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公开(公告)号：EP1460292A1
公开(公告)日：2004-09-22
申请号：EP03251613.0
申请日：2003-03-17
发明人： Carlstedt, Robert , Whitney, Daniel Eugene , Smith, Mark , Geib, Eric Stephen , Foster, Steven , Clisch, Richard , Shih, Shan , Marcos Munoz, Juan Jose
CPC分类号： F16F3/12 , B60G7/02 , B60G11/12 , B60G11/15 , B60G11/20 , B60G11/23 , B60G21/0551 , B60G2202/1424 , B60G2204/121 , B60G2204/1222 , B60G2204/143 , B60G2204/41 , F16F1/027 , F16F1/10 , F16F1/20 , F16F1/38
摘要： A laminated bushing is formed from a metal sheet having resilient material disposed on one side by spirally winding the metal sheet about a longitudinal axis to form a spirally shaped cavity. The resilient material is disposed within the spirally shaped cavity and the metal sheet forming the spiral shaped cavity either mechanically compresses the resilient material disposed within the cavities, or the resilient material is vulcanized once the laminated bushing is formed. The spirally wound laminated bushing includes inner and outer sleeves concentric about the longitudinal axis that are movable relative to one another in direct proportion to the material deformation properties of the resilient material.
摘要翻译： 层压衬套由具有弹性材料的金属板形成，所述金属板通过围绕纵向轴线螺旋地缠绕金属片而形成螺旋形空腔，所述金属片设置在一侧。 弹性材料设置在螺旋形空腔内，并且形成螺旋形空腔的金属板可以机械地压缩设置在空腔内的弹性材料，或者一旦形成层压套管，弹性材料就被硫化。 螺旋卷绕的层压衬套包括围绕纵向轴线同心的内部和外部套筒，其可以相对于彼此成比例地可弹性材料的材料变形特性成比例地移动。
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公开(公告)号：EP1381535A1
公开(公告)日：2004-01-21
申请号：EP02762130.9
申请日：2002-04-16
申请人： THE BOLER COMPANY.
CPC分类号： B62D61/12 , B60G9/003 , B60G11/15 , B60G11/32 , B60G2200/31 , B60G2202/12 , B60G2202/152 , B60G2204/47 , F16F1/127
摘要： An air-free, relatively lightweight lift assembly for an axle/suspension system of a highway/rail convertible semi-trailer, utilizes a transversely-oriented coil torsion spring having a relatively low spring rate. The torsion spring is captured between a stationary plate and a rotatable plate. A flexible link is pivotally attached at its upper end to the rotatable plate and at its lower end to the axle. This assembly results in a variable rate moment arm and continuously increasing leverage when the suspension air spring is overinflated to lower the system for transfer of the trailer from a highway tractor to a rail bogie, thus enabling use of a less robust air spring. The assembly conversely creates a decrease in leverage at the lifted rail transport position, to securely maintain the axle/suspension system in the rail position. For highway use, the lift assembly provides suspension damping without shock absorbers.
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公开(公告)号：EP0724696A1
公开(公告)日：1996-08-07
申请号：EP94928972.0
申请日：1994-10-12
CPC分类号： B60G11/15 , F16F1/127 , F16L3/2053
摘要： A force applying device such as a spring supporting device comprises a helical compression spring (1) located within a cylindrical housing (3), the device being designed to support a load (8) through a rod (5). In use, the load (8) will move vertically between a high position and a low position, involving compression and extension of the spring (1). One end of the spring is provided with a pair of diametrically projecting trunnions (9), which are located within a pair of diametrically opposed cam tracks (11) provided in the cylinder wall. During initial downward movement of the load, the trunnions engage with the cam track (11), tending to 'wind up' the spring, providing an upward force acting on the trunnions. During final movement, movement of the trunnions within the cam track allows the spring to 'unwind', and thus some of the work required to be performed during this axial movement of the load produces a downward force compensating the increase in spring reaction. In this manner, by selection of a cam track of appropriate shape, a substantially constant force may be produced acting against the load throughout the range of movement of the spring.
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