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A suspension includes a load beam and a flexure. The flexure has a metal base and a conductive circuit portion. The conductive circuit portion has an insulating layer formed on the metal base, and a conductor formed on the insulating layer. The conductive circuit portion includes a first region which constitutes a part of the conductive circuit portion in the longitudinal direction, and a second region which constitutes another part of the same in the longitudinal direction. The conductor includes a thin conductor portion having a first thickness arranged in the first region, and a thick conductor portion having a second thickness arranged in the second region. The second thickness is greater than the first thickness.


Patent
Nhk Spring Co. | Date: 2017-03-01

A hollow stabilizer (1) according to the invention is formed in a hollow shape and includes a bent portion (1c1, 1c2, ml-m5). With a thickness of an inner side of the bent portion (1c1, 1c2, m1-m5) being larger than a thickness of an outer side of the bent portion (1c1, 1c2, m1-m5), a hardness of the outer side of the bent portion (1c1, 1c2, m1-m5) is higher than a hardness of the inner side of the bent portion (1c1, 1c2, m1-m5) through quenching by cooling down after heating by electrical heating.


Patent
NHK Spring Co. | Date: 2017-01-11

For a laminate according to the present invention, a metallic coating is formed by accelerating copper powder containing 0.002% to 0.020% by weight of phosphorus and having been subjected to reduction treatment together with gas heated to a temperature lower than the melting point of the copper powder, spraying the copper powder onto the surface of a substrate while keeping the copper powder in the solid state, and depositing the copper powder on the substrate.


Patent
NHK Spring Co. | Date: 2017-03-01

A stabilizer bar with rubber bush includes a stabilizer bar (2), and at least one rubber bush (6) adhesively fixed to at least a portion of the stabilizer bar. The stabilizer bar (2) and the rubber bush (6) are adhesively fixed to each other with an adhesive agent layer (3). The adhesive agent layer (3) includes a primer agent layer (4) formed on a surface of the stabilizer bar (2) and having a dry film thickness of 5 m or more and 10 m or less; and a first top coat agent layer (5) formed on the primer agent layer (4) and having a dry film thickness of 5 m or more and less than 13 m.


Patent
NHK Spring Co. and Topura Co. | Date: 2017-01-25

A fastening member includes a first alloy portion and a second alloy portion. The first alloy portion is made of an aluminum alloy including 0.005 wt% to 5.0 wt% zinc and 0.6 wt% to 2.0 wt% magnesium and is provided to a part that comes into contact with at least one of a plurality of members serving as a fastening target. The second alloy portion is made of an aluminum alloy including more than 2.0 wt% and 5.0 wt% or less magnesium and more than 5.0 wt% and 10 wt% or less zinc and is joined to the first alloy portion.


Patent
NHK Spring Co. | Date: 2017-04-05

A compressive residual stress portion (50) having a compressive residual stress from a surface of a wire (40) to a first depth (D1) is formed between end turn portions (12a, 12b) of a coil spring (12). The end turn portion (12a) includes a first portion (12a_(1)), a second portion (12a_(2)), and a third portion (12a_(3)). The first portion (12a_(1)) is always in contact with a spring seat irrespective of a load applied to the coil spring (12). The second portion (12a_(2)) contacts the spring seat when the load applied to the coil spring (12) is large, and is separated from the spring seat when the load is small. The third portion (12a_(3)) is always separated from the spring seat irrespective of the magnitude of the load. In the end turn portion (12a), in a region including the second portion (12a_(2)), a deep residual stress portion (51) is formed by ultrasonic shot peening. The deep residual stress portion (51) has a compressive residual stress from a surface of the wire (40) to a second depth (D2) deeper than the first depth (D1).


A steel has a predetermined chemical composition with a balance being Fe and incidental impurities, wherein a sum of Cu content and Ni content is 0.15 mass % or more, and a crystal grain size after forming into a stabilizer shape and quenching is in a range of 7.5 to 10.5 in prior austenite crystal grain size number. Thus, a highly durable stabilizer steel that has a tensile strength of 1200 MPa or more and excellent normal-temperature and low-temperature toughness and is used in an environmentally friendly manufacturing process at lower cost can be realized.


Patent
NHK Spring Co. | Date: 2017-04-26

Provided is a coiled spring assembly, capable of properly engaging a seat for a coiled spring as a seat member with a coiled spring to prevent forced interference between an end turn of the coiled spring and the seat for the coiled spring and increase durability. The coiled spring (3) has an end turn (9) (11) formed up to a first turn with a reduced diameter and a transition portion (13) (15) with a diameter gradually increasing from the end turn (9) (11) to a body portion (7), the seat (5) for the coiled spring has a seat portion (17), a mounting shaft portion (19), and an enlarged diameter portion (21), the mounting shaft portion (19) has an axial length defining a gap or a zero-gap between the enlarged diameter portion (21) of the seat (5) for the coiled spring and the end turn in a free state in which the end turn (9) (11) is fitted to the mounting shaft portion and the bearing surface (9a) (11a) of the end turn (9) (11) is in contact with the receiving surface (17a) of the seat portion (17), and the transition portion (13) (15) circumvents the enlarged diameter portion (21) while the bearing surface (9a) (11a) of the end turn (9) (11) is in contact with the receiving surface (17a) of the seat portion (17).


Patent
NHK Spring Co. | Date: 2015-05-29

A method of manufacturing a laminate in which a spray coating film made of a material different from a base material is laminated on the base material includes: a base material heating step of heating the base material; an intermediate layer forming step of forming, on a surface of the heated base material, an intermediate layer made of a material different from the base material and the spray coating film; and a spray coating film forming step of forming the spray coating film on a surface of the intermediate layer.


The present invention provides a stabilizer manufacturing apparatus (S) that is adapted to bond a rubber bush (3), which is a bush made of rubber disposed between a stabilizer (1) and a vehicle body, to a rubber bush bonding location (1s) where an adhesive layer of the stabilizer (1) is formed. The stabilizer manufacturing apparatus is provided with: a curing furnace (R) for heating the stabilizer (1), which is conveyed by a manufacturing line conveying unit (4) and has the rubber bush bonding location (1s) with which the rubber bush (3) is press-contacted, and performing the bonding; a heat source device (5) that heats air; a blower device (f1, f2, f3) that sends the air heated by the heat source device (5) as hot air; and a plurality of nozzles (7) that are disposed along the manufacturing line conveying unit (4) in the curing furnace (R) and blow the hot air against, at a near position from, a location (1a1) in the vicinity of the rubber bush bonding location (1s) of the stabilizer (1).

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Loading NHK Spring Co. collaborators