Patent ID: 8047340

Claim:
A suspension spring adjusting apparatus of a hydraulic shock absorber comprising: a piston rod inserted to a cylinder; a spring adjusting jack provided in an outer periphery of the cylinder; a jack chamber provided in a spring adjusting case in which the spring adjusting jack is fixed to the outer periphery of the cylinder, wherein a plunger is provided in the jack chamber, a pump supplying a hydraulic pressure to the jack chamber is installed in the spring adjusting case, a motor driving the pump is provided in the spring adjusting case, and the motor is covered by a case cover attached to the spring adjusting case; and a suspension spring interposed between a spring receiver supported to the plunger of the spring adjusting jack and a spring receiver provided in a side of the piston rod, wherein a mounting mating surface sealed by a seal material of the spring adjusting case and the case cover is formed in a flat surface shape, wherein an outer peripheral edge of the case cover is provided with a skirt portion covering over an outer peripheral surface of the spring adjusting case via a gap; wherein a harness insertion hole is provided in the spring adjusting case, and a connecting socket of a harness is inserted through the harness insertion hole to interconnect with the motor, the harness sealed against the harness insertion hole via a seal means, the harness insertion hole dimensioned larger than an outer size of the connecting socket; wherein the harness insertion hole is previously provided in the spring adjusting case in such a manner that a connecting socket provided in a harness connected to the motor is inserted to the spring adjusting case of the spring adjusting jack under a state of being assembled to an outer periphery of the cylinder, and the harness is inserted to the harness insertion hole via the seal means; wherein the harness insertion hole provided in the spring adjusting case is constituted by a two-stage hole having a first hole in an inner surface side of the spring adjusting case, and a second hole in an outer surface side of the spring adjusting case, and wherein a harness guide inserting the harness in a watertight manner is pressure inserted to the first hole, and a cap sealing against a tube covering the harness in a watertight manner is pressure inserted to the second hole.