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US 7,434,518 B2Granted
Two-piece model railroad truck frame
AssigneeKadee Quality Products Co.
InventorMichael Nathan Dunham
Life of this patent
Estimating the term…
Abstract
A truck for use on a piece of model railroad rolling stock, the truck having axle/wheels sets associated therewith includes two identical truck portions, which, when joined, form a model railroad truck frame, which is held together by mechanical impedance by a frame retainer located in a central mounting structure formed by joining the two truck portions.
Claims10
A truck for use on a piece of model railroad rolling stock, the truck having axle/wheels sets associated therewith, comprising:
- two identical truck portions, which, when joined, form a model railroad truck frame, each truck portion comprising:
- a half bolster, including a half central mounting structure, a slot located adjacent said half central mounting structure inboard thereof and a tongue located adjacent said half central mounting structure outboard thereof;
- and
- a side frame;
- wherein, when said tongue on one truck portion is placed in the slot of another truck portion, said truck frame is formed;
- and
- a frame retainer which is received in a full central mounting structure, formed by the half central mounting structures of two truck portions with the truck portions joined;
- wherein, with the frame retainer received in said full central mounting structure, the frame portions are (1) prevented from laterally separating from one another, and (2) have a limited rotational movement relative one another along axes extending through each slot-tongue combination.
5 more elements
A truck for use on a piece of model railroad rolling stock, the truck having axle/wheels sets associated therewith, comprising:
- two identical truck portions, which, when joined, form a model railroad truck frame, each truck portion comprising:
- a half bolster, including a half central mounting structure, a slot located adjacent said half central mounting structure inboard thereof and a tongue located adjacent said half central mounting structure outboard thereof;
- and
- a side frame;
- wherein, when said tongue on one truck portion is placed in the slot of another truck portion, said truck frame is formed;
- and
- a frame retainer which is received in a full central mounting structure, formed by the half central mounting structures of two truck portions with the truck portions joined, wherein said full central mounting structure includes a hole for passage of said frame retainer and a fastener therethrough, and wherein said central mounting structure further includes a cavity therein to retain and capture said frame retainer;
- wherein, with the frame retainer received in said full central mounting structure, the frame portions are (1) prevented from laterally separating from one another by mechanical impedance, and (2) have a limited rotational movement relative one another along axes extending through each slot-tongue combination.
5 more elements
Dependencies are inferred from the claim text.