| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 267286000 | Coil | 17 |
| 20080258367 | PEENING METHOD FOR VEHICLE SUSPENSION SPRING - A method of manufacturing a vehicle suspension component, such as a helical coil spring, includes the step of rotating a first impeller to project ceramic peening media in a first direction toward the vehicle suspension component to peen a surface section of the vehicle suspension component. In one example, the vehicle suspension component is peened with metal peening media before peening with the ceramic peening media. | 10-23-2008 |
| 20090033011 | Cushion - A cushion includes a cylinder, a base, an elastic element, a first bushing and a second bushing. The cylinder is made of a composite material and formed with a lug. The base is made of a composite material and formed with a lug at an end and a threaded bolt at another end. The threaded bolt is inserted into the cylinder. The elastic element is compressed between the cylinder and the base. The first bushing is disposed in the lug of the cylinder. The first bushing is made of another material than the composite material of the cylinder. The second bushing is disposed in the lug of the base. The second bushing is made of another material than the composite material of the base. | 02-05-2009 |
| 20100065997 | SHOCK-ABSORBING SPRING FOR VEHICLES - A shock-absorbing spring for vehicles has a deformed egg-shaped cross section different from a conventional round cross section. In comparison to the conventional spring under a same length, the invention has a lighter weight and a longer spring travel. Moreover, stress can be uniformly distributed toward two sides of the cross section of the invention so that the invention can bear more stress and lengthen its service life. | 03-18-2010 |
| 20100289199 | PROTECTIVE TUBE FOR COIL SPRING OF VEHICLE SUSPENSION DEVICE - Disclosed is a protective tube for a coil spring of a vehicle suspension device. The protective tube includes a cut-out portion through which the coil spring is fitted therein. The cut-out portion has a pair of upper and lower outwardly protruding wings. The wings are joined to each other by high-frequency welding. The protective tube prevents foreign materials from entering the cut-out portion. In addition, the protective tube is easy to manufacture by molding. | 11-18-2010 |
| 20100320662 | COIL SPRING FOR VEHICLE SUSPENSION AND METHOD FOR MANUFACTURING THE SAME - A spring wire with hardness of 50 to 56 HRC is subjected to first and second shot peening processes within a warm working temperature range of 150 to 350° C. In the first shot peening process, the first shot of a shot size of 1.0 mm or more is used. In the second shot peening process, the second shot smaller in shot size than the first shot is used. Through these shot peening processes, compressive residual stress is imparted to the spring wire. The spring wire includes a residual stress increase part, residual stress peak part, and residual stress decrease part. In the residual stress decrease part, a part including the compressive residual stress magnitude of which is equivalent to the magnitude of the compressive residual stress at the surface of the spring wire exists at a position at a depth exceeding the permissible pit depth. | 12-23-2010 |
| 20110074079 | COIL SPRING FOR AUTOMOBILE SUSPENSION AND METHOD OF MANUFACTURING THE SAME - A manufacturing method of a coil spring for an automobile suspension includes forming a material into a coil shape; performing a heat treatment step on the material; performing a warm shot peening step on the material, and performing a hot setting step on the material. By performing the warm shot peening step prior to the hot setting step, a stronger compressive residual stress is imparted in a direction along which a large tensile stress acts during actual use of the coil spring, thereby improving sag resistance and durability of the coil spring. A coil spring is also manufactured according to this method. | 03-31-2011 |
| 20110079945 | Spring Suspension for a Handlebar-Steered Vehicle - A coil spring suspension designed for a handlebar-steered vehicle. The coil spring suspension generally includes a first tube, a coil spring, a shaft and a guide. A first end of the coil spring is disposed within the first tube and fixedly supported proximate a first end of the first tube. The coil spring extends beyond a second end of the first tube. The shaft fixedly supports a second end of the coil spring. The shaft and the first tube are slidably displaced relative to each other upon suspension loading to lengthwise compress the coil spring. The guide is disposed within the first tube and connected to the coil spring between the first and second ends of the coil spring. The guide is displaced with the coil spring under suspension loading and limiting lateral displacement of the coil spring. | 04-07-2011 |
| 20130106038 | Spring Seat to Provide Adjustable Spring Height for Vehicle Suspension System | 05-02-2013 |
| 20150343871 | SUSPENSION SPRING APPARATUS AND SUSPENSION COIL SPRING - A compressive residual stress portion having a compressive residual stress from a surface of a wire to a first depth is formed between end turn portions of a coil spring. The first portion of the end turn portion is always in contact with a spring seat. The second portion contacts the spring seat when the load applied to the coil spring is large, and is separated from the spring seat when the load is small. The third portion is always separated from the spring seat. In the end turn portion, in a region including the second portion, a deep residual stress portion is formed by ultrasonic shot peening. The deep residual stress portion has a compressive residual stress from a surface of the wire to a second depth deeper than the first depth. | 12-03-2015 |
| 20160001623 | METHODS AND APPARATUS FOR SELECTIVE SPRING PRE-LOAD ADJUSTMENT - A method and apparatus for a suspension comprising a spring having a threaded member at a first end for providing axial movement to the spring as the spring is rotated and the threaded member moves relative to a second component. In one embodiment, the system includes a damper for metering fluid through a piston and a rotatable spring member coaxially disposed around the damper and rotatable relative to the damper. | 01-07-2016 |
| 20160046164 | SUSPENSION COIL SPRING - A suspension coil spring includes a lower end turn portion, an upper end turn portion, and a helical effective portion formed between the end turn portions. The lower end turn portion includes a first portion which contacts a lower spring seat irrespective of a load, and a second portion which contacts the lower spring seat or is separated from the same according to the load. The wire diameter of the second portion is greater than that of the first portion and an average wire diameter of the effective portion. The upper end turn portion includes a third portion which contacts an upper spring seat, and a fourth portion. The wire diameter of the fourth portion is greater that of the third portion and the average wire diameter of the effective portion. | 02-18-2016 |
| 20160046165 | SUSPENSION COIL SPRING AND STRUT TYPE SUSPENSION - A suspension coil spring that is to be installed between an upper side pedestal and a lower side pedestal of a strut type suspension for a vehicle includes a coil spring main body such that, in an installation state, an upper coil end is disposed on the upper side pedestal and a lower coil end is disposed on the lower side pedestal, the upper side pedestal and the upper coil end contact at two upper contact points, and the lower side pedestal and the lower coil end contact at one lower contact point. The two upper contact points are separated in a front-to-rear direction of the vehicle. The one lower contact point is disposed at a position that is in a direction toward outside the vehicle from a plane that passes through the two upper contact points and that is parallel to a coil central axis. | 02-18-2016 |
| 20160167730 | TELESCOPIC SUSPENSION DEVICE FITTED WITH A PRETENSION TRACKING SYSTEM | 06-16-2016 |
| 20160178024 | PROTECTION TUBE FOR COIL SPRING OF CAR SUSPENSION, METHOD FOR MANUFACTURING COIL SPRING OF CAR SUSPENSION, AND COIL SPRING OF CAR SUSPENSION MANUFACTURED USING THE SAME | 06-23-2016 |
| 267289000 | Plural coils | 3 |
| 20120133090 | Supplementary vehicle spring assembly - A supplementary vehicle spring assembly for a leaf spring of a vehicle is provided, the leaf spring defining a fixed end and a free end. The supplementary vehicle spring assembly comprises a first tension spring arrangement fitted to the fixed end of the leaf spring, a second tension spring arrangement fitted to the free end of the leaf spring, and a bracket arrangement proximate an axle of the vehicle, the bracket arrangement connecting the first and second tension spring arrangements. The first and second tension spring arrangements each comprise a connector arm for securing the arrangements to the respective ends of the leaf spring, a first connector rod extending from the connector arm and being secured to a first end of at least one tension spring, and a second connector rod extending from a second end of the tension spring, the second connector rods securing the first and second tension spring arrangements to opposite ends of the bracket arrangement. | 05-31-2012 |
| 267290000 | Nested | 1 |
| 20130127101 | THREE-STAGE CONCENTRIC COIL SPRING SYSTEM - A spring system that includes at least an inner spring and an outer spring disposed around the inner spring. The inner spring exhibits a stiffness k | 05-23-2013 |
| 267291000 | Having guide rods extending through coils | 1 |
| 20140353893 | METHODS AND APPARATUS FOR ADJUSTING A SPRING PRE-LOAD - A wrench and nut combination, including: a wrench lug including: a wrench lug feature that substantially mates with a nut feature of a nut of a shock absorber during a first rotation of said nut, relative to external body threads on a body of the shock absorber, in a first direction, wherein the wrench lug feature and the nut feature release during a second rotation of said nut, relative to the external body threads, in a second direction, wherein at least one of the first rotation and the second rotation causes an adjustment to a compressive coil spring pre-load of a set of coil springs disposed in the shock absorber. | 12-04-2014 |
