Translation guide
A helical spring is a mechanical device made of wire wound into a helix that stores energy and resists force. In Japanese, the most common term is コイルばね, but other terms exist for specific contexts.
The most common way to refer to a helical spring in everyday and technical contexts.
The standard term for a helical spring, widely understood. コイル comes from 'coil', and ばね means 'spring'.
This machine uses a helical spring.
A native Japanese term meaning 'spiral spring'. Less common than コイルばね but still used in technical contexts.
We changed the design of the helical spring.
A more formal or technical term using the kanji 螺旋 (rasen, meaning 'spiral'). Rare in everyday speech.
Analyze the characteristics of the helical spring.
When you need to specify the type of helical spring, such as compression or tension springs.
Compression coil spring. Used when the spring is designed to resist compressive forces.
Compression coil springs are used in the suspension.
Tension coil spring. Used when the spring is designed to resist stretching forces.
Tension coil springs are used in door closers.
Torsion coil spring. Used when the spring works by twisting.
Torsion coil springs are used in clothespins.
Both ばね and スプリング mean 'spring', but ばね is the native Japanese word and is more common in compound terms like コイルばね. スプリング is a loanword often used in sports or fashion contexts (e.g., スプリングコート). For mechanical springs, stick with ばね.