| 摘要 |
The spring foot (2) comprises a damping mechanism consisting of a damping cylinder (7) and piston (5), a tubular fastener part fixed to the free end of the damping cylinder, a first spring base (10a) movable in an axial direction relative to the fastener part, a compression spring (9) with its top end pressing against the first spring base, and a hydraulic mechanism for altering the axial position of the first spring base relative to the fastener part, in order to alter the tension and/or damping properties of the spring. The fastener part contains at least one adjustment chamber for receiving an axially movable piston cooperating with the first spring base. A control cylinder (15) in a manually operated adjustment device (11) contains a control chamber (16) which is used to receive a control piston (17) and which is in hydraulic communication with the adjustment chamber. The control cylinder has a rotatable adjustment knob (13) at one end, which is coupled to the control piston in such a way that rotation of the knob causes an axial displacement of the control piston. The opposite end of the control cylinder is secured to the spring foot. The position of the knob relative to the spring foot can be switched between a folded-away position and a working position. Independent claims are also included for (a) a manually operated adjustment device for use in this spring foot, comprising an essentially cylindrical intermediate piece (23) with one end secured to the spring foot and the other end extending into a transversal bore in a control cylinder, where the cylinder has a control chamber for receiving a control piston connected to an adjustment knob rotatably mounted on one end of the cylinder, (b) a second spring foot with the above damping mechanism, tubular fastener part, first spring base, compression spring and hydraulic mechanism, where the fastener part contains at least one adjustment chamber for receiving an axially movable piston cooperating with the first spring base, and where a construction part is fixed in relation to the control chamber, this construction part comprising e.g. the fastener part, the base of an end piece (30) for an outer ring (33) forming part of the outer wall of the control chamber , or a fastener piece (25) secured to or forming an integral part of the fastener part or outer ring base, and where a bore in hydraulic communication with the control chamber is used to receive one end of an essentially cylindrical intermediate piece in a manually operated adjustment device, (c) a third support foot with the above damping mechanism, fastener part, first spring base, compression spring and hydraulic mechanism, where the fastener part contains at least one control chamber for receiving an axially movable piston cooperating with the first spring base, and (d) a motorcycle with at least one of these spring feet.
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