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US 5,513,873 AGranted
Adjustable handle assembly for push cart
OwnerShou-Mao Cheninventor
Life of this patent
Estimating the term…
Abstract
A handle of a push cart includes two rods slidably engaged in two tubes and each having a number of teeth. Two sleeves are secured on top of the tubes and each has a pair of lugs. Two pins are secured between the lugs. A resilient arm has two ends slidably engaged with the pins, the ends each includes a tooth for engaging with the teeth of the rods so as to secure the rods to the tubes. The teeth of the resilient arm are disengaged from the teeth of the rods when the resilient arm is depressed. A fence is secured to the sleeves for preventing the resilient arm from being depressed inadvertently.
Claims6
A handle assembly for a push cart comprising:
- two tubes each including an upper end having a hole formed therein,
- two rods slidably engaged in said tubes and each including a plurality of first teeth formed thereon,
- a plate means including two end portions having sleeves formed thereon for securing to said upper ends of said tubes, said sleeves each including an orifice formed therein and aligned with said holes of said tubes, said sleeves each including a supporting means provided thereon, and
- a resilient arm including two ends slidably engaged in said supporting means and engaged with said orifices of said sleeves and said holes of said tubes, said ends each including at least one second tooth formed thereon for engaging with said first teeth so as to secure said rods to said tubes.
1 more element
Dependencies are inferred from the claim text.