F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
267/48
F16F 9/05 (2006.01)
Patent
CA 1327054
Abstract The present invention relates to a plunger piston system used, for example, to support and guide the pneumatic spring bellows (24) of an air suspension axle of a commercial vehicle or the like, with a plunger piston (1) that has a cylindrical plunger piston skirt (9) with a bottom foot area (5) for the connection with an air spring bearing arm and an upper plunger piston edge (6) that adjoins the plunger piston skirt (9) and which becomes, radially in an inward direction, a trough section that has, preferably, a trough base (8) that incorporates an opening (20) for the passage of a bolt (22) for a force-fit connection with a base (23) of the air spring bellows (24), which forms a trough (26) to accommodate the convex base (23) of the air spring bellows (24), there being a supporting body (11) in the inner space (27) that is surrounded by the plunger piston, the lower foot area (12) of said supporting body resting on the lower foot area (5) of the plunger piston (1). In order to create a light but nevertheless rugged construction, the present invention proposes that the plunger piston (1) and the supporting body (11) be of plastic: that the plunger piston (1) be configured so as to be pot-shaped with an essentially cylindrical casing (9); that the supporting body (11) be configured as a separate part of essentially truncated conical shape with a diameter (D) that grows smaller from the lower foot area (5) to the trough base (8) of the plunger piston (1); and that the supporting body ( 11) rest with a upper base plate (18) on the underside (28) of the trough base (8) of the plunger piston (1). Figure 2b
611730
Frohlke Manfred
Koschinat B. Hubert
Fetherstonhaugh & Co.
Otto Sauer Achsenfabrik Keilberg
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