PROPULSION DEVICE AND BACKPACK

摘要

A propulsion device configured to impart movement to a skate- or ski-type vehicle with a person standing thereon for pushing or pulling the person can include a frame, a motor, a drivable member, a plurality of legs, and at least one lock. The motor can be mounted on the frame. The drivable member can be mounted on the frame and driven in motion by the motor. The plurality of legs can each be mounted on the frame for pivoting movement between a respective retracted position and a respective extended position. The at least one lock can be disposed to selectively lock the plurality of legs in the respective retracted positions. A backpack can be configured to hold the propulsion device.

主权项

1. A propulsion device configured to impart movement to a skate- or ski-type vehicle with a person standing thereon for pushing or pulling the person and comprising:
a frame; a motor mounted on said frame; a drivable member mounted on the frame and driven in motion by said motor; a plurality of legs each mounted on said frame for pivoting movement between a respective retracted position and a respective extended position; and at least one lock disposed to selectively lock said plurality of legs in said respective refracted positions.