Tow bar assembly and dolly comprising the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 6, 2018
Grant Date -
Dec 7, 2017
app pub date -
Nov 10, 2015
filing date -
Nov 21, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides a tow bar assembly, which may be retrofitted to a dolly while maintaining convenient space saving properties of permanently fitted tow bars. The novel tow bar assembly includes a tow bar, a shaft and a biasing member, such as a spring, biasing the tow bar towards an upright orientation about an axis of revolution. The shaft has a first end and a second end, which opposes the first end. The shaft connects the tow bar to the dolly from the ends so as to provide rotation of the tow bar in respect to the dolly about the axis of revolution. The shaft features an inner cavity, which extends along the axis of revolution. The biasing member is arranged into the cavity of the shaft and rotationally secured thereto. The shaft also features a first end plug at the first end of the shaft for enclosing the biasing member to the cavity. The first end plug rotationally locks the biasing member to the dolly.
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