Method for producing an inclined helical spring
AssigneeChuo Hatsujo Kabushiki Kaisha
InventorKeiji Hasegawa
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Abstract
The present invention is directed to an inclined helical spring having a plurality of coils along an inclined coil axis. Each coil constituting a part or the whole length of the helical compression spring is increased and decreased in diameter along the longitudinal axis of the spring, and forming the longitudinal axis of the spring in a free state thereof to be inclined substantially at a predetermined angle to an axis to be mounted with the spring. For example, one section of each coil having approximately a half of the circumference of each coil, which is divided by a plane including the coil axis, is increased in diameter, whereas the other one section of approximately a half of the circumference of each coil is decreased in diameter. The inclined helical spring may be mounted on a vehicle suspension.
Claims4
A method for producing an inclined substantially cylindrical helical spring having a plurality of substantially circular coils along an inclined coil axis, comprising:
- forming each substantially circular coil constituting a predetermined portion of the substantially cylindrical helical spring between one end and the other end thereof to be increased and decreased in diameter successively along the longitudinal axis of the spring with a half section of the coil increased or decreased in diameter compared with a diameter of either a preceding or subsequent half section of the coil;
- and
- forming the longitudinal axis of the spring in a free state thereof to be inclined substantially at a predetermined angle to an axis to be mounted with the spring.
A method for producing an inclined substantially cylindrical helical spring having a plurality of substantially circular coils along an inclined coil axis, comprising:
- forming each substantially circular coil constituting the substantially cylindrical helical spring of the whole length thereof between one end and the other one end of the spring to be increased and decreased in diameter successively along the longitudinal axis of the spring, with a half section of the substantially circular coil increased or decreased in diameter compared with a diameter of either a preceding or subsequent half section of the substantially circular coil;
- and
- forming the longitudinal axis of the spring in a free state thereof to be inclined substantially at a predetermined angle to an axis to be mounted with the spring.
Dependencies are inferred from the claim text.