1/7 to 1/2 of the diameter of the composite wire 7. The coil spring of Clause 3, where the thickness of the apex of the first tip is in Range 1/7 to 1/2 of the wire diameter of the composite wire 8. The coil spring of Clause 4, where the thickness of the apex of the first tip is 1/7 to 1/2 of the wire diameter. The coil spring of claim 1, in which the movable part is the holder of the valve gear of the internal combustion engine, and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1 0. Of claim 2, where the movable part is the spring retainer of the valve gear of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1 1. The helical spring of claim 3, whose movable part is the holder of the valve gear of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1. 2. The coil spring of claim 4, whose movable part is the holder of the valve gear of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1. 3. The coil spring of claim 5, whose movable part is the holder of the valve gear of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1. 4. The coil spring of claim 6, in which the movable part holds the valve spring of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1. 5. The coil spring of claim 7, whose movable part is the holder of the valve gear of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine 1. 6. The coil spring of claim 8, in which the movable part is the holder of the valve gear of the internal combustion engine and the stationary part is the mounting support of the cylinder head of the internal combustion engine.