| 摘要 |
A combination shock absorber and supplementary air spring unit comprising, a tubular direct acting shock absorber including a generally cylindrical outer body member, means adjacent one end of the body member defining a generally annular recessed area, a piston reciprocably disposed within the shock absorber attached to one end of a piston rod extending axially outwardly from one end of the body member, means defining an externally thread end portion on the end of the piston rod extending from the body member, a generally cylindrically-shaped enclosure member arranged coaxially of the shock absorber and spaced radially outwardly from the body member, one end of the enclosure member including means, defining a generally radially inwardly disposed shoulder, a tubular resilient diaphragm member having one end thereof secured to the inner periphery of the enclosure member and the opposite end thereof secured to the body member and defining with the enclosure member a variable volume gas chamber, means adjacent one end of the enclosure member closing one end of the chamber and defining a generally axially disposed opening through which said end portion of the piston rod extends, means threadably received on the end portion of the piston rod for securing the enclosure member thereto whereby reciprocable movement of the piston rod results in concomitant reciprocation of the enclosure member, the relative dimensions of the recessed area, the shoulder and the one end of the diaphragm member being such that relative axial movement between the body member and the enclosure member will result in the shoulder biasing said one end of the diaphragm into peripheral engagement with the recessed area.
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