Patent ID: 8162342
Filing Date: 2012-04-24
Classification: B60G,B62K

Abstract:
1. A shock-absorbing suspension device adapted to couple a frame of a wheeled vehicle to a wheel axle, comprising: a mounting rod which has a mounting segment that is adapted to be mounted on the frame, and a coupling segment that extends from said mounting segment in an upright direction, and that has upper and lower coupled ends disposed respectively proximate to and distal from said mounting segment; a wheel rod having a lower segment which is adapted to be mounted on the wheel axle to transmit upwards from the wheel axle a shock force generated as a result of movement of the wheeled vehicle over an uneven road surface, and an upper segment which extends from said lower segment in the upright direction and which is jerked upwards and downwards when the shock force is transmitted upwards thereto, and which has upper and lower regions, said upper segment being disposed forwardly of said mounting rod in a longitudinal direction transverse to the upright direction; a counteracting member including upper and lower linking bars, said upper linking bar being disposed to couple said upper linked end to said upper coupled end, said lower linking bar being disposed to couple said lower linked end to said lower coupled end to thereby form a four-bar linkage mechanism such that upward or downward jerking movement of said upper segment results in downward or upward movement of said coupler area of said counteracting segment about the first pivot axis, thereby dampening the shock force transmitted to said counteracting segment and in turn to said mounting rod; a first arm having a first front end connected to said lower region, and a bearing portion extending rearwardly from said first front end to terminate at a first anchoring end; and a second arm having a second front end connected to said coupling segment, and a linked portion which extends from said second front end rearwardly to terminate at a second anchoring end, and which is pivotably connected to said bearing portion about a second pivot axis to thereby form a motion stabilizing mechanism such that upward or downward jerking movement of said upper segment results in movement of said bearing portion with said upper segment and turning of said bearing portion about the second pivot axis relative to said linked portion so as to stabilize movement of said mounting rod.