Hand-detecting brake system for baby stroller

摘要

A hand-detecting brake system for baby stroller is equipped on a stroller frame, including a handle holder, a brake mechanism, an electric motor, and a battery. The handle holder is connected to one end of the stroller frame equipped with a hand-detecting device for creating a signal when user's hand being held or touched on the handle holder. The brake mechanism is operatively mounted on one side of a first wheel of the stroller frame for braking and un-braking the first wheel. The electric motor is capable of driving the brake mechanism to brake the first wheel when being received the signal from the hand-detecting device, and un-brake the first wheel when the signal from the hand-detecting device being disappeared. The battery electrically connected to the hand-detecting device and the electric motor for supplying needed power thereto.

主权项

1. A hand-detecting brake system for baby stroller, equipped on a stroller frame (1), comprising:
a handle holder (2) connected to one end of the stroller frame (1), having a hand-detecting device (3) for creating a signal when a user's hand touches the handle holder (2); a brake mechanism (4) operatively mounted on one side of a first wheel (18) of the stroller frame (1) for braking and un-braking the first wheel (18); an electric motor (5) capable of driving the brake mechanism (4) to brake the first wheel (18) when received the signal from the hand-detecting device (3), and un-brake the first wheel (18) when the signal from the hand-detecting device (3) being disappeared; and a battery (6) electrically connected to the hand-detecting device (3) and the electric motor (5) for supplying needed power thereto, wherein the first wheel (18) has a first retractably engaging element (180) capable of sliding along a first wheel axle (183) thereof and synchronously rotated with the first wheel (18); and the brake mechanism (4) includes: a first wheel mount (41) connected to a lower end of the stroller frame (1), formed with a first engaging cavity (410) for engaging with the first retractably engaging element (180) to brake the first wheel (18); and a first clutch mechanism (42) driven by the electric motor (5) for disengaging the first retractably engaging element (180) from the first engaging cavity (410) to un-brake the first wheel (18), and wherein the first retractably engaging element (180) has a teethed peripheral, and the first engaging cavity (410) has a relative teethed inner surface for receiving and engaging with the teethed peripheral of the first retractably engaging element (180), and wherein the first retractably engaging element (180) is biased by at least a spring (181) toward the first engaging cavity (410) thereby retaining the first retractably engaging element (180) in a normal braking position.