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SPRING ELEMENT FOR A REDUCTION GEAR OF AN ELECTROMECHANICAL STEERING SYSTEM

An electromechanical steering system may include a reduction gearbox where a worm gear is mounted in first and second bearings rotatably about a longitudinal axis. Rolling elements are disposed between inner and outer rings of the bearings. The inner rings are rotationally fixed on a shaft driven by the worm gear. A spring element is disposed between the inner ring of the second bearing and the worm gear. The spring element has an at least partially annular main body that when installed extends coaxially with the longitudinal axis. Spring arms in a circumferential direction are spaced apart from the longitudinal axis emanating from an external circumferential side of the main body. A first spring arm has a first leg that points away from the longitudinal axis and a second leg on which a free end is disposed, with the second leg running at least partially parallel to the longitudinal axis.

Spring element for a reduction gear of an electromechanical steering system

An electromechanical steering system may include a reduction gearbox where a worm gear is mounted in first and second bearings rotatably about a longitudinal axis. Rolling elements are disposed between inner and outer rings of the bearings. The inner rings are rotationally fixed on a shaft driven by the worm gear. A spring element is disposed between the inner ring of the second bearing and the worm gear. The spring element has an at least partially annular main body that when installed extends coaxially with the longitudinal axis. Spring arms in a circumferential direction are spaced apart from the longitudinal axis emanating from an external circumferential side of the main body. A first spring arm has a first leg that points away from the longitudinal axis and a second leg on which a free end is disposed, with the second leg running at least partially parallel to the longitudinal axis.

Copper-coated steel wire and canted coil spring

A copper-coated steel wire includes: a core wire made of steel having a pearlite structure; and a coating layer covering a surface of the core wire and made of Cu or a Cu alloy. The steel contains C by greater than or equal to 0.5% by mass and less than or equal to 1.0% by mass, Si by greater than or equal to 0.1% by mass and less than or equal to 2.5% by mass, Mn by greater than or equal to 0.3% by mass and less than or equal to 0.9% by mass, and the balance consisting of Fe and inevitable impurities. In a cross section perpendicular to a longitudinal direction, a value of surface roughness Ra of the core wire is greater than or equal to 25% and less than or equal to 70% of a thickness of the coating layer.

Coated spring

An electrically conductive component, which can be used in motor vehicles, may include a surface having a layered covering. The layered covering may be a melted and cured product of coating with a powder composition. Further, the layered covering may have a layer thickness of greater than 150 μm, and the layered covering may be a single-layer covering. The layered covering may also include a pore-like layer structure. The pore-like layer structure of the layered covering may be responsible for an at-least-15% reduction in density of the layered covering relative to a density of the layered covering without the pore-like layer structure.

Steel wire for spring

A steel wire for a spring includes a steel wire that has Ca or Na adhered thereto in an amount of 0.2 g/m.sup.2 or less. The steel wire has an oxide film on a surface thereof, and the oxide film has a thickness of, for example, from 2.0 μm to 20 μm.

Upholstery Spring, Method For Producing An Upholstery Spring, Mattress, And Upholstered Furniture
20210222749 · 2021-07-22 ·

An upholstery spring comprises a steel spring wire made of a microalloyed steel and a color indicator arranged thereon at least in some regions, the microalloyed steel containing between 0.004 to 0.015 wt.-% of one or more alloy elements. The invention further relates to a method for producing an upholstery spring, a mattress or a piece of upholstered furniture having such an upholstery spring.

Resin composition for damping material
11053408 · 2021-07-06 · ·

Provided is a vibration damping composite capable of providing a vibration damping material, at low cost, that exhibits a high vibration damping property in a wide temperature range and has excellent appearance. The present invention relates to a resin composition for vibration damping materials which contains a lignin and/or a lignin derivative. The present invention also relates to a vibration damping composite containing the resin composition for vibration damping materials and an inorganic pigment. The present invention also relates to a vibration damping material obtainable from the vibration damping composite.

EXTENSION SPRING ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME
20210239174 · 2021-08-05 ·

An extension spring assembly and a method for manufacturing the same. A helical extension spring is provided. The spring has a plurality of coils disposed along a longitudinal axis between an end coil at a first end and an end coil at a second end with the coils touching each other in absence of a force acting on the extension spring that is sufficient for extending the same. The end coils are gripped and the spring is extended to an extended position. In the extended position the spring has a predetermined distance between successive coils thereof. In the extended position a coating material is disposed onto the surface of the spring such that the coating material is disposed onto a surface portion of the spring where the coils touch each other in absence of extension. The coating material is cured for a predetermined time interval while the spring is extended. The extension is removed from the spring after elapse of the predetermined time interval and the end coils are released. End mounts are then inserted into a first and a second end portion of the spring.

Elastic member and wire for elastic member

An elastic member is an elastic member formed of a wire having a cross section that is substantially circular, the cross section being orthogonal to a longitudinal direction, and the elastic member being expandable and contractible in a predetermined direction; and including: a first alloy portion that is made of an aluminum alloy having a tensile strength larger than 950 MPa and equal to or less than 1100 MPa at room temperature; and a second alloy portion configured to cover the first alloy portion, the second alloy portion having a thickness in a radial direction smaller than a radius of the first alloy portion, and being made of an aluminum alloy having a tensile strength of 100 MPa to 650 MPa at room temperature.

Flocking powder coated article

This flocking powder coated article comprises a base material (10) and a flocking coating layer (11). The flocking coating layer (11) includes: a coating film (110) constituted by a powder coating, and a portion of a flocking organic filler (13) buried in the powder coating; and a flocking layer (111) constituted by another portion of the flocking organic filler (13) projecting from the coating film (110). This flocking powder coated article does not have an adhesive layer for fixing the flocking organic filler (13).