초록 ▼

A spring for compression and tension mainly in an axial direction and made of a material having a Young\s modulus of elasticity of at least 39 GPa, such as metal, steel, glass, plastic or reinforced plastic is disclosed. The spring is in the form of a tube or ring of generally constant thickness. In

A spring for compression and tension mainly in an axial direction and made of a material having a Young\s modulus of elasticity of at least 39 GPa, such as metal, steel, glass, plastic or reinforced plastic is disclosed. The spring is in the form of a tube or ring of generally constant thickness. In cross-section, each ring is made up of oppositely directed inner and outer U-shaped spring parts with contiguous axial projections. A spring is provided which has minimal elastic hysteresis.

대표청구항 ▼

A spring for compression and tension comprising: a substantially cylindrical hollow body having a central longitudinal axis, opposite ends and a wall between said ends of substantially constant thickness and comprising at least two radially directed substantially U-shaped sections integrated to form

A spring for compression and tension comprising: a substantially cylindrical hollow body having a central longitudinal axis, opposite ends and a wall between said ends of substantially constant thickness and comprising at least two radially directed substantially U-shaped sections integrated to form spring parts and being symmetrical about said axis and functioning substantially in the axial direction, said U-shaped sections forming in cross-section radially outer and inner wave crests at respective inner and outer diameters, and said body being made of a material selected from the group consisting of metal, steel, glass, plastic, and reinforced plastic, and having a Young\s modulus E of at least 39 GPa; and an end section at each end comprising an annular rigid axial projection extending between said inner and outer wave-crest diameters so that a neutral surface of the spring passes through said end sections.